Showing posts with label site map. Show all posts
Showing posts with label site map. Show all posts

Thursday, August 15, 2013

Frame Houses on Estes, 1907


So I'm continuing to document some of the more common frame homes in an area of Rogers Park bounded by Touhy, Clark, Pratt and Ridge.  One of the best ways to do this is to spot a rows of homes clearly related in their massing, materials, characteristics, and then go draw them.


Gable front cottages are the classic workers' housing in Chicago.  You may have seen the gold-plated versions of these from the 1870s and 1880s in Old Town and Lincoln Park, where they've often been elaborately restored with eave brackets and complex window and door moldings. What you see above are simplified versions, with minimal ornamentation and generous front porches.  All four were permitted in 1907 for owner John M. Carlson.  The first two cost $2,500 each, but the next two cost only $2,000 each.  This is the advantage of building identical homes- each time you find ways to estimate the building materials more accurately and make the process more efficient.  And of course this translates into a greater profit.


Less than a block to the east there's another cluster of homes.  These were developed by Jacob Meirel, and four of the six were permitted in October of 1907.  Two alternating models were built.  The gable design provides for greater attic volume, while the hipped roof includes a front-facing dormer to introduce more light.  Both designs have partial-length front porches and projecting bays on the first floor.  These were built for $4,000 each, a substantial step-up from the basic cottages down the street, but still affordable to a middle-class household.

So there's nothing revolutionary going on here.  Developers are moving into a neighborhood and cautiously building a few homes.  If they sell and a profit is made they build a few more.  Variations in size and price occur to tailor the homes to different budgets, often on the same block.  This is the heyday for this type of frame construction in Rogers Park.  Lots which don't develop in this period will be developed later at a greater density due to the increases in the cost of land, labor, and materials. But for now let's enjoy Rogers Park in its suburban phase...

You can see previous postings about other frame houses in this area here and here.

Thursday, February 21, 2013

Townhouses at Greenleaf and Oakley, 1968

Not long ago I came across a 1968 Chicago Tribune article about a West Ridge development coming on the market.  It included double houses, courtyard buildings, and townhouses on the north and south sides of Greenleaf, between Oakley and Western.  All of them duplexed, with small private rear yards in addition to communal front yards or interior courts.  All have accomodations for parking, ranging from garages with direct street access to parking spaces along the alleys.   Their design and detailing is consistent, but they have a variety of form you don't often see in multi-building developments.

I  think of 1968 as a turning point in Chicago history.  In one year you have the race riots following the assassination of Martin Luthur King, Jr. and the disastrous Democratic National Convention.    This signaled a period of public and private disinvestment in the city which continued for decades.  It was also the year my parents, lifelong Chicagoans, left for Columbus, Ohio.   So clearly things were pretty bad.  So what kind of housing might still attract city residents in 1968?

Looking southwest from the corner of Greenleaf and Oakley.
 A weird version of French Provincial!   With mansard roofs and arched dormers!  The buildings are an odd blend of traditional and modernistic elements.  According to the article there are three and four bedroom units in two-story or tri-level designs.  The model unit had a family room with a 16 foot high ceiling merging with the breakfast room.  They featured central air, wall-to-wall carpeting, and plastic laminated counter tops.  I wonder if they've changed much in the past 45 years.

So to summarize, large informal living space, tiny private outdoor areas, accomodation for parking, and weird semi-traditional architectural styling. Not sure this really tells me much about 1968.  In other parts of the city they were building walls topped with broken glass, so maybe West Ridge wasn't doing too badly.

Wednesday, October 31, 2012

Veteran's Housing in West Ridge, 1946-1947


A few months ago I wrote about an example of Defense Housing in Rogers Park built for war workers in 1942.  These were the result of strict Federal guidelines permitting only defense-oriented projects to receive priority use of building materials.  With the end of the war in sight by 1944 the country began to prepare to absorb about 16 million returning veterans.  These soldiers had left in the middle of a decade-long housing shortage, and would be returning to all parts of the country, not just areas that had benefited from wartime construction. 

Below is a draft of an article intended for the upcoming issue of AREA Chicago.  It will probably change a bit once I get comments from the editors.

In September of 1946 the Chicago Tribune printed an article announcing plans for a 92 unit development intended for WWII veterans on 3.6 acres on Ridge Avenue, north of Devon. At the time this was a sparsely developed area, dotted with the single family frame houses and small truck farms which comprised much of the early character of West Ridge.

The architect was listed as Edwin H. Mittelbusher of Howard T. Fischer & Associates, Inc. Mittelbusher served as the Assistant Chief Architect for the Chicago office of the Federal Housing Administration from 1940 to 1945. Howard Fisher was the founder of General Housing, Inc. and pioneered the development of pre-fabricated housing. He served as the director of the development board of industrial housing for the National Housing Agency in 1946-1947. In short, this development was designed by people skilled at working within a bureaucracy.

Damen-Ridge Garden Apartments, 1946.  Perspective view from Ridge looking Northwest.
The project itself consists of eight two-story brick veneer buildings with hipped roofs arranged around green inner courts. The outer courts accommodate parking areas. The buildings are a restrained version of the Colonial Revival, with modern touches, such as concrete sun shades on the first floor corners and entrance stairs illuminated with large glass block windows. They were constructed as a combination of 4 and 5 room rentals. This project was initiated under the Veteran's Emergency Housing Program (VEHP), but between the time these buildings were planned and when they were completed the VEHP became functionally obsolete.

The Veterans Emergency Housing Program was developed and proposed by Wilson Wyatt, former mayor of Louisville, Kentucky, at the direction of President Truman. The initial goal was to create 2.7 million housing units within two years to serve veterans, many of whom returned to crowded conditions and shared housing situations. To accomplish this wartime price and wage controls were intended to be maintained and priority was given to housing development through a series of initiatives. The bill establishing the VEHP was signed into law in May of 1946.

Six months later Republicans took control of Congress and eliminated much of the economic controls, resulting in a sharp increase in costs in response to pent-up demands. The program had been responsible for over 1 million housing starts in 1946, but many stood half-constructed due to shortages of building materials. Soon a home that would have sold for $6000 in 1945 was priced at $8,000. This was at a time when many veterans were marrying and beginning a family. Rather than buy a home at an inflated price many chose to find rental housing. This is the era reflected by the buildings in West Ridge constructed specifically for the returning veterans.

2212-30 W. Farwell and 2213-31 W. Morse, 1946.
The construction of these brick buildings was advertised in the Chicago Tribune in November of 1946.  The architects and builders are listed as Charles and Arthur Schreiber, who established their firm in 1938 and later went on to design many modernist structures in the Southwest.  These 4 and 5 room rentals were intended to accommodate 74 veteran families.  They are similar to earlier courtyard buildings in the neighborhood, but with large sunken courts and parking along the alley.  The restrained details, portal windows, and limestone door surrounds suggest the Moderne style, which lent itself to construction on a budget. 

6102-6122 N. Hamilton, 1947.
In February of 1947 the Chicago Tribune published an article about these three buildings, which were constructed as cooperative housing for veterans and designed by architect Clarence Johnson. They're traditional in form and ornamentation, including decorative entrances, corner quoins, water tables and limestone details. These are located on wide lots but are quite shallow due to the cemetery immediately west. The cooperative ownership structure is unusual, and the article claims that this is one of Chicago's first cooperative apartment developments. Titles to these buildings were conveyed to a corporation, and each veteran buyer purchased shares of that corporation. Cooperative ownership was (and is) rare in Chicago, and has been largely eclipsed by condominium ownership. Of the three developments examined here, this is the only one which wasn't intended as a straight rental property.

While I don't intend this to be a comprehensive look at veteran's housing in Chicago (or even in West Ridge), it does provide some examples of the types of development which were feasible immediately following WWII. And in some ways it sets the stage for the suburban explosion of the 1950s, when affordable single family homes became widely available, changing the character of the American landscape.

Sources

1. The AIA Historical Directory of American Architects, 1956. Accessed online at http://communities.aia.org/sites/hdoaa/wiki/Wiki%20Pages/1956%20American%20Architects%20Directory.aspx
2. Chicago and Evanston Vet Apartment Units Approved. Chicago Daily Tribune; Sept. 8. 1946. Accessed through ProQuest Historical Newspapers: Chicago Tribune (1849-1988). Pg. NA
3. Work Started on Three New Flat Buildings. Chicago Daily Tribune; Nov.10, 1946. Accessed through ProQuest Historical Newspapers: Chicago Tribune (1849-1988). Pg. 43
4. Finish Homes in Early Vets’ Co-op Project. Chicago Daily Tribune; Feb. 23. 1947. Accessed through ProQuest Historical Newspapers: Chicago Tribune (1849-1988). Pg. WA.
5. To Hear Only Thunder Again: America’s World War II Veterans Come Home. Mark D. Ellis. Lexington Books, 2001. Accessed through Google eBooks.
6. The Veterans Emergency Housing Program. William Remington. Law and Contemporary Problems, Vo. 12, No. 1, Housing (Winter, 1947), pp. 143-173. Accessed through JSTOR.

Thursday, July 12, 2012

7405-7427 N. Wolcott, Defense Housing, 1942

On the corner of Wolcott and Fargo there's a collection of eight identitical duplexes arranged around two common courts. The simple massing and limited detailing suggests public housing.  That's not far from the mark, but the story is a bit more complex.

Even though the United States didn't enter WWII until 1941, the writing was on the wall much earlier.  As the country prepared to shift into full-scale wartime production, a huge deficit in housing needed to be addressed.

Let's say you're a government and need to build some housing ASAP or risk losing the biggest war in all of human history.  Here are a few methods you might consider:

1. Buy land and build permanent homes. Or entire neighborhoods.  Or entire cities.
2. Build temporary homes.
3. Prioritize materials for war-related private projects.
4. Provide financial incentives for property owners to create additional units in existing buildings. 

In the end the Federal government did all of these things and more.  Numerous agencies were created to administer these programs, some with Congressional authorization and some without.  It wasn't unusual for the administration of one program to be folded into another, based on funding and legislation.  There must be historians who specialize in Federal housing policy, but I don't envy them. 

The Office of Production Manangement (OPM) was responsible for regulating building materials.  If a project was important to the war effort, it would receive a priority rating.  If it didn't have a priority rating it probably wouldn't get built.  Chicago was one of 275 "defense areas" identified as appropriate for the development of war housing. 

The most important restriction placed on defense housing was a $6,000 price cap per unit.  Chicago's City Council immediately protested this limitation, arguing that the higher cost of land in Chicago would send most of these projects to the suburbs.  The suburbs received their share of defense housing, but many projects did eventually locate in the city, particularly near the city limits where cheap undeveloped land could be found.
Looking East from N. Wolcott.  Behind the trees are the El and Metra embankments.
The cap forced some Chicago builders to vary from the small detached single family residences commonly built as defense housing.  Instead, developers looked for ways to combine units into larger buildings on several lots, allowing them to bring down costs through an economy of scale.  I haven't yet confirmed this, but I suspect the development regulations of Chicago were relaxed at this time to allow greater flexiblity in the placement of multi-unit buildings.  This permitted projects to share common spaces while resulting in a greater overall density.  This treatment would become common with the introduction of planned developments in Chicago's 1957 zoning ordinance, but it must have been unusual in the 1940s. The underlying lot configuration of this area would have allowed six individual buildings with frontages on Wolcott.  Instead there are eight buildings, four of which have no frontage at all. 

Defense Homes for West Rogers Park
(Chicago Tribune, 4/19/1942)

Given the strict cost limits, the design of the buildings is worth noting.  You can't get much simpler than a rectangular box with a pitched roof.  They have common brick walls with simple arched limestone entrances.  Any architectural detail is the result of projecting brick string courses of various designs.  It looks to me like a scaled-down version of  the Art Moderne style.

The architect for this project was Carl J. Kastrup, who had won prizes for his designs of low-cost suburban housing prior to the war.  In 1942 his firm joined four others to collectively address the challenges of designing and administering defense-related work.

I feel like there's much more to be written about the development of defense housing in Chicago.  In particular, it seems that the designs developed under strict economic and administrative pressure had an enormous influence on the look of Chicago in the post-war period.  But this will have to wait for some additional research.


Monday, July 2, 2012

7440-7455 N. Hoyne, 1929 - Emma Kennett Strikes Again

Figure 1. Site block plan.
On the short block of Hoyne between Fargo and Birchwood, our intrepid developer, Emma Kennett, probably created her most notable project.  These six buildings are roughly the same size and shape, but their facades were given the high-style eclectic treatment popular in the 1920s.  And of course nothing said taste and luxury quite like French and Spanish Revival. 
According to an article published in the Chicago Tribune on March 31, 1929, these buildings represented a $480,000 investment on behalf of the developer. That's nearly $6.5 million in 2012 dollars.  That was an ambitious undertaking for a small developer.  And as a side note, this was just a few months away from the onset of the Great Depression.

Figure 2. East side of N. Hoyne.

On the east side of the block are the Spanish Revival styles.  They all have various types of wrought iron balconies and a pale cream brick, which was seen as appropriate to the style.  The upper floors have casement windows and French doors, while the ground level has double-hung windows with similar pane divisions.  The casement windows alone are worth a visit.  Few original casements survive from the 20s, and this block has an impressive number.  Imagine how much these buildings would lose with simple double-hung replacements.

Figure 3. Door details

I'm particularly impressed by the door on the left.  Not only is it an arched door in a rounded tower, but the door itself is curved to match the tower's radius.  The middle door is set within an ornamental stone surround that I can only describe as Art Deco.  The simplicity of the door to the right is offset by a complex portal window, which reflects some of the arched window treatments on the block.  Two have elaborate copper kick-plates and decorative hinges attached with rivets.

Figure 4. West side of N. Hoyne.

The west side of the block is even more elaborate.  Curved towers and complex roof forms anchor these buildings, which have random-cut limestone veneers at the lower floors and brick above.  The half-timbering designs are works of art in themselves. The false mansard roofs on this side of the street are large, making them easier to read than the Spanish-style roof forms across the street. 

Figure 5. More door details.

The doors are great, each with a unique design and window pattern.  They all have the same copper kick-plates and hinges seen on the east side of the block.  And I've never seen a window pattern quite like the one found on the center door.

The Tribune article indicates that Emma Kennett designed these buildings with the help of Herbert J. Richter.  A casual internet search couldn't identify Mr. Richter.  I assumed he was the architect, but according to the Chicago Historic Resources Survey, Arthur Bucket is the architect of record.  This would make sense, since I already found Arthur Bucket's name associated with the corner apartment building at Farwell and Oakley, which I wrote about previously.  So who is Herbert Richter?  It requires some more research...

It was great to find these buildings included in the Chicago Historic Resources Survey, and it gives me an opportunity to illustrate the value of a good survey sheet.  In addition to a site map and small photograph, the surveyor also creates a narrative about the building's architectural significance.  The account below explains why architectural historians are in constant danger of walking in front of cars while wandering through the city:
Figure 6. 7451-7455 N. Hoyne
Symmetrical facade centers on semi-circular plan bay/stair tower with portal at base and topped with a hexagonal roof and finial.  Romanseque casement windows on either side of door topped with six-paned fan light.  All windows in sets of threes except baseement of simple Roman arch.  First floor fenestration repeats casement-fanlight treament with a colonade of counter-spiralled pilasters.

Third floor bays have pairs of French doors opening onto balconies flanked by smaller windows. 

Stylized Italianate eave brackets lead the eye to small windows on 2nd/3rd floors, one with ornated carved limestone surrounds and pilasters. 

Door is carved, paneled oak with semicircular leaded overglass with peep windows at eye level.  Keystones, sills, brackets and spiral columns rendered in stone.  Limestone coping on south corner gate repeats brackets at roofline. The lion finial weathervane atop tower [Did I miss this, or is it gone?], false hinges on doors and kickplate are hammered copper.
It's exhausting to read too many of these, so I'm just including this one as a representative sample.  Some descriptions are much longer.

Figure 7. L.B. Sugarman's rendering of the
west side of Hoyne. From a Chicago Tribune ad
published 
March 31, 1929.
And of course, I need to include the rendering (poorly reproduced) by L.B. Sugarman. He provided a number of perspective drawings for Kennett Construction.

Tuesday, March 20, 2012

Sheridan and Albion, 1937

OK, here's the last of my images adapted from the IDOT photo archive of Chicago intersections.  This filling station at the Northeast corner of Sheridan and Albion was a particularly solid design, and I'm struck  by how similar it is to modern gas stations.  There are drive-through pumps accessible on either side for motorists who just need a fill-up,  and garage bays for more in-depth servicing.
This is one of those images that benefits from the site plan (courtesy of the Sanborn Fire Insurance Map of 1937).  The sales area and the service bays sort of pinwheel against each other, with the underground gas tanks at the rear.  I imagine the space behind was for storing cars.

If you look in the drawing you can see the outline of the adjacent house to the North, along with two huge billboards angled towards the street.  These were located on the vacant lot between the house and the filling station.  Compared to the 1930s we get off easy when it comes to signage.  Anyone with plot of land could apparently erect an enormous sign if they could find someone willing to pay for it.  Now you can't put up a sign larger than 100 sq.ft. without an order from City Council.  But I'm not a huge fan of billboards, so I'm not complaining.

It makes sense to place filling stations on the corner, where it can have access to two streets.  But why did the station itself have to be located in the center of the lot?  If I could go back in time and make a few suggestions it would be to locate gas stations on the corner of the lot and have the pumps and service areas in the back.  This would be an especially good treatment in dense urban areas, where the service station disrupts the streetscape.  This gas station was on the corner of a residential block and at least tried to retain a little grassy area near the sidewalk. 

So this might be the last gas station for a bit, although I found another good one on Clark and a tiny one on Sheridan.  I'm trying to limit thematic postings to three.  For now.  Until I return to Sheridan Road please enjoy this great pictorial  that makes use of the same IDOT photos I've been admiring.

Tuesday, June 7, 2011

Entrances to Courtyard Apartments

I'm going to try and do what I normally do with these courtyard apartments, which is take a complex element, distill some of the best examples, and try and draw some conclusions.  But first I thought it might be useful to create a simple social space map of a courtyard apartment to help illustrate how they differentiate various levels between public and private space.  (My apologies to Adrian Tomine for stealing one of his color schemes from a New Yorker cover.)

The grey tones represent the public areas, including the street, the parkway, the sidewalk, and the alley.  Everything outside of the public right-of-way is private.  But there are levels of privacy.  In practice, the front yard functions as a semi-public zone, where it's unlikely you'll be arrested if your dog wanders over to the rose bushes. 

But as the courtyard establishes itself the character of the space changes, and you may find yourself more reluctant to enter deeply without a good reason.  This is very natural, and reflects the growing social control of the space as conveyed by the landscaped features, easy visual proximity to living spaces, and increasingly obscured views of the street.  By the time you get to the end of a particularly deep courtyard you feel fairly conspicuous. 

The element that divides the semi-public space from the increasingly private is the gate, or entryway.  Sometimes this is only suggested by the shape of the building, but often there's a designed element intended emphasize and formalize this division.  The location, materials, design, and visual permeability of the gate are all messages which the architect (and later, owners) wanted to convey to those that pass by or inhabit the building.

7405-7415 N. Damen, 1927
 
This brick and stone arcade is a good example of a substantial entrance element in the Classical Revival style.  A broken pediment with central urn is supported by paired pilasters.  The round arches are spaced with circular stone elements (called tondi).  The bottom portions of the arched openings are partially filled with wrought iron.  Despite the level of detail this screen is less than one foot thick. The open arches invite views into the court, but don't necessarily encourage visitors.  The central stone entrance reflects the design used for the main entrances into the building.

1637-1642 W. Estes, 1929
 
This gate is a bit more traditional. The brick and stone piers with decorative ironwork is a time-honored way to say, "Hey, we live here!"  This is for a side-court building, which has less of a span to fill between the building and the side property line.  On the left you can see that there's a half-column.  This is where it attaches to the building. It looks a bit odd in isolation, but by cutting the column in half they were able to maintain the scale without making it seem cramped.

2014-2018 W. Estes, 1931

This is one of my favorite entrances of an L-court building.  While it presents a substantial appearance the central piers are lowered, becoming more welcoming.  I haven't seen these octagonal ornaments before, but they provide the perfect emphasis for the gate.




1919-1923 W. Estes, 1928

This is one of the more modest entrances I documented.  The low wall invites you to have a seat.  The built-in urns are intended for seasonal plantings, but could also be adapted for Halloween candy.  The limited size puts this squarely in the symbolic category.

6414-6420 N. Newgard, 1932

This is another fairly elaborate arched screen for a central court building.  While this approaches the look of a gatehouse, it's not quite there.  It's designed in the Italian Rennaissance Revival mode, just like the main building.  Again, the arches carefully frame views into the courtyard while conveying a sense of exclusivity. But the detail goes a bit far in this case, almost giving the entrance a toylike quality. 



Although these gates weren't primarily intended to function as actual security elements, many have been adapted for that purpose.  It doesn't take much to fill an arched opening with an iron fence and add an electronic security door.  Frequently there are fences installed right at the sidewalk in addition to beefing up the security of the historic entryways.  This creates almost an "airlock" feel on the street, as if the building is under seige.  The most peculiar treatment I've seen uses airlock fences as well as individual fences along the walkways leading to the first floor doors.  How those fenced areas are mowed, I have no idea.

The social space map above is really a best-case scenario.  As entrances are modified to address real or perceived security concerns the semi-public space and the sense of permeability disappears, giving a fortified look to the street.  The green spaces which are so much a part of the courtyard design give way to a less rich sensory experience, where only visual access is maintained.

I have about 5 more of these entrances to document in a future post.  But maybe time for a break from courtyard apartments...

Wednesday, February 23, 2011

Mirrored Courtyards on Farwell


Parapet Detail, 1425-1433 W. Farwell
 A few years ago I found an amazing book called "The Concise Townscape" by Gordon Cullen. This
is a collection of essays published in 1961 and adapted from a series of articles printed in The Architectural Review after WWII.  Cullen was English, and worked as an illustrator, townscape consultant and planner.  His book is an extended exercise in documenting built environments and drawing out urban design principles which could inform the work of planners and architects.  Knowing these studies were created in the aftermath of the war gives a certain intensity to his work. Just to give a quick impression, his photos and graphics illustrate unusual concepts, including viscosity, insubstantial space, thereness, and deflection.  And there are many many more.

When I finished the book I wanted to recreate it using examples from my neighborhood to illustrate the dozens of principles Cullen identified.  It was a stretch.  Actually, it was impossible.  There's a big difference between a 120 year-old Chicago neighborhood built on a grid and a medieval English town (OK, multiple towns) which developed over hundreds of years.  But the exercise itself had some value, and it affected how I looked at the neighborhood.  I began to identify some interesting things I had never noticed before. 

Often  in a gridded city with rectilinear lots it's the negative space which creates unique effects.  This is never more true than with courtyard buildings, which create their own landscape and interior plaza, typically in densely developed neighborhoods.  Rogers Park is a mecca of courtyard buildings, with nearly 200 scattered throughout the neighborhood (yes, I've counted).  As far as I know, no one has done a definitive study of this building type.  While this is on my drawing board for the future, I want to take a closer look at a condition that's relatively rare--  two courtyard buildings of comparable size and character mirroring each other across a street, creating a secondary, axial path in the center of a block. This takes us to Farwell Avenue, directly west of the Red Line elevated train.

You can appreciate these courtyards best while standing in the middle of the street (briefly please).  Suddenly you're in a different city, where the streets are narrow and the buildings loom above.  There's a sense of enclosure and intricacy not usually found in Rogers Park (note the Cullenesque reference words!). I imagine the most interesting views would be from the third floor from the back of the buildings, where you can appreciate the entire 380 foot combined courtyard. 

Was this alignment accidental, or were larger forces of design and organization  at work within the grid? But first maybe a closer look at the spaces defined by the buildings.

The buildings themselves are so similar that it makes sense to talk about both of them at the same time.  Both are built on lots with 100' frontages and 175' in depth, and are 3 stories with a raised basement.  Both use a combination of face brick and stone (or cast stone) ornamental surrounds and accents.  They make use of false mansard roofs with Italian tile and have castellated bays that project into the courtyard, providing additional light as well as views to the street.   Both were built within a year of each other, 1422-1430 in 1927 and 1425-1433 in 1926.  And the final argument for intent rather than accident, both were designed by architect Anthony H. Quitsow. 

Some cursory online research (mostly the Chicago Tribune) shows that Quitsow was basically a specialist in the design of large, multi-unit buildings with eclectic details.  There are several in Rogers Park, and a number remaining in Evanston, just to the north. He's an architect who might be identified as typical of  the period, someone who worked with builders and developers to provide solid, predictable results with good curb appeal.  Not much information about him, except that he had offices downtown and at some point became a developer himself. 
Parapet Detail 1422-1430 W. Farwell

Why this block went from entirely single family homes in 1914 to accomodating several large, multi-unit buildings by 1937 (dates of the Sanborn Fire Insurance Maps) is difficult to say precisely, but it would make sense in the larger context of the neighborhood.  The 1920s saw Rogers Park develop from a suburban enclave to an urban neighborhood due to improved transportation (especially the elevated train) and an influx of new residents.  And there was an increasing acceptability of living in large multi-unit buildings, which had been considered "anti-family" by the previous generation.  A larger scale of residential development had become possible due to improved financial instruments, more standardized construction, and plenty of skilled (and cheap) labor.

But did Quitsow anticipate that combining courtyards (at least perceptually) would create a unique design feature?  Or did he just draw up the buildings based on the most profitable use of the lots permitted by city codes?  I like to think that both were considered and had their impact on the final result.  But it hardly matters.  Even in a neighborhood with limited history and tighly controlled development there will still be fortunate (and sometimes unfortunate) accidents.  I intend to explore a few more of these in the coming months.