Between 1945 and 1975, builders across Illinois, Wisconsin, and Indiana put up millions of square feet of ranches, split-levels, and Cape Cods — small, efficient houses whose kitchens were designed for one cook doing one task at a time. Small segregated rooms were the point: cooking here, eating there, living somewhere else. Today those closed kitchens are the number-one remodel driver in postwar housing — most of the counters we template go into exactly these houses — and the projects succeed or fail on one question asked early: is that wall bearing?

First, the wall question

In postwar construction, the wall between kitchen and dining room frequently helps carry the roof or the floor above. A non-bearing wall comes out cheaply and quickly. A bearing wall needs a structural engineer, an engineered beam sized to the span, permits, and temporary shoring — the difference is thousands of dollars, not hundreds. No reputable contractor will tell you which one you have from the doorway (and neither will we); the answer lives in the basement — look at what runs perpendicular to the joists — and in the attic. Pay for the engineer's letter before you fall in love with a layout.

The ranch playbook (1950s-1970s)

The ranch is the easiest postwar house to open up. One story means the simplest load paths — a beam over a kitchen opening only has to handle roof and ceiling, not a second floor. Full basements, common on Midwest ranches, put plumbing, wiring, and ductwork within reach below the kitchen floor, which makes moving a sink or adding an island far less invasive than in slab-built houses.

The classic move: open the kitchen-to-dining wall, run an L-shaped kitchen along the remaining walls, and add an island or peninsula facing the new sightline. Two honest cautions. First, dark galley kitchens of this era usually hide dated systems — once walls open, outdated wiring and old plumbing tend to need replacing, so prioritize systems over finishes if the budget forces a choice. Second, 8-foot ceilings mean standard tall cabinets and hood runs need careful planning; there is no spare height to waste on soffits you do not need.

The split-level playbook (1955-1975)

Split-levels are the hardest of the three. The kitchen usually sits on the main or mid level, hemmed in by the very stairwells that define the house. Walls carrying the offset floor levels run through the middle of the plan — often through the kitchen zone — and relocating the kitchen means fighting the section of the whole house.

The realistic strategy is openness without open concept: replace solid walls with half-walls and railings to borrow light and sightlines from adjacent half-levels; remove ceiling soffits and bulkheads that compress an already low ceiling; and over-invest in lighting, because the segmented plan starves the kitchen of natural light. Within the kitchen itself, a same-footprint refresh — taller uppers, better storage, new counters and backsplash — captures most of the daily-life improvement at a fraction of structural cost. We do that half of the job constantly in split-levels, and the before-and-after holds its own against wall removal. Expect 1960s-70s systems (undersized panels, aging supply lines, tired ductwork) to enter the scope once anything opens.

The Cape Cod playbook (1930s-1950s)

Most Midwest Capes went up between 1945 and 1960 at 1,000-1,400 square feet, with kitchens of 80-110 square feet. The steep roof that sheds Midwest snow also makes expansion expensive — knee walls and roof framing carry loads in inconvenient places, and additions quickly cost more than the kitchen they enlarge.

So work the footprint. Removing a partial wall or dropped ceiling toward the dining nook, then adding a peninsula (an island almost never fits), turns the galley into a sociable room without an addition. If the budget is tight, the three moves that carry the whole room are painted cabinets, lighter countertops, and a real backsplash — published 2026 figures put that refresh around $8,000-$15,000, versus $35,000-$60,000 for a full gut. Before any of it, have the electrical panel evaluated: many Capes still run knob-and-tube or 60-amp service that cannot support a modern kitchen, and knee-wall rot loves to hide behind original finishes.

Spend in the right order

For all three styles, the money order is the same: systems first (panel, wiring, plumbing, ducts), structure second (the wall, the beam, the peninsula), finishes last (cabinets, counters, backsplash, lighting). Yes, we just told you to buy our part of the project last — that is the correct order, and we would rather be the happy ending than the line item that got torn back out. Postwar houses are forgiving, well-built, and abundant across the tri-state area, but they are all 50 to 80 years old now, and the remodels that go sideways are almost always the ones that budgeted for finishes and discovered systems.

Sources

1960s Ranch House Interior Remodel Before and Afters — Block Renovation
Cape Cod Remodels: Before and After Images — Block Renovation
Renovating a 1970s Split-Level House for a Modern Lifestyle — Degnan Design-Build-Remodel (Madison WI)

Opening Up a Postwar Kitchen: Ranch, Split-Level, and Cape Cod Playbooks