Chicago Condo + 2-Flat Gut — Board Approval, Vintage Systems, Stack Work
Chicago condo and 2-flat gut reality. Condo board Alteration Agreement, vintage cast-iron stacks, pre-WWII knob-and-tube electrical removal, radiator-to-HVAC conversion, CDOB Standard Plan, pre-1978 lead-safe. $130K-$450K typical.
Chicago's residential landscape is 2-flats, 3-flats, 4+unit walkups, and mid-century + modern condos. Pre-war Lakeview, Lincoln Park, and Wicker Park buildings carry 90+ years of plumbing stacks, knob-and-tube electrical, and radiator heat. Gut renovations typically include cast-iron stack replacement, full electrical re-wire, and radiator-to-forced-air or VRF conversion.
AskBaily routes Chicago condo and 2-flat guts to one BACP-registered GC with IL-licensed MEP subs and experience with the specific building type (pre-war 3-flat vs mid-century condo vs modern high-rise).
What a Chicago gut involves
- Condo board Alteration Agreement — 4-10 weeks typical.
- CDOB Standard Plan Review — 12-26 weeks.
- Cast-iron stack replacement budget if pre-1930.
- Knob-and-tube removal if pre-WWII — required by Chicago electrical code.
- Radiator-to-HVAC conversion — typical in modern gut scope.
- IL State Plumbing License + Chicago Electrical Contractor registration.
Frequently asked questions
Do I need board approval for a Chicago condo gut? Yes — virtually all Chicago condo associations require Alteration Agreement before CDOB permit. 2-flats owned by single owner typically don't — but 2-flat-owned-as-condo does.
What's the cost of knob-and-tube removal in Chicago? For a pre-war 3-flat apartment: $12K-$28K for full re-wire, varies with panel location and access.
How much does a Chicago condo gut cost? Mid-tier Lincoln Park or Lakeview 2BR: $130K-$280K. High-end Gold Coast or Astor Street: $320K-$650K. Vintage 3-flat apartment gut: $180K-$400K.
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Each neighborhood has distinct regulatory posture. Baily pre-scopes against the specific overlay your home sits under.
- Lincoln ParkChicago Department of Buildings
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- Ukrainian VillageChicago Department of Buildings
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- DunningChicago Department of Buildings
- Belmont CraginChicago Department of Buildings
- The LoopChicago Department of Buildings
- West LoopChicago Department of Buildings
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- South LoopChicago Department of Buildings
- Near North SideChicago Department of Buildings
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- Morgan ParkChicago Department of Buildings
- Mount GreenwoodChicago Department of Buildings
- HegewischChicago Department of Buildings
- South ChicagoChicago Department of Buildings
- East SideChicago Department of Buildings
- Oak ParkChicago Department of Buildings
- EvanstonChicago Department of Buildings
Talk to Baily about your Chicago project
Start a scoping conversation. Baily verifies every matched contractor against the specific licensing, insurance, and permit requirements that apply in Chicago before you get a quote.
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Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.
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