Home Additions
Chicago
Expand your Chicago home with a second-story addition, rear addition, or master suite. Full permit management, structural engineering coordination, and quality execution from foundation to finishes.
Get a Free EstimateHome Additions
in Chicago
When Chicago families outgrow their home, a well-designed addition is often the best solution. Moving within Chicago means dealing with competitive prices and limited inventory. Adding square footage to your existing home — whether up, back, or out — expands your living space while building equity in a neighborhood you already love.
32 Build has built second-story additions, rear additions, master suite expansions, and coach house conversions throughout Lincoln Park, Lakeview, Logan Square, Evanston, Oak Park, and surrounding communities.
Every home addition in Chicago requires structural engineering, architectural drawings, and permits from the Chicago Department of Buildings or the relevant municipality. We coordinate the full process — from engineer and architect through permitting, rough-in trades, and finish work.
What's Included
Every item below is self-performed by our own crews — no hand-offs, no gaps.
What Does It Cost
in Chicago?
Transparent ranges based on recent Chicago projects. Your exact cost depends on scope, materials, and conditions.
Single room or master suite addition of 400-800 SF. New foundation or cantilever, framing, all trades, and full finishes.
Full-width rear addition of 600-1,200 SF. Often includes expanded kitchen, great room, or master suite. Requires zoning review.
Full or partial second-story addition. Structural engineering, roof removal, new framing, and complete finish work. Maximum square footage gain.
Free Estimate: Every project starts with a free on-site consultation and written estimate. No obligation, no pressure. We'll tell you exactly what your project costs before you commit.
Our Process
Feasibility Review
We review zoning, setbacks, and existing conditions. Free initial consultation includes a zoning assessment and preliminary budget range.
Design & Engineering
We coordinate with your architect and structural engineer, or refer trusted local firms. Design phase typically takes 6-12 weeks.
Permits
Permit submission and review. Chicago permit review for additions typically takes 8-16 weeks. Suburbs vary.
Construction
Foundation or structural work first, then framing, roof, rough-ins, and finishes. Full coordination across all trades.
Frequently
Asked Questions
Most clients have the same questions before starting. Here are straightforward answers — no hedging.
Still have questions? Let's talkHome addition costs in Chicago range from $150,000 for a simple room addition to $700,000+ for a full second-story addition with high-end finishes. Most rear additions in Chicago cost $200,000–$450,000. Budget $300–$600 per square foot for a quality Chicago home addition.
Next Step
Ready to Discuss
Your Project?
Tell us about your project and goals. We'll assess the scope, provide honest feedback, and recommend the right approach.