Does your infill project pencil out?

The deal analysis tool built for small developers, architects, and community-scale investors evaluating missing middle housing. Know before you commit.

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Deal Analysis Feasible
Lot Size 7,200 sq ft
Zoning R-4 (Multi-Family)
Max Units (by-right) 4 units
Total Dev. Cost $842,000
Projected NOI $68,400/yr
Cash-on-Cash 9.2%
18.4% Dev. Margin
Above 15% threshold. This deal works.

The problem

Zoning changed. The tools didn't.

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States reforming zoning

Single-family exclusionary zoning is being eliminated across the country. But knowing you can build a fourplex doesn't mean you should.

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Tools built for you

Existing deal analysis tools are built for institutional investors or house flippers. Nothing addresses the zoning, parking, and setback math that kills small infill deals.

72%

Feasibility gap

Of rezoned parcels remain undeveloped. The opportunity is there. The confidence isn't. Small developers need clarity, not complexity.


How it works

Infill-specific analysis, not another spreadsheet

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Zoning-Aware Feasibility

Input your parcel's zoning code. InfillCalc calculates max units, setbacks, parking requirements, and FAR limits so you know what's buildable before you model the finances.

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Construction Cost Modeling

Per-unit cost estimates calibrated for missing middle typologies. Duplexes cost differently than fourplexes. Renovations cost differently than ground-up. We know the difference.

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Go/No-Go Verdict

NOI, cap rate, cash-on-cash return, and development margin in one clear output. A definitive answer to "does this deal pencil out?" before you spend a dollar.

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Scenario Comparison

Triplex vs. fourplex? Renovate vs. build new? Compare scenarios side by side and find the configuration that maximizes returns on your specific site.


Built for

The developers who actually build neighborhoods

Small Developers

You've built a few projects. You see an empty lot. You need to know if a triplex makes sense before you go to the bank.

Architects

Clients ask if a project is financially viable. Now you can answer with numbers, not guesses. Add feasibility analysis to your services.

Community Investors

You want to build housing in your neighborhood. InfillCalc gives you the confidence to commit capital where it matters most.

Every neighborhood deserves someone willing to build the missing middle.

InfillCalc exists so the numbers never stand in the way of the right project.

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