For self-builders & individuals

Be your own contractor — without the expertise gap.

Pro is built for the person standing on the parcel. Owner-builders, self-builders, individual architects, contractors, and tradespeople doing personal projects. faircompanies.build closes the gap between “I own land” and “I have a permit-ready set of plans” — without forcing you to hire a full design team for every question.

Start 14-day free trialSee pricingRecommended plan: Pro · $20/mo $20/month with a 14-day free trial; 500 credits is plenty for a single project

Your own project, end to end

Start from a single parcel and walk through every stage in plain language — feasibility, lot fit, jurisdiction, design, BIM, deliverables, permit strategy, value engineering. No gatekeepers between you and the answer.

Professional-grade outputs

The same permit-ready PDF, BIM/IFC export, and jurisdiction summary an architecture firm would charge thousands to assemble. Yours, on a Pro subscription.

Designed for one parcel at a time

Pro gives you unlimited projects so you can explore different lots or scenarios, but the workflow respects that you're focused on a single decision — not running a portfolio.

Where it fits

Concrete use cases

Owner-builder of a primary residence

Walk your own land through feasibility, code, and concept. Hand a clear scope and BOM to whichever specialist you bring in (or the trades you GC yourself).

Adding an ADU to property you own

Confirm ADU eligibility, jurisdiction-specific requirements, and a sensible massing — before you commit to drawings or a contractor.

Individual professional — architect, contractor, designer

Use faircompanies.build on personal projects or to validate a client lead before opening a formal engagement. Pro is enough for individual practice; firms with teams should look at /solutions/aec.

Pre-purchase due diligence

Run feasibility on a parcel before making an offer. Get zoning, hazard, and permit-history in minutes — same data sources the pros use, surfaced as plain-English answers.

How it works

A typical engagement

  1. 1

    Start a project

    Drop in an APN, address, or pin on a map. Site data prefills automatically.

  2. 2

    Run feasibility

    Confirm zoning, setbacks, hazards, and likely permit path before you commit any further.

  3. 3

    Iterate concept

    Test dwelling concepts that fit the lot and your budget. Rough BOMs and cost trade-offs are first-class outputs.

  4. 4

    Build the deliverables

    Permit-set PDF, BIM/IFC, scope list, and an honest jurisdiction strategy — what your contractor or permit office actually needs.

Ready to start?

Hobby is free, Pro is $20/month with a 14-day trial, and Enterprise is a custom contract with faircompanies.build Console access.