The best ADU contractors are always booked. Here's how you build with one anyway.
How ADUscale gets you one of California's best ADU contractors — with the capacity to build yours
The best ADU builders in your market are usually booked solid. They have the cleanest inspection records and the most reliable schedules, which is exactly why they have no room for your project — so most homeowners settle for whoever happens to be free. ADUscale changes that. We sit on the build side, openly, and we expand a top contractor's capacity: we take on the marketing, part of the project management, the data work, and the on-site oversight, so a builder with a real track record has the room to take you on. We screen every contractor against six data sources, including 11 million inspection records from our sister brand InspectPilot. We protect your budget with Verified Milestone Payouts — money releases only after each construction milestone passes independent inspection — and we never hold your money. You pay the same price you would going direct. And sometimes, after the Reality Check or Feasibility & Risk Assessment, the right answer is to wait or not to build at all on this lot. We say that clearly, before any money moves.
No extra cost to you — same price as going direct · Payments release only when inspections pass · We don't hold your money
Top-1% contractor by pass-rate Same price as going direct We never hold the money
Section 01
The Bottom Line — What ADUscale Does
Six things to know before you read further:
The best contractors are always booked. We expand a top builder's capacity so he can take your project — by handling the marketing, part of the project management, the data, and the oversight.
ADUscale doesn't build ADUs. We get you one of the best contractors, verify the work, and protect the budget — at the same price as going direct.
Sometimes the right answer is not to build. We say that clearly at the Reality Check stage, before any money moves.
Verified Milestone Payouts move money only after independent milestone inspection. We never hold your money.
Choose your payment rail: automated milestone payments through Stripe's payment infrastructure (default, included — not regulated escrow) or DFPI-licensed escrow via a third-party partner (optional, partner fee 0.5–1.0%). We don't hold your money on either rail.
Average California ADU project: $200K–$400K. The CSLB license bond covers under 10% of that — $25K total for all claims combined, not per claim.
The contractors who verify and agree to inspection-gated payments are usually the good ones. Contractors who run honest projects accept milestone-controlled payment because their bids are accurate and their work passes inspection. That reaction is itself a filter.
Section 02
What We Do — The Four-Stage Method
Hire us for one stage, or for all four.
Stage 01
Decide
We assess feasibility, build the cost model, and walk through the financing options for your specific situation — and connect you with the right lender. You get a written Feasibility & Risk Assessment for $199 that tells you whether to proceed and how. Sometimes the answer is not to build, and we say so before any money moves.
Reality Check — free, 2-minute lot eligibility read
$199 Feasibility & Risk Assessment — 12–20 page written report
About 1 in 7 reports recommends not to build on this lot — we say so clearly
Stage 02
Verify
We run every contractor bid through six data sources before a name reaches you. This is also how we identify the top builders worth expanding capacity for in the first place.
CSLB license status and 5-year tenure check
CSLB disciplinary history — zero actions in last 36 months required
California Superior Court filings: mechanic's liens, bankruptcy, breach-of-contract
Local building department inspection records (LADBS, San Diego DSD, SF DBI)
InspectPilot 11M-record inspection database, filtered to CA residential
Independent insurance and bond verification — confirmed directly with carriers
A contractor failing any one of 8 disqualifying screens does not enter your bid pool.
Stage 03
Protect — Verified Milestone Payouts
Your project budget moves only when work passes independent inspection. We define milestones with the contractor: foundation, framing, mechanical, finishes, final inspection. At each one, we verify in person and against city inspection records before any payout is triggered.
Automated milestone payments (default, included) — disbursements run automatically on a passed inspection, through Stripe's payment infrastructure. Not regulated escrow. We never hold your money.
Licensed escrow (optional) — true California-regulated escrow held by a DFPI-licensed agent. Higher regulatory protection, partner fee 0.5–1.0%. Universally accepted by CA construction lenders.
Stage 04
Build
We coordinate with the contractor, your lender, the city, and the inspectors. You get a single point of contact, and you follow the whole build in a customer portal: photo and video reports for every trade and a live project timeline. We catch the problems before they become change orders: the $15K–$30K sewer-lateral upgrade, the $20K–$60K hillside soils surprise, the $5K–$25K structural retrofit on a pre-1970 garage.
Not sure which stage you need?
Start with a free Reality Check — 2 minutes
It tells you whether your specific California lot qualifies and whether the Feasibility & Risk Assessment is worth running. No commitment.
Reality CheckFree2-minute lot eligibility tool. Fast read on whether your specific California lot can host an ADU.
Feasibility & Risk Assessment$19912–20 page written report: lot analysis, ADU type recommendation, cost model, financing path, risk register.
Full managed buildSame price as going directDecide → Verify → Protect → Build. We get you one of the best contractors, run 6-source verification, set up Verified Milestone Payouts, and oversee every milestone through certificate of occupancy.
No extra cost to you. The contractor pays us, out of the budget he already spends to find customers — ads, lead marketplaces, sales overhead. We replace that channel with verified demand plus our software and data, so the number you pay lands the same whether you go direct or through us. We're paid as your project gets delivered, milestone by milestone — not for an introduction. If your build stalls, so does our payout.
Section 04
ADUscale vs. the Alternatives
GC, on your ownDesign-BuildLead MarketplaceADUscale
What you getOne builder, no oversightOne firm, in-house everythingA list of biddersA top, verified contractor — with capacity
Your costThe build priceThe build priceBuild price + their lead marginThe same price as going direct
Verifies contractor?You do it yourselfThey are the firmNoYes, 6 data sources
Controls payments?Paid on contractor scheduleSameNot involvedVerified Milestone Payouts
Stays through delivery?No one but youYes (it's their build)No — sells the lead and leavesYes — first decision to final inspection
Section 05
Citable Factoids
$25,000CSLB bond max (total)All claims combined — under 10% of a $300K project
11M+Inspection recordsInspectPilot — since 2013, CA residential
6 sourcesContractor verification8 disqualifying screens per contractor
450+Projects abandonedAnchored Tiny Homes — Chapter 7, July 2024
$15–48MCollected, not deliveredMultitaskr — CSLB N2024-235, 100+ homeowners
1 in 7Reports say don't buildFeasibility & Risk Assessment findings
Section 06
Frequently Asked Questions
We help you get one of the best ADU contractors in your area and give them the capacity to take your project — by handling the marketing, part of the project management, contractor verification, and on-site oversight. Every payment is tied to a passed inspection, we don't hold your money, and you pay the same price as going direct.
We work on the build side of your project, but we don't hold the construction license, pour concrete, or frame walls. We get you one of the best licensed contractors, expand his capacity to take you on, verify the work, and protect the budget. We're openly on the build side — that transparency is part of the model.
The contractor pays us, out of the budget he already spends to find customers — ads, lead marketplaces, sales overhead. We replace that channel with verified demand plus our software and data, so your price is the same as going direct. We're not a markup on top of your price. We're paid as your project gets delivered, milestone by milestone — if your build stalls, so does our payout.
The optional licensed-escrow rail is true California-regulated escrow under California Financial Code §17000 et seq., held by a DFPI-licensed agent. The default rail runs automated milestone payments through Stripe's payment infrastructure — it is not legally an escrow account, and we never call it that. Both prevent funds from reaching the contractor before work is verified. We don't hold your money on either rail.
That's a verification signal in itself. Reputable contractors who run honest projects routinely accept milestone-controlled payment terms because their bids are accurate and their work passes inspection. If a contractor refuses, we recommend you don't hire them, and we'll explain exactly why.
Yes. The four stages (Decide, Verify, Protect, Build) are independently sellable. Some homeowners start with only the $199 Feasibility & Risk Assessment to make a go/no-go decision. Others bring us in mid-construction when they realize a project is going sideways.
The funds stay in the controlled account — a controlled Stripe account on the automated rail, or a DFPI-licensed escrow account on the optional rail. The contractor doesn't get paid until the work meets standard. We document the failure, work with the contractor on the cure, and re-verify before any payout.
Then we run the same six-source verification on them anyway, and your trust gets validated by data. If they pass, we proceed. If they don't, we surface what we found and you decide how to proceed.
Yaro Korets, Founder of ADUscale
ADUscale is a California build-side ADU partner: we help homeowners secure one of the state's top contractors, expand that contractor's capacity to take the project, and protect the budget with inspection-gated milestone payments — at the same price as going direct. Our work runs on our own continuously-updated database of California construction (543,983 LA permits, 10.4M inspection records, 40,540 contractors, 28,608 ADU sites via sister brand InspectPilot, since 2013; cumulative 11M+ construction inspection records), plus state/local zoning records (CSLB, LADBS), California HCD, and DFPI escrow law. We are not a lender, mortgage broker, or financial advisor.
Run a free Reality Check to confirm your lot qualifies. If it does, get the $199 Feasibility & Risk Assessment. If that confirms the project pencils, build with us at the same price as going direct — with a verified, top contractor who has capacity to take your job. If at any point the analysis doesn't add up, we say so. Sometimes the right answer is not to build at all. That answer costs $0.
