One GC Per Region.
Forty Regions. One You.
Forty territories across all six New England states. About 100,000 ADU-potential parcels behind each one. No bidding wars. No lead brokers. Just high-intent homeowner referrals, delivered direct to the one builder who holds that market.
The Contractor Reality
You're Bleeding Revenue to Find Every Next Job.
The modern contractor spends 8–15% of revenue on lead acquisition — bidding against strangers, chasing ghosts, and losing on price. There is a better way to fill your calendar.
Bidding Wars
Six GCs fighting for the same homeowner. Margins get crushed before the job even starts.
CAC Spiral
Ads, lead brokers, referral farms — 8–15% of revenue gone before the first swing of a hammer.
Cold Leads
Lead brokers shop you against strangers. Most ghost before the first site visit. Most "interested" homeowners aren't.
No Territory Protection
Every directory sells your zip code to the next GC who shows up. You build the market and someone else cashes in.
The Master GC Solution
One Region. One GC. Zero Competition.
When a New England homeowner lands on The ADU Exchange, explores feasibility, browses blueprints, and clicks "Easy Solution — build it for me," they're routed to exactly one GC. In your region, that GC is you.
The Territory Map — Live
Forty Territories. Six States. About 100,000 Parcels Each.
New England has 1,603 municipalities and roughly 3.91 million ADU-potential parcels. We divided all of it into forty territories, and only one Master GC holds each one. Click any territory for its exact parcel count, market data, tier, and full fee schedule.
Every Master GC territory is defined by real municipal boundaries. Click any region on the map for parcel counts, municipality lists, and current availability. Available territories lock the moment a GC is approved and subscribed.
See one you want? Lock it before someone else does.
Territories lock the moment a GC is approved and subscribed from $399/mo. First come, first served. Month-to-month — no long-term contract. Founding rates: your monthly rate is locked for as long as your membership stays active. These rates will not last, and rates on unclaimed territories can rise at any time.
The New England ADU Window
The Regulatory Wave Has Already Landed.
Three recent policy shifts have transformed the New England ADU market from "maybe someday" to "by right, today." The builders already positioned when homeowners start asking will own the decade.
Massachusetts
The Affordable Homes Act
Massachusetts now allows ADUs by-right on single-family lots statewide — no special permit, no variance dance. Every SFH parcel in MA is a candidate overnight.
MassHousing
ADU Loan Program
Launched March 2026. Up to $250,000 at a fixed 5.25% for eligible homeowners. The financing barrier to building — historically the #1 project killer — just came down.
MHP
$10M ADU Incentive Program
The Massachusetts Housing Partnership is actively incentivizing ADU construction through a $10M grant and subsidy program aimed at accelerating deployment statewide.
The Math Is Already in Your Favor
Roughly 98,250 parcels per Master GC territory on average.
Membership Tiers
Founding Master GC Rates · Locked for the First 40
These rates will not last. They apply only while a territory sits unclaimed. Once a territory is awarded, its founding rate goes with it.
Three Tiers. Each Locks Your Region.
Tier is set by territory, not by negotiation
A flat monthly subscription locks your exclusive regional Master GC status. Higher tiers come with stronger ecosystem placement and dedicated marketing support — but every tier guarantees the same core: no other GC can claim your region. These are Founding Master GC rates: the first forty GCs lock today's rate for as long as their membership stays active. Rates for unclaimed territories can rise at any time, without notice. Yours cannot.
Standard Territory
Founding Rate · Locked
Value-market regions · 18 across New England
- Exclusive regional lock
- All Easy Solution referrals in region
- Master Certified Builder badge
- Detached build $4,350–$3,750 (volume tiered)
- Conversion build 3% of contract ($1,750 min, $3,950 max)
- Includes PVD, HTF, BPV, NHV, Bangor & more
Plus Territory
Founding Rate · Locked
Growth-market regions · 11 across New England
- Exclusive regional lock
- All Easy Solution referrals in region
- Master Certified Builder badge
- Detached build $5,200–$4,600 (volume tiered)
- Conversion build 3% of contract ($1,750 min, $3,950 max)
- Includes Merrimack Valley, Worcester, Portland, Bristol East & West & more
Premium Territory
Founding Rate · Locked
Premium-market regions · 11 across New England
- Exclusive regional lock
- All Easy Solution referrals in region
- Master Certified Builder badge
- Detached build $6,050–$5,450 (volume tiered)
- Conversion build 3% of contract ($1,750 min, $3,950 max)
- Includes Boston, North Shore, Cape, MetroWest, Plymouth, South Shore, Newport & Gold Coast
The Economics, Paper-Napkin Simple
10 ADU Builds in a Year:
Industry-average GC marketing burns 8–15% of revenue — on 10 builds at $175K each, that's $140K–$262K/year just to land jobs. Master GC all-in (monthly rate + detached build fees across all 3 tiers at high-volume rates) is roughly $42K–$60K/year, and less again in a conversion-heavy year, since conversions are billed at 3% of contract with a $3,950 cap rather than the set detached fee. Same revenue. Less than half the acquisition cost. And the leads come warm, not cold.
The Partnership Advantages
Eight Reasons This Isn't Just Another Directory.
The Master GC Partnership exists to make you the recognized ADU authority in your region — not to list you beside a hundred others. Every benefit is engineered toward that single outcome.
Top of the Ecosystem in Your Region
The ADU Exchange is a full-stack Ecosystem: homeowner tools, feasibility center, blueprint marketplace, financing vault, legal courthouse, real estate affiliate center, trades portal. As Master GC, every homeowner who enters that funnel and wants a turnkey build gets routed to you.
Exclusive "Easy Solution" Referrals
Homeowners who click "Easy Solution — build it for me" have already explored feasibility, browsed blueprints, and reviewed financing. They're ready. They get connected directly to you. No cold calls, no tire kickers.
Premium Branding & Placement
Featured as "Master Certified Builder" with exclusive badge placement on the homepage, trades portal, marketing emails, social channels, and partner-facing materials. Your logo. Your name. Front and center.
Access the Full Trades Network
Our trades portal spans 10 construction aisles — electricians, plumbers, HVAC, framers, and more. As Master GC you pull from the whole network to staff crews and fill scope gaps on any project.
Dedicated Account Manager
A single point of contact from The ADU Exchange. Priority support, direct referral coordination, and a partner with skin in the game — invested in helping you close and build more projects.
Predictable Pricing. No Surprises.
A transparent monthly rate locks your territory. The build fee follows the build: a set fee on detached structures that scales down with your annual volume, and 3% of contract on conversions of existing space, floored at $1,750 and capped at $3,950. Every territory's tier and full fee schedule is on the interactive map — no hidden costs, no negotiation, no profit-sharing.
ADU Exchange University Access
Full access to ADU Exchange University — courses, code guides, zoning resources, and New England-specific ADU training. Keep you and your team sharp on the latest regulations and build strategies.
Protected Pipeline
Your region is locked. While you hold active Master GC status, no other GC can be awarded the same territory. The longer you hold, the stronger your position becomes as the recognized ADU authority in your market.
Membership & Project Economics
Two-Part Pricing. The Build Fee Follows the Build.
Part 1 is the monthly rate that holds your territory: $399, $449 or $499, set by territory tier. Part 2 is a per-project build fee, charged only when a project we originate goes to contract.
That build fee is not one number, because a new detached structure and a basement conversion are not the same job. Detached builds pay a set fee that steps down with your volume. Conversions of existing space pay 3% of the contract, floored at $1,750 and capped at $3,950. The cap is deliberate: a conversion should never cost you more than a brand new detached structure. No hidden fees, no profit-sharing, no surprises.
Detached structure
A new detached ADU or new accessory structure. Flat fee by tier, stepping down at 6+ and 11+ builds a year.
Conversion of existing space
Basement, attached or in-law, existing garage, above-garage, attic. Smaller job, smaller fee.
Standard Tier — $399/mo
Detached: $4,350 / $4,050 / $3,750 per build at 1–5 / 6–10 / 11+ builds per year. Conversion: 3% of contract, $1,750 min, $3,950 max. Value-market territories.
Plus Tier — $449/mo
Detached: $5,200 / $4,900 / $4,600 per build at 1–5 / 6–10 / 11+ builds per year. Conversion: 3% of contract, $1,750 min, $3,950 max. Growth-market territories.
Premium Tier — $499/mo
Detached: $6,050 / $5,750 / $5,450 per build at 1–5 / 6–10 / 11+ builds per year. Conversion: 3% of contract, $1,750 min, $3,950 max. Premium-market territories.
Path A example — Detached ADU (Plus Tier · mid-volume)
Path B example — Garage Conversion (Standard Tier)
Detached build fees decrease as your annual detached volume increases (1–5 / 6–10 / 11+ per year). Conversion fees are 3% of the signed construction contract, with a $1,750 minimum and a $3,950 maximum per project, and do not carry a volume step-down. The maximum sits below the lowest detached build fee, so a conversion never costs more than a new detached structure. A build fee applies only to a project the Ecosystem originates, and only at contract. Nothing is charged on work you source yourself. If a detached structure is any part of the scope, the project is treated as detached. Click any territory on the map above for its tier and full schedule. All terms are documented in the Master GC membership agreement.
Conversion fee, worked
The floor binds below $58,333. The cap binds above $131,667. Straight 3% in between.
5
Steps
48h
Review
$0
Upfront
M2M
Contract
The Process
From Application to Your First Referral.
Apply & Get Vetted
Submit your application. Our team reviews your GC license, insurance, portfolio, and ADU or residential build experience. Selective by design.
Negotiate Your Terms
Once approved, we align on territory boundaries and tier confirmation, and we walk the build fee schedule with you: the set fee on detached structures, and 3% of contract on conversions. Everything transparent, no hidden fees. Tier is set by territory, not by negotiation.
Subscribe & Lock Your Region
After acceptance, your membership activates your exclusive regional territory. As long as you are active and holding the standard, no other GC can be awarded Master status in your area.
Get Featured Everywhere
Your company goes live across The ADU Exchange — homepage, trades portal, marketing emails, social channels. You become the promoted builder for your region.
Receive Referrals & Build
Homeowners in your region who choose the Easy Solution are connected to you. Close the deal, start the project, the referral share kicks in on start. That's it.
The Full Ecosystem
You're Joining an Ecosystem, Not a Directory.
The Master GC Partnership sits at the apex of a complete ADU Ecosystem that drives homeowners toward building decisions. Every department funnels qualified intent to you.
Homeowner Central
Feasibility tools, the $2,500 DIY Planner, design browsing, and the Easy Solution funnel — all driving homeowners toward building decisions.
ExploreTrades Portal
Ten construction aisles of verified subs — your source for crew building and the Ecosystem homeowners already browse.
ExploreBlueprint Marketplace
ADU designs homeowners browse before choosing to build — creating demand that flows directly to you.
ExploreThe Bank Vault
Financing partners, MassHousing ADU loans, HELOCs — removing the #1 barrier to homeowner project kickoff.
ExploreThe Courthouse
Legal, permitting, and insurance guidance that gives homeowners the confidence to move forward into a build.
ExploreADU Exchange University
Courses on code, zoning, and building ADUs in New England. Keeps homeowners educated and motivated — and keeps your team sharp.
ExploreFrequently Asked
The Questions Every Serious GC Asks First.
Each of the 40 geographic regions across our New England coverage area is assigned to exactly one Master Certified GC. Boundaries are defined during onboarding using real municipal lines. While you hold active Master GC status, no competing GC can be awarded the same territory — regardless of tier they apply for.
Each tier corresponds to a territory's market value and earnings potential — not a feature menu the GC chooses from. Standard ($399/mo) covers value-market regions across New England (18 territories). Plus ($449/mo) covers growth-market regions (11 territories — including Merrimack Valley, Worcester, Portland, and the Bristol counties). Premium ($499/mo) covers premium-market regions (11 territories — Boston Metro, the North Shore, Cape & Islands, MetroWest, Plymouth, South Shore, Newport, and Connecticut's Gold Coast). Every tier guarantees the same core: exclusive regional lock, all Easy Solution referrals in your territory, the Master Certified Builder badge, and ecosystem-wide branding placement.
Master GC has two transparent components: a flat monthly territory rate ($399, $449, or $499 depending on territory tier), plus a per-project build fee charged at contract on projects we originate.
The build fee depends on what is being built. A new detached structure carries a set fee that decreases as your annual detached volume increases, ranging from $3,750 (Standard tier, 11+ builds/yr) up to $6,050 (Premium tier, 1–5 builds/yr). A conversion of existing space (basement, attached or in-law, existing garage, above-garage, attic) is 3% of the signed construction contract, with a $1,750 minimum and a $3,950 maximum per project. The maximum sits below the lowest detached fee, so a conversion never costs more than a new detached build.
No profit-sharing. No fee at all on work you source yourself. Every territory's tier and complete fee schedule is visible on the interactive map — click any region to see exactly what you'd pay before you commit.
Homeowners who have actively engaged with The ADU Exchange, explored feasibility, reviewed designs, investigated financing, and then chosen the Easy Solution — build it for me option. These aren't list-rented cold leads. They're intent-verified homeowners ready for a professional to handle the build.
Yes. Every tier — Standard ($399), Plus ($449), Premium ($499) — is month-to-month. If you cancel, your exclusive regional territory becomes available for another GC to claim. Your tier is determined by the market value of your territory, but if you wish to discuss tier adjustments or multi-territory packages, contact your account manager.
Every one of the first forty memberships carries a Founding Master GC rate: the monthly rate you sign at is locked for as long as your membership remains active. If you cancel and your territory is later re-awarded, it may be re-listed at a higher prevailing rate. Founding rates will not last: they apply only while a territory sits unclaimed, and rates on unclaimed territories can rise at any time, without notice. The rate you see today is the lowest that territory will ever be.
Valid GC license in the state(s) of your territory, appropriate general liability and workers' comp coverage, and demonstrated ADU construction experience or comparable residential build history. Every application is reviewed. This is a selective program designed for contractors who deliver quality work under their own license.
Yes. Each territory you want to lock requires its own monthly subscription at the tier rate of that territory. Two adjacent Standard regions would be $399 + $399 = $798/mo total, for example. Volume discounts and multi-territory packages are available for GCs locking 5+ regions — contact us during onboarding to discuss enterprise terms.
Applications Open Now
Your Region Won't
Stay Open Forever.
Forty territories. Six states. About 100,000 ADU-potential parcels behind each one. One GC per territory, ever. Once a territory is awarded and locked, it is gone for as long as that GC stays active.
A territory is not simply purchased. We review licensing, insurance, reputation, ADU experience, homeowner care, and capacity before acceptance. We would rather leave a territory open than fill it with the wrong contractor.
Founding rates will not last · Locked for the first 40 · Never increases while your membership stays active
The application takes about 25 minutes and should be completed by the owner or a named principal. Submitting an application does not create a membership, reserve or grant a territory, or guarantee acceptance, exclusivity, or project volume. Territory is locked only after approval and an executed Master GC membership agreement. Prefer paper? Download the PDF.