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Beautiful detached ADU with cedar shingles at sunset on the New England coast
🏛️ Free for All New England Municipalities

Your Building Department
Deserves Better Tools. Interactive Resources for ADU Permitting, Compliance & Community Engagement

Six purpose-built tools plus a comprehensive field guide — designed by municipal professionals, for municipal professionals. Reduce counter time, grow your tax base, and make ADU approvals safe, consistent, and fast.

6Interactive Tools
23Guide Sections
$0Cost to You
5minPer Assessment
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The Municipal Challenge

ADU Applications Are Surging.
Is Your Department Ready?

Massachusetts and Connecticut now mandate by-right ADU approval. Rhode Island, New Hampshire, Maine, and Vermont are following. Your building department is about to get a lot busier — and residents are watching.

01
🕐

Counter Time is Killing You

Your staff spends 30+ minutes per walk-in answering the same fee, zoning, and process questions. Our tools answer them instantly — online, 24/7 — before residents ever walk through the door.

02
💰

Revenue You're Leaving on the Table

Every unpermitted ADU is lost tax revenue, uncollected permit fees, and an uninspected structure that puts residents at risk. Legalization programs bring them into compliance — and onto the rolls.

03
⚖️

Legal Exposure Is Real

Inconsistent permit decisions, missing documentation, and opaque fee structures create legal liability. Standardized, transparent tools protect your municipality and your staff.

"The biggest risk isn't approving ADUs — it's being unprepared when the applications arrive."
— The ADU Exchange Municipal Advisory Team
The Toolkit

Six Tools. Zero Cost.
Immediate Impact.

Each tool solves a specific pain point in ADU administration. Embed them on your municipal website, use them at the counter, or bring them to your next Select Board meeting.

Interactive ToolStaff + Public

ADU Permit Fee
Calculator.

The number one question at every building department counter: "How much will this cost me?" This tool answers it instantly — with a complete fee breakdown customized to your municipality's actual rates.

Auto-calculates building permit, electrical, plumbing, gas, sewer, and Title V fees
Toggle-based: turn on/off fee categories that apply to your town
Print-ready summary homeowners can bring to the counter
Embeddable on any municipal website — no coding required
🧮 Open Fee Calculator →
theaduexchange.com/adu-fee-calculator
🧮
ADU Permit Fee Calculator
Building PermitElectricalPlumbingGasSewerTitle VImpact Fees
Interactive ToolElected Officials

Financial Impact
Estimator.

Selectmen and city councilors need numbers, not anecdotes. This tool generates a 5-year revenue projection in 30 seconds — with construction jobs created, enforcement savings, and legalization revenue included.

5-year property tax revenue projection with annual growth modeling
Construction jobs and local economic multiplier calculations
Enforcement cost savings from unpermitted ADU complaints
Seven auto-generated talking points for budget presentations
📊 Open Estimator →
theaduexchange.com/adu-financial-estimator
📊
Financial Impact Estimator
Tax RevenueJobs CreatedEnforcement SavingsTalking Points
AssessmentDepartment Heads

Municipal ADU
Readiness Scorecard.

How prepared is your building department for the wave of ADU applications? 30 yes/no questions across 6 categories give you a letter grade, a gap analysis, and a prioritized action plan — in 5 minutes.

Six categories: Zoning, Permitting, Infrastructure, Staffing, Public Info, Enforcement
Instant A-through-F grade with detailed gap analysis
Prioritized action items your department can implement immediately
Printable report for Town Administrator or City Manager review
📋 Take the Assessment →
theaduexchange.com/adu-readiness-scorecard
📋
Readiness Scorecard
ZoningPermittingInfrastructureStaffingPublic InfoEnforcement
FrameworkCode Enforcement

Amnesty &
Legalization Pathway.

Every town has them — unpermitted ADUs hiding in basements, garages, and attics. This step-by-step framework helps you bring them into compliance safely, expand the tax base, and reduce unsafe housing without creating political backlash.

Complete amnesty program framework with model ordinance language
Tiered penalty structure and reduced fee schedules
Life-safety inspection protocol prioritizing critical hazards
Community messaging templates that frame legalization as public safety
🏳️ View Framework →
theaduexchange.com/adu-amnesty-pathway
🏳️
Amnesty & Legalization
Model OrdinanceFee SchedulesInspection ProtocolMessaging
Public ResourceFair Housing

Multilingual
Homeowner Guides.

Language barriers shouldn't determine who gets to build an ADU. These printable fact sheets — in English, Spanish, Portuguese, Mandarin, and Haitian Creole — ensure Fair Housing compliance and equitable access for every resident in your community.

Five languages covering 95%+ of New England's non-English-speaking households
Complete ADU information: eligibility, costs, permit process, and rules
Print-ready for counter display or community outreach events
Customizable with your municipality name and building department phone
🌍 View Guides →
theaduexchange.com/adu-multilingual-guide
🌍
Multilingual Guides
EnglishEspañolPortuguês中文Kreyòl
The Complete Reference

Municipality
Field Guide.

The definitive playbook for building departments, zoning authorities, and municipal leaders. 23 sections covering every dimension of ADU administration — from first application to final inspection, from septic capacity to Fair Housing compliance.

Municipal Guide Track (45 min) for building commissioners and planners
Advanced Technical Track (2+ hrs) for code officers and inspectors
12 embedded interactive tools with real-time calculations
IRC 2021 compliant with MA/CT/RI/NH/ME/VT state-specific guidance
📖 Open the Field Guide →
01Why ADUs Matter Now
02The ADU Landscape
03State-by-State Laws
04Zoning Frameworks
05Permitting Workflow
06Building Code Deep Dive
07Wastewater & Septic
08Parking Standards
09Design Standards
10Fee Structures
11Inspection Protocol
12Enforcement Strategy
13Staff Training
14Public Information
15Technology Integration
16Inter-Agency Coordination
17Community Engagement
18Performance Metrics
19Implementation Roadmap
20Abutters' FAQ Template
21Code Amendment Tracker
22Financial Impact Estimator
23Multilingual Guides
📖

23 Sections

The most comprehensive ADU resource
for municipalities in New England

2,400+Lines
12Tools
6States

Ready to Modernize Your
ADU Program?

Every tool is free, every resource is ready to deploy, and your residents are already searching for answers. Give them — and your staff — the tools they deserve.