Vermont Zoning Atlas

Vermont Zoning Atlas

Mapping zoning regulations across all 255 Vermont towns to build better places and create homes for the next generation of Vermonters.

255 Towns & Cities
647,064 Population (2023)
1,755 Zoning Districts Mapped
11 Regional Planning Commissions

The Homes We Need vs. What We Have

Vermont faces a housing challenge: the types of homes our zoning allows don't match what Vermonters need. Many towns restrict housing to single-family homes on large lots, making it difficult to build homes in walkable places—apartments near downtown, duplexes in village centers, or accessory dwelling units that help families age in place.

Vermont is unique. Unlike most states where counties control zoning, Vermont grants each of its 255 towns the authority to create its own bylaws. Each municipality crafts rules about what can be built, where, and how—dividing their land into zoning districts with specific regulations.

1

Planning Commission

Drafts zoning bylaws with community input

2

Public Hearing

Citizens review and comment on proposals

3

Australian Ballot

Voters approve or reject changes at Town Meeting

4

Implementation

Zoning Administrator enforces adopted regulations

Fair Housing Requirement: Vermont law (24 VSA § 4412) requires municipalities to ensure zoning regulations provide reasonable opportunity for all housing types and don't have discriminatory effects.

Vermont's Housing Shortage

Vermont needs more homes. The state's Housing Needs Assessment shows a significant gap between available housing and what Vermonters can afford. Population has grown slowly over decades, but housing production hasn't kept pace, driving up costs and limiting opportunities.

Zoning is a major factor. Regulations that require large lot sizes, prohibit apartments and multi-family homes, or make accessory dwelling units difficult to build all limit housing production. When only expensive housing types are allowed, working families, young people, and seniors have fewer options to stay in Vermont.

Understanding Housing Types: What the Atlas Tracks

The Vermont Zoning Atlas maps what types of housing each district allows. Understanding these housing categories is essential for interpreting the data and identifying where incremental zoning reforms could expand opportunities.

Data Fields in the Atlas

For each of Vermont's 1,755 zoning districts, the atlas documents regulations for these key housing types:

1-Family Homes

One dwelling unit on one lot. The most common housing type in Vermont. The atlas tracks whether single-family homes are permitted by right, require a conditional use permit (public hearing), or are prohibited. We also document minimum lot size, frontage, and setback requirements.

2-Family (Duplexes)

Two units in one building or on one lot. Traditional Vermont housing found in villages and mill towns. Duplexes can look like large single homes (side-by-side or up-down units) but provide naturally affordable rentals. Often face more restrictions than single-family homes.

3-Family (Triplexes)

Three units in one building. Part of the "missing middle" housing spectrum. Triplexes fit residential neighborhoods but provide density. Many towns require conditional use permits or prohibit them entirely, even in village centers.

4+ Family (Multi-Family)

Four or more units—apartments. Essential for workforce and affordable housing but heavily restricted. The atlas shows where apartments require large lot sizes, connection to municipal utilities, or are prohibited. Many towns allow only in limited mixed-use or commercial zones.

Accessory Dwelling Units

Secondary units on the same lot as a primary residence. Can be attached (garage apartment) or detached (backyard cottage). Vermont law encourages ADUs, but towns regulate size limits, parking requirements, and owner-occupancy rules. Atlas documents ADU-specific provisions.

Elderly & Affordable Housing

Housing with use restrictions. Some districts allow higher density or smaller lots if restricted to seniors (62+) or income-qualified residents. The atlas indicates where these special provisions exist and what additional allowances they provide.

Three Levels of Permission

For each housing type in each district, zoning regulations fall into three categories:

Permitted

Allowed "by right"—no special approval needed beyond building permits. Property owners can build if they meet dimensional requirements (lot size, setbacks, etc.).

Public Hearing Required

Requires conditional use permit or special exception. Project goes before planning board or zoning board for discretionary review. Adds time, cost, and uncertainty.

Prohibited

Not allowed in this district. Would require zoning amendment (citizen vote at Town Meeting) to permit. Represents the strongest barrier to housing.

How to Use the Interactive Map: Below, you can select a housing type (1-family through 4+ family) and the map will color-code all 1,755 districts based on whether that housing type is permitted, requires a public hearing, or is prohibited. Click any district for details.

How We Built the Atlas

Creating a comprehensive statewide zoning atlas requires meticulous work. Throughout 2023-2024, zoning bylaws and maps from across Vermont were collected, interpreted, and synthesized into a unified database cataloging all 1,755 zoning districts.

Data Collection Process

1

GIS Mapping

Collected GIS files from all 11 Regional Planning Commissions covering their member municipalities

2

Bylaw Review

Read and coded zoning regulations for each district, documenting housing allowances and dimensional requirements

3

Database Creation

Synthesized regulations into standardized fields suitable for analysis and mapping

4

Verification

Cross-checked data with RPCs and municipal officials for accuracy

What's Included: For each district, the atlas documents whether 1-family through 4+-family housing is permitted, requires a public hearing (conditional use), or is prohibited. Additional fields capture minimum lot sizes, setbacks, accessory dwelling unit rules, affordable and elderly housing provisions, and other key regulations.

Data Sources: GIS shapefiles provided by Vermont's 11 Regional Planning Commissions; municipal zoning bylaws accessed through town websites, clerks' offices, and RPC archives; Vermont State Statute Title 24 provisions.

Data Transparency: This is a community-built, open-source dataset. All data and methodology are available on our GitHub repository. We welcome corrections and updates from municipal officials and community members.

What We Found: Vermont's Zoning Patterns

The Vermont Zoning Atlas reveals clear patterns in how our communities regulate housing. These findings help identify where reforms could create more housing opportunities while maintaining community character.

Single-Family Housing

Single-family homes are widely permitted across Vermont. The vast majority of Vermont's zoned land allows single-family housing by right, reflecting the state's traditional settlement patterns. However, many districts require large lot sizes (1+ acres) that increase land costs and limit development in village centers and near existing infrastructure.

~90%
of districts permit single-family homes
~60%
require lots of 1 acre or larger

Duplexes and Triplexes: The "Missing Middle"

Two- and three-family homes face significant barriers. These traditional Vermont housing types—common in village centers and mill towns—are often prohibited or require conditional use permits in many districts. This "missing middle" housing provides naturally affordable options between single-family homes and larger apartments.

Key Finding: Duplexes require public hearings or are prohibited in many residential districts, making them difficult to build even where they would fit the neighborhood character. Streamlining approval for 2-3 family homes in village zoning districts could help communities grow while preserving walkability.

Multi-Family Housing: Four Units and Above

Apartments are heavily restricted. Four-or-more-unit buildings (apartments) face the most significant zoning barriers. Many towns prohibit multi-family housing entirely or allow it only in limited commercial/mixed-use zones, often far from services and transit.

~35%
of districts permit 4+ family by right
~25%
require public hearings
~40%
prohibit multi-family housing

Accessory Dwelling Units (ADUs)

ADU regulations vary widely. Vermont law encourages but does not mandate ADUs. Some towns embrace them as "granny flats" helping families age in place, while others restrict them with owner-occupancy requirements, size limits, or prohibitions on detached ADUs.

Opportunity: Standardizing ADU allowances and reducing permitting barriers could create hundreds of new rental units annually without changing neighborhood character. ADUs provide income for homeowners and naturally affordable rentals.

Lot Size Requirements: A Major Cost Driver

Large minimum lot sizes increase land costs, promote sprawl, and make infrastructure more expensive. Many Vermont towns require 1-3 acre minimums even in areas with municipal water and sewer service where smaller lots would be appropriate.

Why It Matters: Requiring a $100,000 lot instead of a $50,000 lot directly increases the minimum price of a home. Smaller lots in walkable areas support local businesses, reduce driving, and make homeownership more accessible.

Note: Specific percentages shown are illustrative. Detailed statistical analysis of the Vermont Zoning Atlas dataset is ongoing. Use the interactive map to explore actual regulations in specific districts.

Regional Focus: Chittenden County

Vermont's most populous region faces the state's most acute housing shortage. Let's examine how zoning affects housing availability in the Burlington metropolitan area—home to 168,000 residents across 19 municipalities.

Why Chittenden County?

This region contains Vermont's largest job market, the University of Vermont, the state's main hospital complex, and growing tech sector. Yet housing production hasn't kept pace with demand, creating:

What Zoning Shows

Single-family homes dominate allowances: Like the rest of Vermont, single-family homes are permitted widely, but many town require large lots even in villages close to jobs and transit.

Multi-family housing is limited: Several bedroom communities surrounding Burlington prohibit apartments entirely or restrict them to small overlay zones. This pushes all multi-family development into Burlington and a few surrounding towns, concentrating housing in limited areas.

Example: South Burlington

Vermont's second-largest city has significant commercial development but residential zoning that limits density. Much of the city requires 1-acre minimum lots, and multi-family housing is restricted to specific zones. Allowing duplexes and triplexes by right in more residential districts could create hundreds of units near jobs at the city's major employers.

Example: Williston

A major commercial corridor along Route 2 with big-box retail and office parks, but residential zoning heavily favors large-lot single-family homes. Workers at Williston's businesses struggle to find housing nearby, increasing traffic and sprawl. Mixed-use zoning allowing residential above retail could add workforce housing.

Reform Opportunities

Chittenden County towns could take several incremental steps based on the atlas findings:

Policy Note: These reforms don't force development—they remove barriers for property owners who want to build housing. Market forces and local review processes still shape what gets built.

Regional Planning Commissions: Partners in This Work

Many Vermont towns don't have professional planning staff. To support local planning efforts, the state created 11 Regional Planning Commissions (RPCs). These organizations provide technical assistance, coordinate regional planning, help towns update their bylaws, and offer GIS mapping services.

RPCs have been essential partners in creating this atlas, providing zoning maps and local expertise for their member municipalities.

Addison County RPC
ACRPC
23 municipalities • ~37,000 residents

www.acrpc.org

Bennington County RPC
BCRC
19 municipalities • ~36,000 residents

www.bcrcvt.org

Chittenden County RPC
CCRPC
19 municipalities • ~168,000 residents

www.ccrpcvt.org

Central Vermont RPC
CVRPC
23 municipalities • ~59,000 residents

centralvtplanning.org

Lamoille County PC
LCPC
13 municipalities • ~26,000 residents

www.lcpcvt.org

Mount Ascutney RPC
MARC
24 municipalities • ~32,000 residents

marcvt.org

Northeastern Vermont Dev. Assoc.
NVDA
51 municipalities • ~62,000 residents

www.nvda.net

Northwest RPC
NWRPC
20 municipalities • ~49,000 residents

www.nrpcvt.com

Rutland RPC
RRPC
27 municipalities • ~59,000 residents

www.rutlandrpc.org

Two Rivers-Ottauquechee RPC
TRORC
30 municipalities • ~47,000 residents

www.trorc.org

Windham RPC
WRC
27 municipalities • ~45,000 residents

windhamregional.org

Explore the Interactive Atlas

Use the map below to explore Vermont's 1,755 zoning districts. Click any district to see what housing types are allowed, minimum lot sizes, and other regulations. Compare different towns or search for patterns across regions.

Community-Built Dataset: This data was collected in 2023-2024. Zoning regulations may have changed. Always verify with your local zoning administrator or town office before making development decisions.
Permitted
Requires Public Hearing
Prohibited
No Data

Zoning for Great Neighborhoods

This atlas supports Vermont's "Zoning for Great Neighborhoods" initiative, led by the Department of Housing and Community Development (DHCD) in partnership with the Congress for the New Urbanism. The initiative helps municipalities make incremental reforms to remove unnecessary barriers to creating more homes.

Zoning rules can present barriers to effective planning, impairing our ability to achieve important policy objectives like community integration, climate resilience, transportation access, and affordable housing development. By mapping what's currently allowed across all 255 towns, the Vermont Zoning Atlas helps:

Resources for Towns

Vermont provides extensive resources for municipalities looking to update their zoning:

Next Steps: Using This Atlas

The Vermont Zoning Atlas does not prescribe specific policy solutions or take a position on local versus state authority over land use. Instead, we provide transparent data to inform conversations about housing in Vermont.

How Communities Can Use This Data

For Municipal Officials

Compare your town's zoning to similar communities. See what neighboring towns allow. Use the atlas to identify quick wins—small changes that could meaningfully expand housing opportunities while maintaining community character.

For Planning Commissions

Ground bylaw updates in statewide data. When considering changes to multi-family allowances or lot size requirements, see how your proposals compare to the rest of Vermont. RPCs can help analyze your local data.

For Researchers & Advocates

All data is open-source and available for download. Conduct statistical analyses, create visualizations, or integrate with other datasets. Help us improve the atlas by submitting corrections and updates.

For Citizens

Understand what's allowed in your town. Attend planning commission meetings informed by data. Advocate for specific reforms grounded in evidence about what works elsewhere in Vermont.

Common-Sense Reforms Worth Discussing

Based on atlas findings and national research on housing policy, communities may want to consider:

Important: These are conversation starters, not mandates. Every Vermont town has unique character, needs, and priorities. Local decision-making remains paramount—but should be informed by data.

Keeping the Atlas Current

Zoning regulations change regularly. Our goal is to update the atlas annually, but we need community help. If your town has updated its bylaws, please let us know. Municipal clerks, planning staff, and RPC representatives can submit updates through our GitHub repository or contact form.

The Vermont Zoning Atlas is part of the National Zoning Atlas Project, led by Professor Sara Bronin.

About This Project

The Vermont Zoning Atlas brings together zoning laws from 1,755 districts across all municipalities. Without this tool, one would have to read thousands of pages of dense legal code to answer simple questions about where and what types of housing can be built.

Data Disclaimer: The user should not rely on, nor is there any guarantee of, the accuracy or completeness of the data contained in the Vermont Zoning Atlas. The data presented should be considered as informational only for research and advocacy purposes. The atlas team assumes no liability for errors, omissions, or inaccuracies. Always verify current regulations with your local zoning administrator or town office before making development decisions.

If you use this data in publications, please cite: https://doi.org/10.5281/zenodo.11508694

Project Team & Partners

The Vermont Zoning Atlas is a collaborative effort led by the University of Vermont in partnership with Vermont's Regional Planning Commissions, the Vermont Department of Housing and Community Development, and community volunteers.

Funding Support: This project was supported by the University of Vermont, Vermont Housing Finance Agency, and other partners committed to data-driven housing policy.

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