Can I build a duplex by right in Burlington, Vermont?

In most of Burlington, yes. The city is almost entirely served by municipal water and sewer, which triggers Vermont's 2023 HOME Act duplex-by-right mandate, and Burlington has separately pursued its own Neighborhood Code reforms to broaden allowed housing types. Confirm the specific parcel's zoning district and utility service before assuming by-right status.

What is Burlington's Comprehensive Development Ordinance (CDO)?

The CDO is Burlington's zoning ordinance, covering base residential and commercial districts plus special districts like Downtown, Waterfront, and Institutional. It is administered by the Department of Permitting and Inspections, with the Development Review Board handling discretionary approvals.

Does Act 250 apply to projects in Burlington?

It can. Act 250 is a separate, statewide permitting layer under Title 10 of the Vermont Statutes Annotated that applies to qualifying larger developments regardless of local CDO approval, though Vermont's 2024 Act 250 modernization law eased jurisdiction for projects inside existing town and village centers, which covers most of urban Burlington.

Burlington, Vermont · city zoning districts · 11 districts

Burlington, VT zoning map & districts

Burlington's zoning is set out in the Comprehensive Development Ordinance (CDO), administered by the city's Department of Permitting and Inspections with Development Review Board approval required for larger or discretionary projects. Vermont's largest city has spent the past several years actively liberalizing its residential code — a citywide 'Neighborhood Code' rewrite effort pushed to legalize duplexes and small multi-unit buildings more broadly across traditionally single-family neighborhoods, layering on top of the state's own 2023 HOME Act duplex-by-right mandate for lots with municipal water and sewer. Because Burlington is served by municipal utilities almost everywhere in the city, that state-level duplex allowance effectively applies across nearly the entire built-up area.

The code Burlington Comprehensive Development Ordinance (CDO)

Burlington zoning map

The Burlington Department of Permitting and Inspections publishes the CDO text and the official zoning map; parcel-level zoning is best confirmed through the city's online GIS mapping portal alongside the department directly.

There is no link to the official map here yet — confirm current district boundaries directly with the Burlington planning or zoning department.

A published summary is never the authority. The adopted ordinance and the city's official zoning map govern, and both change — verify the district and every standard on your parcel before you rely on it.

How zoning works in Burlington

The CDO also carries a mandatory Inclusionary Zoning ordinance requiring affordable units in qualifying larger residential developments, and it distinguishes the Downtown core and the Lake Champlain Waterfront as their own zoning districts with distinct design-review and height standards separate from the city's standard residential tiers. The formerly industrial South End, home to companies like Burton Snowboards, carries legacy industrial and enterprise zoning that has become a flashpoint between artist/maker-space preservation and redevelopment pressure. Any Act 250 thresholds under state law apply on top of CDO approval for qualifying larger projects.

Burlington zoning districts by family

The 11 district codes below are the ones that decide most projects in Burlington, grouped by what they are for rather than by the order the ordinance prints them.

Key districts in the Burlington Comprehensive Development Ordinance (CDO) — a curated reference, not the exhaustive list. Confirm against the current adopted code.
Code	District	What it is for
Residential 3 districts
RL	Residential - Low Density	Ground truth names this 'Low Density,' not 'Low Intensity.'
RM	Residential - Medium Density	Ground truth names this 'Medium Density,' not 'Medium Intensity.'
RH	Residential - High Density	Ground truth names this 'High Density,' not 'High Intensity.'
Mixed-use 2 districts
NAC	Neighborhood Activity Center	Missing family filled: no mixed-use district was previously listed.
NMU	Neighborhood Mixed Use	Missing major district added from ground truth.
Downtown / core 2 districts
FD5	FD5 Downtown Center	Missing major district added from ground truth.
FD6	FD6 Downtown Core	Confirmed current.
Industrial 1 district
ELM	Enterprise - Light Manufacturing	Missing family filled: no industrial district was previously listed.
Special purpose 3 districts
DW-PT	Downtown Waterfront - Public Trust	Confirmed current.
INST	Institutional	Confirmed current.
RCO-C	RCO - Conservation	Missing major district added from ground truth.

Burlington zoning — common questions

Can I build a duplex by right in Burlington, Vermont?: In most of Burlington, yes. The city is almost entirely served by municipal water and sewer, which triggers Vermont's 2023 HOME Act duplex-by-right mandate, and Burlington has separately pursued its own Neighborhood Code reforms to broaden allowed housing types. Confirm the specific parcel's zoning district and utility service before assuming by-right status.
What is Burlington's Comprehensive Development Ordinance (CDO)?: The CDO is Burlington's zoning ordinance, covering base residential and commercial districts plus special districts like Downtown, Waterfront, and Institutional. It is administered by the Department of Permitting and Inspections, with the Development Review Board handling discretionary approvals.
Does Act 250 apply to projects in Burlington?: It can. Act 250 is a separate, statewide permitting layer under Title 10 of the Vermont Statutes Annotated that applies to qualifying larger developments regardless of local CDO approval, though Vermont's 2024 Act 250 modernization law eased jurisdiction for projects inside existing town and village centers, which covers most of urban Burlington.

Working in Vermont? Get on the list.

The parcel layer lands in the order demand does. Illinois went first because that's where the deals were; the next state is decided by who tells us what they're trying to underwrite. Tell us where you're building and what you wanted to run — you'll hear from us when Vermont opens, and sooner if we need a test parcel.

Keep reading

← Vermont zoning — who holds the zoning power in Vermont, under which enabling statute, and the reforms that override local rules.

Other Vermont cities

The zoning reference → — every state, plus city-level district guides like this one.

Burlington zoning summaries on this page are provided for information, not legal advice. Confirm every project against the current adopted code for the jurisdiction.