Beta — site is under development, information may contain errors. Read disclaimer

Keene, NH Zoning Regulations & Building Permits

Last updated: Verified:

Key Zoning Facts

Planning Department
Keene Community Development(603) 352-5440
Building Code Edition
NH State Building Code (IBC/IRC based)
ADUs Allowed
Yes
Primary District
R Rural
Max Height
35 ft

Keene Zoning Overview

Keene is a city in Cheshire County, New Hampshire, with a population of approximately 23,409 (2020 Census). Keene serves as the county seat and regional center for southwestern New Hampshire. Land use and development are regulated through the city's zoning ordinance, administered by Keene Community Development.

Keene's zoning ordinance divides the city into multiple districts, ranging from the Rural (R) district requiring 2-acre minimum lots to the High Density (HD) district with 8,000 sq ft minimums and 45 ft height limits. The city also includes Commerce (C), Commerce Limited (CL), and Industrial (I) districts.

Key Zoning Districts

Keene's primary residential zoning districts include:

  • R (Rural) — Minimum 2 acre lots with 40 ft front, 25 ft side, and 30 ft rear setbacks. Maximum height of 35 ft.
  • LD (Low Density) — Minimum 30,000 sq ft lots with 30 ft front, 15 ft side, and 25 ft rear setbacks. Maximum height of 35 ft.
  • MD (Medium Density) — Minimum 12,000 sq ft lots with 25 ft front, 10 ft side, and 20 ft rear setbacks. Maximum height of 35 ft.
  • HD (High Density) — Minimum 8,000 sq ft lots with 20 ft front, 8 ft side, and 15 ft rear setbacks. Maximum height of 45 ft.

Commercial and industrial districts include:

  • C (Commerce) — General commercial district for a broad range of retail, office, and service uses
  • CL (Commerce Limited) — Limited commercial district with restrictions on use intensity
  • I (Industrial) — Manufacturing, warehousing, and related industrial uses

ADU Regulations (Accessory Dwelling Units)

New Hampshire state law (RSA 674:72-73) requires all municipalities to allow ADUs (Accessory Dwelling Units) as a matter of right on any property with a single-family dwelling. Keene must comply with this state mandate. Key points:

  • One ADU is permitted per single-family lot
  • The ADU may be attached to or detached from the primary dwelling (subject to local standards)
  • Municipalities cannot prohibit ADUs but may adopt reasonable regulations regarding size, parking, and other dimensional standards
  • Contact Keene Community Development for the city's specific ADU application requirements and any local dimensional standards

Building Code

Keene follows the NH State Building Code (RSA 155-A), which is based on the International Building Code (IBC) and International Residential Code (IRC). All construction must comply with the state building code.

Development Process

Development in Keene generally requires obtaining the appropriate permits from the city's planning and building departments. The process typically involves:

  1. Zoning Verification — Confirm that your proposed use is permitted in the applicable zoning district
  2. Site Plan Review — For commercial, multi-family, and certain other projects, submit a site plan to the Planning Board
  3. Building Permit — Apply for a building permit with construction documents
  4. Inspections — Schedule required inspections during construction
  5. Certificate of Occupancy — Obtain final approval before occupying the structure

For projects that do not conform to existing zoning, property owners may need to seek a variance or special exception from the Keene Zoning Board of Adjustment (ZBA).

Key Considerations

Before starting any development project in Keene, property owners should:

  • Verify the zoning classification of their property
  • Review setback, height, and lot coverage requirements for the applicable district
  • Check for any overlay districts or special regulations
  • Determine if the property is in a flood zone using FEMA's flood map service
  • Confirm whether HOA covenants or deed restrictions apply
  • Review the Keene Code of Ordinances for the full zoning text
  • Contact Keene Community Development at (603) 352-5440 for pre-application guidance

Disclaimer: This guide provides general information about zoning in Keene, NH and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations with Keene Community Development or the municipal code before making development decisions.

Regulatory Layers That Apply in Keene

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — New Hampshire

  • Building Code: NH State Building Code (RSA 155-A)
  • State ADU Override: Yes (NH RSA 674:72-73 requires municipalities to allow ADUs)
View New Hampshire zoning overview

County — Cheshire County

  • Role: Property records, tax assessment

City / Municipal

The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

Overlay Districts

No overlay districts identified.

Private Restrictions

  • HOA / CC&Rs common: Yes
  • Check HOA CC&Rs and deed restrictions for additional requirements.

Primary Zoning Districts

RRural
Min Lot
2 acres
Max Height
35 ft
Front Setback
40 ft
Side Setback
25 ft
Rear Setback
30 ft
LDLow Density
Min Lot
30,000 sq ft
Max Height
35 ft
Front Setback
30 ft
Side Setback
15 ft
Rear Setback
25 ft
MDMedium Density
Min Lot
12,000 sq ft
Max Height
35 ft
Front Setback
25 ft
Side Setback
10 ft
Rear Setback
20 ft
HDHigh Density
Min Lot
8,000 sq ft
Max Height
45 ft
Front Setback
20 ft
Side Setback
8 ft
Rear Setback
15 ft
CCommerce
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies
CLCommerce Limited
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies
IIndustrial
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies

ADU Rules in Keene

ADUs:Allowed

Permit Costs & Timelines

Permit Costs & Timelines

Specific permit fee schedules for Keene are available from the local planning department. Fees vary based on project type, scope, and valuation.

Check Keene permit fees →

Official Sources

Frequently Asked Questions

What zoning district is my property in Keene?
Check the Keene municipal code or contact Keene Community Development at (603) 352-5440 to determine your property's zoning district.
Can I build an ADU in Keene?
Yes. New Hampshire state law (RSA 674:72-73) requires all municipalities, including Keene, to allow one ADU on any lot with a single-family dwelling.
What building code does Keene follow?
Keene follows the NH State Building Code (RSA 155-A), which is based on the International Building Code (IBC) and International Residential Code (IRC).
Do I need a permit for home improvements in Keene?
Most structural modifications, additions, and changes of use require a building permit. Contact the Keene building department for specific requirements.