Zoning, building permits and septic rules in Town of Pelham, New Hampshire

Town of Pelham’s own rules

• Owner-builder exemptionConditional

  Homeowner electrical permits inside Pelham town limits.

  • Homeowner electrical permits are unavailable for pools, hot tubs/spas, service-entrance replacements or upgrades, whole-house generators, solar photovoltaic systems, duplexes, and ADUs; these permits issue only to NH Licensed Master Electricians.

  “Per decision of the Electrical Inspector, homeowner electrical permits are not permitted for swimming pools, hot tubs/spas, service entrance replacements or upgrades, whole-house generators, solar photovoltaic systems, duplexes, or Accessory Dwelling Units (ADUs). Permits for these projects will only be issued to NH Licensed Master Electricians.”

• Building code adoptedAdopted (with conditions)

  Construction subject to Town of Pelham building services.

  • The town states that the 2021 International Building Code has applied since February 25, 2025.

  building code: 2021 International Building Code

  “As of February 25, 2025, the Town of Pelham is under the 2021 International Building Code.”

• Certificate of occupancyRequired

  Residential and commercial buildings proposed for occupancy inside Pelham town limits.

  • Final building, electrical, plumbing, and driveway inspections are listed as requirements for an occupancy permit.

  “Any permit to occupy a residential or commercial building requires the following: 1. Final Building Inspection 2. Final Electrical Inspection 3. Final Plumbing Inspection 4. Final Driveway Inspection (Highway Safety Committee 635-7811)”

• Local zoningPresent (with conditions)

  Land inside Pelham town limits.

  • Uses, occupancy, erection, movement, and alteration must conform to the zoning regulations for the district where located.

  “No building or land shall hereafter be used or occupied and no building or part thereof shall be erected, moved or altered unless in conformity with the regulations specified in this Ordinance for the district in which it is located.”

• Zoning districtsPublished (with conditions)

  Land inside Pelham town limits.

  • Districts are shown and defined on the Official Zoning Map.

  “For the purposes of this Ordinance, the Town of Pelham is divided into the following districts as shown and defined on the Official Zoning Map.”

• Accessory dwellingsAllowed (with conditions)

  Accessory dwelling units on qualifying single-family residential lots inside Pelham town limits.

  • An ADU may have no more than two bedrooms or 1,000 square feet of living area; one ADU is allowed per lot; NHDES-approved septic capacity is required; attached ADUs require Zoning Administrator conditional-use approval and detached ADUs require Planning Board conditional-use approval.
  • Detached ADUs require a 1.5-acre lot with at least 45,000 square feet of non-hydric soils, a qualifying septic design, no naturally occurring slopes over 20%, and dimensional compliance.

  maximum bedrooms: <= 2 bedrooms (ADU) · maximum living area: <= 1000 square feet (exclusive of entryways)

  “Accessory dwelling units shall not contain more than two bedrooms and shall not exceed 1000 (one thousand) square feet of living area, exclusive of entryways.”

• Agricultural exemptionConditional

  Agricultural and forestry practices subject to Pelham's stormwater-management rules.

  • The exemption is only for agricultural and forestry practices conducted in accordance with New Hampshire Department of Agriculture published practices.

  “The following activities are considered exempt from the stormwater management requirements in these regulations: a) agricultural and forestry practices in accordance with the NH Department of Agriculture published practices.”

• Subdividing landRegulated (with conditions)

  Subdivision of land inside Pelham town limits.

  • Before subdivision, sale or lease of subdivision land, or commencement of streets or utility construction, the plat must be approved, signed by the Planning Board Chair, and recorded at the Hillsborough County Registry of Deeds.

  “No subdivision of land shall occur, and no land in any subdivision shall be sold or leased, and no streets or utility construction shall commence unless until a subdivision plat, prepared in accordance with the requirements of these Regulations, has been approved and a final plat has been signed by the Chair of the Pelham Planning Board and subsequently recorded at the Hillsborough County Registry of Deeds.”

• Permit feesPublished (with conditions)

  Building permits issued by Pelham town.

  • The schedule was adopted by the Board of Selectmen on February 10, 2026. Minimum building-permit fees are listed separately for residential and commercial permits.

  minimum residential building permit fee: 50 USD · minimum commercial building permit fee: 150 USD

  “Minimum Total Building Permit Fee Residential: $50.00 Commercial: $150.00”

• Permit processPublished (with conditions)

  Building-permit applicants inside Pelham town limits.

  • Applicants must provide a completed application; property-owner signature or contractor authorization; drawings; and, for new buildings, additions, renovations, or thermally isolated sunrooms, a New Hampshire Residential Energy Code Application.

  “Your application for Building Permit should include the following: 1.) Building Permit Application filled out in its entirety. Anything that is not applicable should be filled in with “N/A”. The application must be signed by the owner of the property, or the contractor must have a signed agreement with the homeowner authorizing them to pull permits on their behalf.”

Rules another office applies inside Town of Pelham

Town of Pelham does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

• Minimum lot sizeSpecified

  Single-family dwellings in Pelham's Residential District.

  • The dimensional table also specifies minimum 200-foot frontage and the listed building setbacks.

  minimum lot size: >= 43560 square feet (single-family dwelling)

  “Single-Family Dwelling 43,560 200' 30' 15'**** 15'****”

• SetbacksSpecified

  Single-family dwellings in Pelham's Residential District.

  • The building-permit instructions state that setbacks are measured from the proposed structure to property lines.

  front setback: >= 30 feet (residential structure) · side setback: >= 15 feet (residential structure) · rear setback: >= 15 feet (residential structure)

  “Residential setbacks are 30’ from the front property line, 15’ from the side property lines and 15’ from the rear property line”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Pelham or Hillsborough County directly.

• Building permit — Residential construction inside Pelham town limits.
• Minimum dwelling size — Single-family dwellings in Pelham's Residential District.
• Lot coverage — Residential land inside Pelham town limits.
• Building height — Single-family dwellings in Pelham's Residential District.
• Living in an RV — Long-term RV occupancy on private land inside Pelham town limits.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.