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

Town of Seabrook’s own rules

• Building permitRequired

  Construction, development, or alteration of a building, structure, or use of land inside Seabrook town.

  • Normal maintenance and emergency repairs are excepted.

  “no person or entity shall undertake any construction, development or alteration of any building, structure or use of land without a written building permit issued by the building inspector, unless such undertaking is for normal maintenance or emergency repairs.”

• Building code adoptedAdopted (with conditions)

  Buildings and structures constructed in Seabrook town.

  • The ordinance additionally incorporates the International Property Maintenance Code 2009 by reference.

  “all buildings, building components, and structures constructed in the town of seabrook shall comply with the state building code and state fire code.”

• InspectionsLimited

  Permitted work in Seabrook town.

  • For work or projects estimated to cost more than $10,000, the Building Inspector must inspect the premises before issuance to verify required stakes or markers.
  • parameters are subject to the Building Inspector's determination.

  pre-permit inspection threshold: > 10000 USD (work or project estimated to cost more than $10,000)

  “No building permit for any work or project estimated to cost more than $10,000 shall be issued until the Building Inspector has inspected the premises and has satisfied himself that all lot, building, structure and land use stakes or markers are in place and comply with the provisions of this ordinance.”

• Zoning districtsPublished (with conditions)

  Land inside Seabrook town.

  • The official zoning map is incorporated by reference and is final authority for current zoning status.

  “For the purpose of this ordinance, the Town of Seabrook is hereby divided into eight use districts: Zone 1 (Rural) Zone 2 (Commercial) Zone 2R (Residential) Zone 3 (Industrial) Zone 4 (Conservation) Zone 5 (Harbor Commercial) Zone 6R (Smithtown Village - Residential) Zone 6M (Smithtown Village and North Village - Mixed Use) These districts and the boundaries of such districts are shown on the official Zoning Map of the Town of Seabrook, which map is incorporated herein by reference and made a part hereof.”

• SetbacksDistrict specific (with conditions)

  Buildings and structures in Seabrook zoning districts, including rural Zone 1 and residential Zone 2R.

  • Requirements are governed by the Section 7 dimensional table and vary by district and improvement type.

  “no lot area shall be so reduced or diminished that the yards or other open spaces shall be smaller than prescribed by this ordinance, nor shall the density of population be increased in any manner except in conformity with the table set forth below.”

• Living in an RVLimited

  Recreational vehicles placed in Seabrook flood-hazard areas.

  • In Zones A and AE, an RV must be on the site fewer than 180 days, be fully licensed and ready for highway use, or meet the ordinance's floodplain standards.
  • The cited ordinance separately defines an RV as not designed primarily for use as a permanent dwelling.

  RV site duration: < 180 days (Zones A and AE; alternative compliance routes are stated in §24.230)

  “24.230 recreational vehicles placed on sites within zones a and ae shall either: • be on the site for fewer than 180 days; • be fully licensed and ready for highway use;”

• Manufactured homesLimited

  Manufactured/mobile-home parks and existing nonconforming mobile homes inside Seabrook town.

  • No new mobile-home or house-trailer park may be established or expanded.
  • A nonconforming mobile home may be replaced at the same location.

  “11.100 Mobile Home Parks: No mobile home park or house trailer park shall be established, or be allowed to expand if already established, within the confines of the town.”

• Subdividing landRegulated (with conditions)

  Subdivision or lot-line adjustment within Seabrook municipal boundaries.

  • Planning Board approval is required before recording; applications go to the Planning Board office; no on-site work after submission without prior Planning Board approval.

  “in order to subdivide land or adjust lot lines (i.e. move or eliminate property lines), prior approval by the planning board is required.”

• Building in a floodplainRequired

  New construction or substantially improved structures in Seabrook flood zones A, AE, or VE.

  • Applicants in Zones A and AE must furnish specified as-built elevation and floodproofing information to the Building Inspector.
  • The Building Inspector cannot grant a permit until required federal or state approvals are certified.
  • Further encroachment limits apply in floodways and Zone AE.

  “The Building Inspector shall not grant a permit until the applicant certifies that all necessary permits have been received from those governmental agencies from which approval is required by federal or state law”

• Permit feesVariable (with conditions)

  Building permits, inspections, and certificates of occupancy in Seabrook town.

  • Fees may be established and increased by the Board of Selectmen if circumstances warrant.

  “Building permit fees, inspection fees and fees for certificates of occupancy may be established by and increased, if circumstances warrant, by the Board of Selectmen.”

• Permit processPublished (with conditions)

  Building-permit applications in Seabrook town.

  • The written form must be prescribed by the Selectmen; required fee and duplicate drawing or plat are required; plans must show the information requested, including lot plan, building/use location and dimensions, and for human habitation, waste/sewage disposal and access information.

  “No application for a building permit shall be received or approved unless it is filed in writing on a form prescribed by the Selectmen, accompanied by the required permit fee and accompanied by a drawing or plat, in duplicate,”

Still unanswered

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

• Owner-builder exemption — Owner-built residential construction inside Seabrook town.
• Certificate of occupancy — Occupancy of buildings inside Seabrook town.
• Minimum dwelling size — Single-family dwellings inside Seabrook town.
• Lot coverage — Lots inside Seabrook town.
• Camping on your land — Temporary camping on private land inside Seabrook town.

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.

Off-grid gear

Going off-grid in Town of Seabrook means bringing your own water and power. The kit we’d start with:

• Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
• Power Bluetti Solar generators and home battery backup for living off the grid.
• Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
• Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.

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