Portsmouth, Rhode Island Building Permit Guide

The Town’s Building Inspection Department issues building permits in Portsmouth, and every application is made online through OpenGov. Fees follow the cost of the project, starting at $12 per $1,000 of value. A new house can also owe a Fire Department plan review fee, a refundable soil bond and a school impact fee of $3,190 for each bedroom after the first, and starting work without a permit costs $500 or more per permit.

What requires a building permit in Portsmouth?

The Building Inspection Department points to state law: you need a permit to build, enlarge, alter (siding included), remove or demolish a building, change its use group, or install or alter regulated equipment, while ordinary repairs that break no code rule are exempt. In the Town’s own words, most projects need a permit.

Pools: the state code treats anything built for swimming or bathing that is more than 24 in deep as a swimming pool, and it needs a fence at least 48 in high unless it has a complying lockable safety cover. The Town’s FAQ lists pools among permitted work but adds that the size of the pool and of the lot decide whether a building permit or more is needed, so the department asks you to call 401-683-3611.

What Portsmouth handles and what the state keeps

Portsmouth’s Building Inspection Department issues the permits, reviews the plans, inspects and grants the certificate of occupancy; it also reviews soil erosion site plans. The Fire Department approves smoke and CO detector locations and runs life safety inspections, the Zoning Board and Planning Department handle land use, and historic properties have their own permit link in the portal. RIDEM keeps septic design approval (whose bedroom count also drives the impact fee) and freshwater wetlands permits, CRMC keeps coastal assents, and the state’s Contractors’ Registration and Licensing Board keeps contractor registration.

Portsmouth building department: who handles permitting

The Building Inspection Department enforces the building codes through permits, plan review and inspections. Matthew S. Kent is the Building Official. Other approvals a project may need come from RIDEM, the utility companies, the Fire Department and the Zoning Board, and zoning applications are filed in their own OpenGov category.

Portsmouth applications and documents

Building permits are all electronic. Plans can be attached in OpenGov or copies dropped off at Town Hall, and a set must also go to the Fire Department so it can approve where the smoke and CO detectors go. Forms the department posts:

• Homeowner Affidavit for Owner/Occupant to Perform Work: a homeowner may work on their own house only if it is their legal primary residence, not a rental, and must sign this affidavit, get the permit and pass the inspections.
• CRMC Building Official Form, for coastal properties.
• FEMA NFIP Elevation Certificate and V Zone Design Certificate, for flood zones.

New house checklist. The Town’s guidelines for a single-family home ask for:

• A site plan showing the house with dimensions to the property lines, the soil erosion control plan and the septic layout, plus coastal or flood information where it applies
• Building plans to scale: foundation plan, floor plans, elevations, cross sections and construction details
• A layout and calculations for any engineered beams (LVL) or trusses
• Any approved variances or coastal assents
• An Elevation Certificate before the permit is issued, if the lot is in a flood zone

Coastal lots may also need shear wall bracing and engineered foundations with breakaway walls, and small or tight lots, or houses close to the height limit, may need an as-built survey at the framing stage.

Residential permits

The Building Department category in the portal offers six applications: building, electrical, mechanical, plumbing, demolition and solar, with a related fire plan review added on the same building or trade submission where it applies. For a new house the single-family guidelines above set the plan list, and the Town collects the $75 Fire Department plan review fee, the refundable soil bond and, before the certificate of occupancy, any impact fee. An owner-occupant uses the Homeowner Affidavit; a rental owner cannot.

Building or remodeling a home here? Alliance handles residential permit filing, so the crew isn't waiting on the counter.

Commercial permits

Commercial building and trade permits come through the same six forms. Larger projects that go before the Zoning Board (the Board of Review in Code Chapter 170) pay extra professional review fees: $100 per unit for an apartment, condominium, cluster or townhouse complex of more than two units, $150 per rental unit for a hotel, motel or inn, $100 per bed for a nursing home, and $100 per 1,000 sq ft of floor space for a retail, service, commercial or industrial complex that needs a special exception. Each site plan reviewed by the Building Official’s office for soil erosion costs $50 (one-lot subdivisions excepted), plus a surcharge if it has to be referred to the Rhode Island Conservation District. Planning applications and zoning certificates have their own portal categories.

For tenant improvements and new commercial builds, Alliance handles commercial permit expediting through issuance. More on this: commercial building permits explained.

Looking up a Portsmouth permit or record

The portal’s Search for Records lists permits filed online. For anything else, Portsmouth’s Access to Public Records Act procedure lets you ask the public records officer in the department orally or in writing, or email the request to apra@portsmouthri.gov; the Town asks for its records request form to speed things up.

Portsmouth permit fees

The building permit fee is set by the cost of the project, using the Portsmouth schedule in the state fee regulation (510-RICR-00-00-21):

For a $25,000 project that works out to $120 plus 15 × $10, or $270, plus the state levy under R.I. Gen. Laws § 23-27.3-108.2 of 0.1% of construction cost, which stops at $50 a permit on one- and two-family dwellings.

Impact fee rules (Code Chapter 170, Article X): the fee applies to a building permit that adds a dwelling unit, converts a non-residential use to housing or adds bedrooms. The first bedroom of each unit is not counted, the charge stops at four bedrooms, the bedroom count comes from the RIDEM-approved septic design, and the Town Council resets the rate each year. Exemptions include remodeling of existing structures, zero- and one-bedroom units, accessory family dwelling units, and one new home on a vacant lot of record that existed on December 31, 2002; any exemption must be claimed when you apply for the building permit. The department notes that lots subdivided after 2003 pay the fee before the certificate of occupancy.

Late filing fees were changed in May 2025. A homeowner caught working without a permit for the first time pays nothing if they comply within one business day; repeat offenders get no relief.

Electrical, plumbing and mechanical permits in Portsmouth

Most electrical, plumbing and mechanical work needs its own permit from the Building Inspection Department, applied for in OpenGov like a building permit. The Town notes that Rhode Island licenses some contractors, such as electricians and plumbers, while general contractors do not need a licence but must be registered; the department can say which licences a contractor needs for the job.

Alliance handles electrical permit applications for contractors here. More on this: who pulls the electrical permit.

Who may pull trade permits

Portsmouth’s FAQ separates the two state systems: electricians and plumbers hold licences, issued by the Department of Labor and Training, while general contractors are registered rather than licensed, with the Contractors’ Registration and Licensing Board. A town cannot issue a building permit to a contractor who must register and has not (R.I. Gen. Laws § 5-65-3). The homeowner exception is narrow here: only an owner working on their legal primary residence may pull a permit, after signing the affidavit, and a rental house does not qualify.

How to get a Portsmouth building permit

Review, corrections and what causes delay

Portsmouth does not post a review time. Its own checklist shows the items that hold a permit: on a flood-zone lot no permit issues until the Elevation Certificate is in; the site plan must already carry the soil erosion control plan and the septic layout, so the RIDEM septic design has to be done first; beams and trusses need a layout and calculations; and variances or coastal assents must be submitted with the plans. Plans must also go to the Fire Department, which approves the smoke and CO detector locations.

Portsmouth inspections

Permits come with required inspections, and a homeowner who pulls their own permit must still have them done. On small or tight lots the Building Official may ask for an as-built survey to confirm the house’s position before framing goes ahead, and a height as-built when the ridge is framed on a house near the height limit. The certificate of occupancy follows the final inspection, and on a lot subdivided after 2003 it is not issued until the impact fee is paid.

Portsmouth coastal, flood and septic rules

Flood zones: Portsmouth takes part in the National Flood Insurance Program, and its current FEMA flood maps took effect on September 4, 2013. In a flood zone the department requires an Elevation Certificate before it issues a permit, and it posts a V Zone Design Certificate for coastal high-hazard areas.

Coastal work: the Coastal Resources Management Council permits work in the coastal zone, and coastal assents must be submitted with the building permit.

Septic systems: RIDEM issues septic (OWTS) permits, typically reviewing new construction and alteration designs in 3 weeks. Since 2015 the whole town has been a Wastewater Management District (Code Chapter 392): every property with a septic system, cesspool or holding tank falls under the Town’s inspection and maintenance program, and repairs in Island Park and Portsmouth Park follow RIDEM’s design guidance for those neighborhoods.

Wetlands: work in or near freshwater wetlands needs a RIDEM permit under the 2022 Freshwater Wetlands Rules.

Building code in Portsmouth

Portsmouth applies the Rhode Island State Building Code, based since December 1, 2025 on the 2021 International Codes with state amendments and the 2023 National Electrical Code. The Town highlights the 2024 International Energy Conservation Code, which every new building must meet and which includes “electric readiness” provisions for future electric vehicle chargers and solar panels.

Rhode Island has one state building code, kept by the State Building Code Office and enforced by each city or town’s building official; there is no county layer, and appeals go first to the town’s board of appeals, then to the state Building Code Board of Standards and Appeals. Rhode Island rules

Portsmouth permit FAQ

Who issues building permits in Portsmouth?

The Building Inspection Department, Town Hall 2nd floor, 2200 East Main Road (401-683-3611).

How much is a building permit in Portsmouth?

$12 per $1,000 of project value up to $10,000, $120 plus $10 per $1,000 up to $50,000, then $520 plus $8 per $1,000, with a minimum of $65 ($66 on the Town’s FAQ).

What is the Portsmouth impact fee?

$3,190 per bedroom on new homes and added bedrooms, with the first bedroom free and at most four bedrooms counted.

Do I need a permit for a fence?

Not for a fence up to 6 ft, even on the property line; a fence over 6 ft needs a building permit.

Can I pull my own permit?

Only for your legal primary residence, not a rental, after signing the homeowner affidavit.

What if I started work without a permit?

A late filing fee of $500 per permit for a first offense by a contractor or warned homeowner, rising to $1,000 and $5,000; a first-time homeowner who complies within one business day is exempt.

How do I request an old Portsmouth building file?

Ask the department’s public records officer, or email apra@portsmouthri.gov using the Town’s Access to Public Records Act request form; permits filed online can also be found with the portal’s Search for Records.

What extra fees apply to a multi-unit or commercial project?

Under Code Chapter 170, Zoning Board applications pay $100 per unit for complexes of more than two units, $150 per rental unit for hotels, motels and inns, and $100 per 1,000 sq ft for commercial or industrial complexes needing a special exception.

Portsmouth permit search and official resources

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Portsmouth Building Inspection Department
• Portsmouth OpenGov building permits
• Portsmouth OpenGov zoning applications
• Portsmouth building permit late filing fees
• Portsmouth Code Chapter 170, Fees (impact and plan review fees)
• Portsmouth Code Chapter 392, Wastewater Management District
• Portsmouth homeowner affidavit (PDF)
• Portsmouth V Zone Design Certificate (PDF)
• Statewide building permit fee schedules (510-RICR-00-00-21)
• Rhode Island Building Code Commission: adopted codes
• Coastal Resources Management Council
• RIDEM onsite wastewater (septic) permits
• RIDEM freshwater wetlands permits
• Portsmouth Access to Public Records Act procedure
• RI Department of Labor and Training, Professional Regulation (trade licences)

Simplify Portsmouth permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Rhode Island. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Portsmouth permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.