The City of Manchester's Building Division, part of Planning and Community Development at One City Hall Plaza, handles building code administration, plan review, permit approval, field inspections and record keeping for a city of around a hundred and seventeen thousand on the Merrimack — a quarter larger than the next city and by some distance the busiest counter in New Hampshire. Building permit applications are available online, and the department will post an application to anyone who prefers to work on paper.
Manchester is unambiguously a municipality that has adopted an enforcement mechanism under RSA 674:51, so the state building code is administered here by the city's own officials rather than by the State Fire Marshal. That matters more in New Hampshire than it sounds: a good number of the state's smaller towns have adopted nothing at all, and a contractor moving between jobs can find the process changes completely across a town line. In Manchester the process is structured, the plan review is in-house, and the record keeping is the department's own.
This guide covers the City of Manchester in Hillsborough County. Bedford, Goffstown, Hooksett, Auburn and Londonderry are separate municipalities with their own building officials, and no New Hampshire county issues building permits in practice.
Decks and porches carry their own construction detail. Manchester's application guidance singles out decks and porches: a permit to build, repair or replace one must carry the construction information the division specifies, not a sketch. On the city's older housing stock — much of it triple-decker and much of it with a rear porch structure that has been rebuilt more than once — that detail is where the review actually happens.
What requires a building permit in Manchester?
New Hampshire applies one code everywhere and leaves the enforcing to the town. Under RSA 155-A all buildings, building components and structures constructed in New Hampshire must comply with the state building code and the state fire code — there is no opting out of the standard. What varies is who administers it: a municipality takes on permitting and inspection only by adopting an enforcement mechanism under RSA 674:51, and a good number of New Hampshire towns never have. The code itself is the twenty twenty-one international building, residential, existing building, plumbing, mechanical and swimming pool codes with the twenty eighteen energy code and the twenty twenty-three National Electrical Code, all with New Hampshire amendments, in force since the first of July twenty twenty-four. So in Manchester the questions are whether the municipality enforces, what it has amended, and the division's in-house plan review and the deck and porch detail it requires.
Two statutory rules shape every New Hampshire project and neither is in the model code. The first is a lock on the edition: the state building code in effect when the permit application is received by the governing authority remains in effect for the duration of the work covered by that permit, so a long project is not overtaken mid-build by a new code. The second is the concurrency period: for six months after a new edition takes effect an applicant may elect to show compliance under either the old code or the new one — but not a combination of the two. Beyond that, the code draws the ordinary permit line: construction, alteration, renovation, repair, removal and demolition are covered; ordinary repairs are not.
Typically permit required
- New construction, alteration, addition, demolition and change of occupancy, on a permit obtained before work begins
- Decks and porches built, repaired or replaced, with the construction information the division requires
- Electrical, plumbing and mechanical work, each on its own permit by a state-licensed tradesperson
- New construction and renovation, on a permit obtained before work begins under RSA 155-A:4
- Alteration, renovation, rehabilitation, repair, removal and demolition of buildings previously erected
- Electrical, plumbing and mechanical work, by tradespeople licensed by the state
Often exempt
- Ordinary repairs that do not alter structure, egress, fire protection or building systems
- Painting, papering, flooring, cabinets and similar finish work
- Ordinary repairs that do not alter structure, egress, fire protection or building systems
- A tent of any size erected as an accessory structure at an owner-occupied one or two-family dwelling
- Painting, papering, flooring, cabinets and similar finish work
What the municipality may change, and what it may not
New Hampshire lets a municipality amend the state building code, and then puts a check on it. Local amendments are adopted by the legislative body under RSA 674:51, but since the twenty twenty-two amendment to that statute a local ordinance amending the code may not be enforced unless it has been confirmed by the state Building Code Review Board, which publishes the amendments it confirms. Issuing permits and collecting fees are not themselves amendments and need no confirmation. A municipality that has adopted an enforcement mechanism may contract the work to a local enforcement agency or a qualified third party rather than employ its own building official, and that contractor holds the same authority as a building inspector. Appeals from a local official go to the municipality's own building code board of appeals; appeals from the State Fire Marshal go to the Building Code Review Board. Beyond that, the division's own plan review and record keeping, the mill and triple-decker stock that dominates the existing building work, and the deck and porch detail the department insists on.
Who handles permitting in Manchester?
The Building Division of Planning and Community Development is the permitting authority inside the city, administering the New Hampshire State Building Code through the enforcement mechanism the city has adopted, with plan review, permit approval, field inspection and record keeping in-house. The State Fire Marshal permits state, university and community college buildings wherever they stand, the environmental department issues shoreland, wetlands and sewage approvals, and the Office of Professional Licensure and Certification licenses electricians, plumbers and gas fitters statewide.
| Detail | Information |
|---|---|
| Department | Manchester Building Division, Planning and Community Development |
| Office | One City Hall Plaza, Manchester, NH 03101 |
| Phone | (603) 624-6475 — Planning and Community Development (603) 624-6450 |
| Filing | Applications online; the department will post one on request |
| Enforcement | The city has adopted its own enforcement mechanism |
| Trade licences | Office of Professional Licensure and Certification, statewide |
Permit types
Residential permits
A Manchester house project files with the Building Division with the trades on their own permits, and brings the construction detail the department asks for on a deck or porch. The city's dense multi-family stock makes a change in the number of units a zoning question before it is a building one, and on any project the statute is worth remembering: the contractor carries the duty to meet the state building code and fire code, and the city cannot be held liable for their failure to do so.
How New Hampshire contractor credentials work
New Hampshire issues no general contractor licence. A builder needs no state credential to take on a house, and the statute puts the duty squarely on them anyway: the contractor is responsible for meeting the minimum requirements of the state building code and state fire code, and no municipality may be held liable for a contractor's failure to comply. The trades are licensed through the Office of Professional Licensure and Certification: electricians under the electricians' board, plumbers under the plumbers' board, and gas fitters and mechanical trades under the licensing required by RSA 153:27. In Manchester the credential is checked at permit issue where the municipality enforces, and where it does not the licence requirement still applies to the tradesperson doing the work.
Commercial permits
Commercial work in Manchester — the Millyard and its conversions, the downtown along Elm Street, the hospital campuses, the airport and the industrial parcels south of the city — runs through the division's plan review with the state fire code alongside. A mill conversion is a change of occupancy under the code and the existing building provisions carry most of the weight; the edition lock in RSA 155-A means a multi-year Millyard project keeps the code that was in force when its application was received.
The state permits that sit outside the town
Several New Hampshire approvals come from the state rather than the municipality, and they are the ones most often missed. The Shoreland Water Quality Protection Act requires a permit from the Department of Environmental Services for construction, excavation and filling within two hundred and fifty feet of a protected water body — a state permit, not a local ordinance. Wetlands work and subsurface sewage approval run through the same department. The State Fire Marshal permits, inspects and certifies buildings owned by the state, the university system and the community college system wherever they stand, and operates the State Building Permit Program for municipalities without a code enforcement mechanism that have asked for help in writing. In Manchester the Merrimack River and the Piscataquog put shoreland and flood questions on the low ground and the mill frontage, the airport approach surfaces reach the parcels south of the city, and the Millyard's scale keeps existing building work at the centre of the commercial file.
Manchester permit costs and fees
Manchester charges building and trade permit fees on the declared construction value under the city's schedule, with separate electrical, plumbing and mechanical fees and planning fees where the project reaches site plan or the boards.
| Item | Fee or rule |
|---|---|
| Building permit | On the declared construction value, per the city's schedule |
| Trade permits | Separate electrical, plumbing and mechanical fees |
| Plan review | Carried out in-house by the Building Division |
| Planning and zoning | Site plan, variance and board application fees where the project reaches them |
| State permits | Shoreland, wetlands and sewage approvals through the environmental department |
| Records | The division keeps its own permit and inspection records |
The code is fixed at the date of application. Under RSA 155-A the state building code in effect when the application is received by the governing authority remains in effect for the whole of the work under that permit. On a phased Millyard conversion that is a real financial protection — the design is not overtaken mid-build — and it makes the filing date something to plan rather than let happen.
Trade permits and who may pull them
Trade work is permitted separately where the municipality enforces, and carried out by tradespeople holding the state licence their trade requires. New Hampshire declines to enforce arc-fault protection beyond the twenty fourteen electrical requirements, whichever edition of the electrical code the state has adopted.
Permit required
- Electrical — by an electrician licensed by the state electricians' board
- Plumbing — by a plumber licensed by the state plumbers' board
- Gas fitting and mechanical — under the state licensing required by RSA 153:27
- Fire protection — under the state fire code, with the fire marshal's review where it applies
Typically exempt
- Arc-fault protection beyond the twenty fourteen electrical requirements, which is not enforced in New Hampshire
- Like-for-like replacement the adopted code places below the permit threshold
How to apply for a Manchester building permit
Permitting exists locally only where an enforcement mechanism has been adopted under RSA 674:51; the code applies either way.
A local amendment is unenforceable unless the Building Code Review Board has confirmed it, and the board publishes what it confirms.
Shoreland, wetlands and subsurface sewage approvals come from the environmental department, not from the town.
Electricians, plumbers and gas fitters are licensed by the state; there is no general contractor licence, and the contractor carries the compliance duty.
The code in effect when the application is received governs the whole of the work; during a concurrency period elect one edition, not a blend.
Footing to final with the trades on their own permits, then the certificate of occupancy.
Review, corrections and what actually causes delay
The Building Division reviews plans for code compliance in-house, with the state fire code applying alongside. What delays a Manchester project is a deck or porch application without the construction information the department specifies, a unit-count change treated as a building question, and a trade permit pulled by someone without the state licence.
Inspections in Manchester
Where the municipality enforces, inspections follow the code's sequence — footing, foundation, framing, rough trades, insulation and final — requested from the building official by permit number, with the trades inspected on their own permits and a certificate of occupancy at the end. Where the State Building Permit Program covers the work instead, inspections are booked with the State Fire Marshal's office at least forty-eight hours ahead, non-compliant work draws a written order to correct, and the re-inspection carries its own fee. Manchester inspections are field inspections by the division's own inspectors against the permit number, with the trades inspected on their own permits, and a certificate of occupancy at the close.
Manchester permit search and official resources
- Manchester Building Division — code administration, plan review, permits, inspections and records
- Manchester permit applications — the forms, the online route and the deck and porch requirements
- New Hampshire State Building Code — the adopted editions and the statewide amendments
- New Hampshire State Building Code — the adopted editions, the amendments and RSA 155-A
- State Building Permit Program — the fire marshal's permits, inspections and certificates where a municipality does not enforce
- RSA chapter 155-A — the statute on the code, permits, enforcement and appeals
Frequently asked questions
Who issues building permits in Manchester?
The city's Building Division within Planning and Community Development at One City Hall Plaza. No New Hampshire county issues building permits in practice.
Which code applies?
The New Hampshire State Building Code — the twenty twenty-one international codes with the twenty eighteen energy code and the twenty twenty-three electrical code, all with state amendments, in force since the first of July twenty twenty-four.
Can the code change during my project?
No. The code in effect when your application is received remains in effect for the duration of the work covered by that permit.
Do I need a licensed contractor?
New Hampshire issues no general contractor licence, but electricians, plumbers and gas fitters are licensed by the state, and the contractor is responsible by statute for meeting the code.
Is the city liable if my contractor gets it wrong?
No. The statute places the compliance duty on the contractor and provides that no municipality may be held liable for a contractor's failure to comply.
Do I need a permit for a deck?
Yes, and the application must carry the construction information the Building Division specifies for decks and porches.
Simplify Manchester permitting with Alliance Permitting
Manchester is the busiest counter in the state and it rewards a complete file. We bring the deck and porch detail and the trade licences to the first submission and fix the code edition with the filing date.
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More New Hampshire permitting guides
More New Hampshire permitting guides
This guide is provided by Alliance Permitting for general information about Manchester permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.