The Old Saybrook Building Department at Town Hall, 302 Main Street, reviews applications filed online through CitySquared, issues building and trade permits and inspects the work everywhere in town except the Borough of Fenwick. The fee is $50 for the first $4,000 of job cost and $10 for each further $1,000, and any project that needs zoning approval must get it before the building application is filed.
What requires a building permit in Old Saybrook?
The department’s “Do I need a Building Permit?” sheet starts from the state code: anyone who builds, enlarges, alters, repairs, moves or demolishes a building, or installs or changes an electrical, gas, mechanical or plumbing system, applies first. Its local list then names the everyday jobs that need a permit, and adds that in a flood zone all work requires a permit.
Permit needed (town list)
- Plumbing changes beyond swapping sinks, toilets, faucets and traps in place; gas lines; water heater replacement
- Electrical work beyond changing fixtures, switches and receptacles
- Replacing furnaces, central air or ductwork
- Adding or removing walls; window replacement; siding
- Re-roofing, and roof repairs over 100 sq ft
- Slabs and foundations; the town list adds patios more than 6 inches above grade
- Fences over 7 feet; retaining walls over 3 feet or holding a surcharge
- Pools 24 inches deep or more
- Any work at all in a flood zone
No permit (state code and town list)
- Fences of 7 feet or less, other than pool barriers
- Retaining walls up to 3 feet holding back no surcharge
- Walks and patios on grade, not more than 30 inches above adjacent grade and not over any basement or story below
- Painting, tiling, carpeting, cabinets and counters
- Prefabricated pools under 24 inches deep; backyard play equipment
- Roof repairs of one square (100 sq ft) or less
- Driveways (an encroachment permit is needed on town land)
- Tents up to 20 by 40 feet holding fewer than 50 people
The town sheet predates the 2022 code: its 4-foot retaining wall line is now 3 feet, and its 6-inch patio line is stricter than the state’s 30 inches, so ask about a patio in between. A one-story shed up to 200 sq ft needs no building permit under the state code, as the sheet says; the building page’s 120 sq ft figure is the zoning line in the online filing guide, so a larger shed needs zoning approval first. Any shed needs a talk with Land Use about placement, and a second shed or a shed on a lot with a detached garage needs zoning approval.
What the town decides and what the state holds
Chapter 94 of the Town Code adopts the State Building Code, lets the Building Official set the fee schedule subject to Board of Selectmen approval, waives building fees for town buildings and buildings owned by nonprofit organizations, and charges owners for any special technical services the Building Official needs. The town’s own Board of Appeals hears appeals from the Building Official’s decisions. Zoning (regulations effective October 1, 2026), coastal site plan review, the historic district and the local flood rules in Chapter 128 are all Old Saybrook decisions.
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Get a free quote →Old Saybrook building department: who handles permitting
Tom Makowicki is the Building Department’s department head and building inspector. The department reviews permit applications and site plans, sends applicants to the other agencies they need, and works closely with the Land Use Department and the Fire Marshal, all three of which are in Town Hall. Property owners in the Borough of Fenwick deal with the borough’s own Building Official at 580 Maple Avenue (860-388-3499).
| Office | Details |
|---|---|
| Building Department | Town Hall, 302 Main Street, Old Saybrook, CT 06475; 860-395-3130 |
| Hours | Monday to Friday, 8:30 a.m. to 4:30 p.m. |
| Online filing | CitySquared (help line 855-436-5500) |
| Land Use Department (zoning, wetlands, coastal, historic) | Town Hall; 860-395-3131; Monday to Friday 8:30 a.m. to 4:30 p.m. |
| Fire Marshal | Town Hall; 860-395-3133 |
| Septic (Connecticut River Area Health District) | 455 Boston Post Road, Suite 7, Old Saybrook; 860-661-3300 |
| Borough of Fenwick building department | 580 Maple Avenue; 860-388-3499; weekdays 8 a.m. to noon |
Old Saybrook permit types and application documents
In CitySquared you choose Building Department Permits, then Residential or Commercial Property, then the permit type. The town publishes what counts as each trade permit. A mechanical permit covers new or replacement condensers, air handlers, furnaces, heat pumps, ductwork and ductless mini-splits, geothermal systems, generators, fire sprinklers, lawn irrigation, solar panels, oil or LP tank installation or removal, and elevators. An electrical permit covers any new or replacement wiring, outlets and fixtures, and low-voltage alarm, communications and surveillance wiring.
Residential permits
The online filing guide lists the home projects that need zoning approval before the building application: sheds over 120 sq ft, garages, basements, decks, new houses, signs, additions, an added bedroom, changed roof lines and dormers, apartments and accessory dwelling units, changes of use, pools, hot tubs and spas. Each application lists every contractor on the job; a homeowner doing the work attaches state workers’ compensation Form 7A or 7B. Converting a seasonal cottage (one used mainly between April 1 and November 15) to year-round use needs Board of Selectmen approval under Chapter 170, with a surveyed plan, the Director of Health’s septic approval and the Building Official’s sign-off on insulation, wiring and heating.
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Get a free quote →Commercial permits
Commercial building plan reviews, underground oil tank removals and tents need both a Fire Marshal application and a building permit application, each paid separately. The Fire Safety Code applies to all occupancies except one- and two-family homes and manufacturing premises. New uses, expansions or reductions of more than 500 sq ft, expansions of 10 feet in any direction, disturbance of 2,000 sq ft of land or 300 cubic feet of soil, and changes of use in buildings of 1,000 sq ft or more need what the online permit page calls Planning Board approval first.
For tenant improvements and new commercial builds, Alliance handles commercial permit expediting through issuance. More on this: commercial building permits explained.
What comes before the building permit
- Zoning: a certificate of zoning compliance from the Zoning Enforcement Officer ($40 plus the $60 state fee), or a Zoning Board of Appeals variance where setbacks, height, coverage or use do not comply.
- Architectural and historic review: the town lists new structures (houses, sheds, decks, fences and walls), additions, exterior changes, signs and awnings as projects needing Architectural & Historic Review Board approval.
- Coastal site plan review: see below.
- Wetlands and buffers: the Inland Wetlands and Watercourses Commission for regulated activity; zoning keeps a 50-foot setback from tidal wetlands and a 100-foot riparian buffer along the Connecticut River and its tributaries.
- Septic: the Connecticut River Area Health District; the town’s building files hold only limited septic information, so the department sends septic questions there.
Old Saybrook permit costs and fees
The Building Department’s permit fee schedule charges $50 for the first $4,000 of construction cost and $10 for each further $1,000, where cost means the whole job, materials and labor. Under Chapter 94 the Building Official sets this schedule with Board of Selectmen approval. The posted sheet does not show the state education fee as a separate charge. Land use fees come from the schedule adopted at Town Meeting on July 13, 2021.
| Item | Fee or rule |
|---|---|
| Building permit, construction cost up to $4,000 | $50 |
| Each further $1,000 of construction cost | $10 |
| Town buildings and buildings owned by nonprofits | Building permit fees waived (Town Code 94-3) |
| Certificate of zoning compliance | $40 plus $60 state land use fee |
| Coastal site plan review | No charge with a Planning, Zoning or ZBA application; otherwise $140 plus $60 |
| Flood hazard permit, work that is not a substantial improvement | $425 |
| Flood hazard permit, new home or substantial improvement in an A zone | $1,800 |
| Flood hazard permit, home in a V zone or the LiMWA area | $2,200 |
| Inland wetlands regulated activity | $240 plus $60 |
Rather talk it over?
Call 1-855-478-4290 →The schedule’s own table shows how the bands run: a job costing between $29,001 and $30,000 pays $310, which is $50 for the first $4,000 plus 26 × $10. The fee is due with the application, but in CitySquared the applicant is prompted to pay online once the department approves the application. The flood hazard fees cover set amounts of plan review and inspection; extra plan revisions, calls and inspections, and commercial or multi-family flood reviews, are billed at actual cost.
Trade permits and who may pull them in Old Saybrook
Old Saybrook separates mechanical and electrical permits from the building permit and lists exactly which installations fall under each, from mini-splits and generators to surveillance wiring. Trade contractors and home improvement contractors must be licensed or registered with the state Department of Consumer Protection, and the town’s online application asks for every contractor working on the project.
The town puts the responsibility on owners: its Building page says it is the homeowner’s job to make sure contractors have permits, and warns that state law carries fines of up to $1,000 and possible imprisonment for violations. A homeowner doing the work personally files the state workers’ compensation Form 7A or 7B with the application.
How to apply for an Old Saybrook building permit
If the project is on the zoning list, get the certificate of zoning compliance (and any coastal, historic or flood approval) before filing for the building permit.
Create a login, choose Old Saybrook, Building Department Permits and Residential or Commercial.
Pick the permit type, find the property, add every contractor and attach the documents, or Form 7A or 7B if you are doing the work.
The department contacts applicants within 10 business days; it asks applicants not to call about status.
If approved, CitySquared prompts for payment and the permit is issued.
Only after the permit is issued, at 860-395-3130.
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Get a free quote →Review, corrections and what causes delay
State law gives the building official 30 days from the date of application to issue or refuse a permit; Old Saybrook aims to contact applicants within 10 business days and does not expedite reviews. The town’s preferred channel is CitySquared; state law also lets an applicant file in person, by mail or by email in the manner the building official sets, so call the office if you cannot use the portal. The department says not to apply for a building permit while zoning approval is still needed, and that an application is not a permit. Projects in the coastal management zone can also take longer, because applications the Zoning Enforcement Officer could otherwise approve alone, such as a new house in a flood zone or on a lot with tidal wetlands, beaches or dunes, may go to the Planning Commission or Zoning Board of Appeals for coastal review.
Old Saybrook inspections and closeout
Inspections are scheduled by calling the Building Department at 860-395-3130, and only once the permit has been issued. Once the permit and its documents are approved, the Building Official visits the site and approves each stage of construction. The final inspection ends the process: a new or renovated building receives a certificate of occupancy, or a certificate of approval for work that needs one, which allows it to be occupied.
Flood-zone work has its own closeout. Chapter 128 calls for elevation certificates from a Connecticut licensed surveyor, engineer or architect showing the lowest floor in A zones, or the lowest horizontal structural member in V zones and the coastal AE area behind the limit of moderate wave action, and the town’s flood fee schedule charges actual cost for a pre-framing elevation check.
Connecticut building code
Old Saybrook adopts the State Building Code as amended from time to time, so the 2022 Connecticut State Building Code, based on the 2021 International Codes, applies to applications filed from October 1, 2022. The 2026 edition is delayed; once it takes effect, the filing date will decide which edition applies.
Connecticut has one State Building Code: the code itself sets which work needs a permit and which is exempt, every town’s building official is licensed by the State Building Inspector, and there is no county government. Connecticut rules
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Get a free quote →Coastal site plan review and flood rules
Section 59 of the zoning regulations requires a coastal site plan with any application for a building, structure, use, excavation or grading within the coastal boundary. The exemptions include fences, walls, walks and utility lines; residential walks, terraces, driveways, pools, docks, elevated decks and detached accessory buildings; minor additions; interior work; and raising a flood-zone home that is at least 100 feet from tidal wetlands, the coastal jurisdiction line, bluffs, beaches and dunes. The Town Engineer administers Chapter 128, the floodplain ordinance, with the Zoning Enforcement Officer and Building Official as deputies, and the flood permit is part of the zoning compliance application. Old Saybrook requires a new or substantially improved home to have its lowest floor, basement included, at least 2 feet above the base flood elevation, with utilities also 2 feet above it, and counts improvements over a ten-year period when deciding what is substantial. In V zones buildings must stand landward of the coastal jurisdiction line on an open foundation 2 feet above the base flood elevation.
Old Saybrook building permit FAQ
How much is a building permit in Old Saybrook?
$50 for the first $4,000 of construction cost and $10 for each further $1,000. A $30,000 job pays $310.
Do I need zoning approval first?
For sheds over 120 sq ft, garages, basements, decks, additions, new houses, pools, hot tubs, dormers, roof-line changes, added bedrooms, accessory apartments and changes of use, yes, before the building application.
Do I need a permit for a fence?
Not for a fence of 7 feet or less unless it is a pool barrier; it can go right to the property line, with the “pretty side” facing either way.
How long does review take?
The department contacts applicants within 10 business days of an online submission and does not expedite.
Who handles permits in Fenwick?
The Borough of Fenwick has its own Building Official at 580 Maple Avenue (860-388-3499) and its own zoning, and it bars most building work from July 1 to the first business day after Labor Day.
Who approves septic systems?
The Connecticut River Area Health District at 455 Boston Post Road (860-661-3300).
Old Saybrook permit search and official resources
To review a property file, visit the Building Department at Town Hall: staff will not relay file contents electronically or by phone. Each month the department also posts a list of the permits it issued, with date, permit type, owner, address and work description (January to September 2026 are on the Building page). Old Saybrook takes part in the National Flood Insurance Program; its current FEMA flood maps date from February 6, 2013, with three panels from August 28, 2008, and the Town Engineer handles flood permits with the Land Use office.
Inspections are where schedules slip.
Get a free quote →- Old Saybrook Building Department
- Old Saybrook online permit applications
- Old Saybrook CitySquared permit portal
- How to apply for an Old Saybrook building permit online
- Old Saybrook: do I need a building permit?
- Old Saybrook building permit fee schedule
- Old Saybrook Land Use Department
- Old Saybrook land use fee schedule (2021)
- Old Saybrook Zoning Regulations (effective October 1, 2026)
- Old Saybrook coastal resources and coastal site plan review
- Old Saybrook Fire Marshal
- Old Saybrook Town Code (building, floodplain, seasonal dwellings)
- Connecticut River Area Health District
- Connecticut Department of Consumer Protection: licenses and registrations
Simplify Old Saybrook permitting with Alliance Permitting
Alliance Permitting is a permit documentation and submission company in Connecticut. 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.
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Read guide →This guide is provided by Alliance Permitting for general information about Old Saybrook permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.