East Lyme, Connecticut Building Permit Guide

In East Lyme, building permits and the trade permits for plumbing, mechanical, electrical and gas work come from the Town’s Building Department in the Land Use offices on the lower level of Town Hall, 108 Pennsylvania Avenue, Niantic. Applications and inspection requests go through MGO Connect, the Town’s online permit system. The department charges $30 for the first $1,000 of construction value and $15 for each further $1,000 or part of it, plus the state education fee and, on commercial work, a Fire Marshal plan review fee.

Building Official Frank Lathrop runs the department, which also answers code questions, looks into tenant and landlord complaints that touch the building code and life safety, and acts as the Town’s ADA coordinator. Zoning, planning, wetlands and Ledge Light’s courtesy office are on the same lower level of Town Hall. The building office phone is 860-691-4114.

Town Hall itself has a Niantic address, and Niantic properties file here; Waterford and Montville have their own building departments.

What requires a building permit in East Lyme?

The department issues permits for new structures and improvements to existing ones, residential and commercial, covering structural work, plumbing, mechanical, electrical and gas work, supplemental heaters and temporary tents. Its exemptions page reprints the 2022 state code list, which is what decides small jobs.

The department’s handouts on decks, garages, pools, windows, gas and basements were written for the 2018 code and carry a note that the 2022 changes are not in them, so treat them as background and follow the current code.

What the town decides and what the state holds

The construction rules come from the 2022 Connecticut State Building Code, which covers applications filed from October 1, 2022; when the delayed 2026 edition is adopted, the filing date will settle which edition governs. East Lyme decides its fees in section 150.015 of the Code of Ordinances, last amended in March 2025, its flood rules in chapter 151, its zoning through the Zoning Commission, and the rule that the Tax Collector confirms taxes are current before a permit issues. Three beach associations along the shore, Giants Neck, Crescent Beach and Black Point, run their own zoning, so a house there needs their approval as well as the Town’s.

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

East Lyme building department: who handles permitting

Every building permit is reviewed and approved by both the building official and the zoning official before it issues. The Zoning Department issues the separate zoning permits for sheds, pools, additions, renovations, new homes and all commercial projects, and the zoning official also administers the flood damage prevention ordinance. The Inland Wetlands Agency, through its agent or at a meeting, approves work within 300 feet of a wetland or watercourse. Ledge Light Health District reviews septic and well lots and holds courtesy hours in the Land Use office every Wednesday from 9:30 a.m. to 12:30 p.m. The Fire Marshal, based at the Public Safety Building, reviews commercial plans.

Permit types

MGO Connect carries the building and trade applications, and the department’s forms page adds the paper items a file may need: workers’ compensation waivers 7A, 7B and 7C, a demolition hold harmless agreement, the state’s request for modification of the building code, the floodplain development permit application and Ledge Light’s B100a form.

Residential permits

The applicant gives an estimated value covering all labor and materials, including electrical, gas, mechanical and plumbing equipment, and the building official sets the final valuation; a figure that looks low means the permit is denied unless detailed estimates support it. Section 150.015 lists the square-foot values the Town uses as its yardstick for home work: $150 per sq ft of building area for a new house, $55 for decks, interior alterations and unfinished accessory buildings over 600 sq ft, $65 for covered porches and decks, $25 for unfinished accessory buildings under 600 sq ft and $15 for in-ground pools. These are construction values, not fees.

A pool shows how one project can need several approvals. The department lists a building permit with the contractor’s license and workers’ compensation proof, a zoning permit with a site plan giving distances to the property lines, a Ledge Light B100a review if a septic system serves the house, and a wetlands permit if the pool is within 300 feet of a wetland. The file also needs the pool’s specifications, the floating and door alarm specifications, the fence, gate latch and gate swing details, and the filter and cover specifications.

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

Commercial permits

Commercial renovations are valued at $55 per sq ft, and new commercial buildings by the International Code Council’s valuation table or the contract amount, not counting sprinklers, kitchen hoods, wiring, alarms, plumbing or mechanical equipment, which take their own permits. Since July 1, 2023 the Fire Marshal has charged a plan review fee on commercial properties of 65% of the building permit fee, and a commercial project over $500,000 also pays a plan review fee based on the current ICC fee schedule. Every commercial project needs a zoning permit, and those in the CA and CB zones go through architectural design review.

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

What comes before the building permit

• Zoning permit: $300 for a new single-family house, $75 for single-family alterations, $100 for an addition under 1,000 sq ft and $200 above that, $50 for a pool, and $20 or $50 for an accessory structure under or over 150 sq ft, each plus the $60 state fee.
• Coastal area management: a coastal site plan for a new house or addition is $200, filed with two full-size plan sets and one 11 by 17 inch set.
• Wetlands: within 300 feet of a wetland or watercourse, agent or Agency approval may be needed.
• Septic and wells: Ledge Light’s B100a review, for an initial $25 fee.
• Beach associations: Giants Neck, Crescent Beach and Black Point properties also need the association’s zoning approval.

The Land Use Department has warned of a scam in which fake officials email applicants demanding wire transfers; it never requires online or electronic payment for zoning, planning or wetlands fees.

East Lyme permit costs and fees

Section 150.015 sets the building fee at $15 per thousand or portion of value, with a minimum of $30 for the first thousand, and adds the state education fee of 26 cents per $1,000; the code says the permit fee includes the certificate of approval. The department’s page puts it as $30 for the first $1,000 and $15 for each additional $1,000, plus the state fee and, for commercial permits, the Fire Marshal fee.

The re-inspection charge applies when cited code items are still not fixed, when the work is not ready on arrival, when no one meets the inspector without prior arrangement (the inspector may waive it in an emergency), or when the scope changed without the building official’s approval. Zoning, coastal and wetlands fees are separate and paid to the land use offices.

Trade permits and who may pull them

Electrical, plumbing, gas and mechanical permits are filed on MGO Connect like the building permit and figured on the same value-based rate. For a new house the building permit valuation counts those systems as part of the total, while new commercial buildings value sprinklers, hoods, wiring, alarms, plumbing and mechanical equipment separately. Electrical work needs Eversource clearance after the inspection; the department asks for at least 48 hours from the inspection for that.

Forms 7A and 7B cover an owner who is not, or is, acting as general contractor; which trade work an owner may do personally is set by state law.

How to apply for an East Lyme building permit

Review, corrections and what causes delay

No permit issues until both the building and zoning officials sign off and the Tax Collector confirms taxes are paid, so a missing zoning permit or an overdue tax bill stops a file before plan review. A valuation the building official judges too low leads to denial unless you can produce detailed estimates. Beach association approval, a wetlands review within 300 feet of water and an open Ledge Light review are the other common waits. State law requires the department to issue or refuse a permit within 30 days of the application date.

A building in a flood zone also needs a floodplain development permit before any work starts, and it may not be used until a certificate of compliance is issued. At the lowest-floor stage, including any basement, a registered design professional must provide elevation documentation before construction goes higher.

Inspections in East Lyme

Inspections are booked through MGO Connect; allow 24 to 48 hours, and call 860-691-4114 at once to cancel. The department’s inspection sheet lists the stages: reinforcement in retaining walls, footings and piers, foundations with the UFER ground in place, under-slab work including radon parts, backfill, sheathing and nailing, framing, window flashing, fireplace throat, fire-rated penetrations, rough plumbing with a water test on plastic drain lines, shower pans, temporary and rough electrical, and the final. Approved plans and the installation manuals must be on site at each visit.

A certificate of approval is mailed to the homeowner at least one week after the inspection. A certificate of occupancy is issued at least three days after the department has every required paper: the permit to discharge, a concrete statement, insulation R-values, the blower door and duct test, and, where it applies, the beach community’s zoning certificate.

East Lyme permit search and official resources

East Lyme keeps its building records as paper street files, with no digital archive. To search them, visit the office during business hours; the department gives no record information by email, fax or phone. Assessor field cards are on the Vision Appraisal site, and the owner of a single-family house can ask in writing for the building plans back once the certificate of occupancy has issued. The Town is in the National Flood Insurance Program with flood maps dated August 5, 2013, and chapter 151 of its code includes rules for coastal high hazard areas.

• East Lyme Building Department: fees, records and approvals
• East Lyme online building permits (MGO Connect)
• East Lyme waivers, forms and land use permits
• East Lyme building permit exemptions (2022 code)
• East Lyme building inspection requirements
• East Lyme floodplain development permit application
• East Lyme Code of Ordinances section 150.015: building and demolition fees
• East Lyme Zoning Department
• East Lyme zoning fees
• East Lyme Inland Wetlands Agency
• Ledge Light Health District in East Lyme
• East Lyme Fire Marshal
• FEMA Community Status Book for Connecticut
• Connecticut Department of Consumer Protection: licenses and registrations

East Lyme building permit FAQ

Who issues building permits in East Lyme?

The Building Department at Town Hall, 108 Pennsylvania Avenue, Niantic; call 860-691-4114.

How much is a building permit in East Lyme?

$30 for the first $1,000 of value and $15 for each further $1,000, plus 26 cents per $1,000 for the state; commercial jobs add the Fire Marshal’s 65% plan review fee.

Can I apply online?

Yes. Permits and inspection requests go through MGO Connect.

Does my project need a zoning permit too?

Sheds, pools, additions, renovations, new homes and all commercial projects need one, and the zoning official signs off every building permit.

I live in a beach association. What changes?

Giants Neck, Crescent Beach and Black Point zone their own areas, so you need their approval as well, and their zoning certificate before a certificate of occupancy.

How do I see old building permits for a house?

Visit the Building Department; the street files are on paper and are not searched by phone or email.

Simplify East Lyme 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.

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