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§ 02
When a permit is required
Permit triggers and exempt work for Winthrop
A building permit is required for any construction, alteration, demolition of a structure, or installation of a sign.
One-story detached accessory structures (sheds, playhouses) not exceeding 120 square feet without electrical, plumbing, or mechanical utilities
Fences not exceeding 7 feet in height
Retaining walls not over 4 feet in height measured from footing bottom to wall top, not supporting a surcharge
Ground-supported water tanks under 5,000 gallons with height-to-diameter ratio not exceeding 2:1
Sidewalks and driveways not more than 30 inches above adjacent grade and not over a basement
Painting, wallpapering, tiling, carpeting, cabinets, countertops, and similar finish work
Temporary motion picture, television, and theater stage sets and scenery
Prefabricated swimming pools under 24 inches deep and under 5,000 gallons, accessory to residential use
Agricultural nursery cloth shade structures without service systems
Swings and playground equipment accessory to detached 1-2 family dwellings
Window awnings on Group R-3 and U occupancies projecting not more than 54 inches
Non-fixed and movable fixtures, cases, racks, counters, and partitions not over 5 feet 9 inches in height
Greenhouses covered exclusively with plastic film
Ordinary repairs not affecting structure, egress, fire protection, fire ratings, energy conservation, plumbing, sanitary, gas, electrical, or other utilities
- Exempt One-story detached accessory structures (sheds, playhouses) not exceeding 120 square feet without electrical, plumbing, or mechanical utilities
- Exempt Fences not exceeding 7 feet in height
- Exempt Retaining walls not over 4 feet in height measured from footing bottom to wall top, not supporting a surcharge
- Exempt Ground-supported water tanks under 5,000 gallons with height-to-diameter ratio not exceeding 2:1
- Exempt Sidewalks and driveways not more than 30 inches above adjacent grade and not over a basement
- Exempt Painting, wallpapering, tiling, carpeting, cabinets, countertops, and similar finish work
- Exempt Temporary motion picture, television, and theater stage sets and scenery
- Exempt Prefabricated swimming pools under 24 inches deep and under 5,000 gallons, accessory to residential use
- Exempt Agricultural nursery cloth shade structures without service systems
- Exempt Swings and playground equipment accessory to detached 1-2 family dwellings
- Exempt Window awnings on Group R-3 and U occupancies projecting not more than 54 inches
- Exempt Non-fixed and movable fixtures, cases, racks, counters, and partitions not over 5 feet 9 inches in height
- Exempt Greenhouses covered exclusively with plastic film
- Exempt Ordinary repairs not affecting structure, egress, fire protection, fire ratings, energy conservation, plumbing, sanitary, gas, electrical, or other utilities
Note: Even when a building permit is not required, plumbing, electrical, gas, and mechanical work may still require trade-specific permits. Ordinary repairs not affecting structure, egress, fire protection, or building systems do not require a permit.
Required documents
- Completed permit application (paper form also available at town)
- Scope of work description
- Construction cost estimate
- Design plans (for structural work, must be stamped by MA-licensed architect or engineer)
- Valid Massachusetts Construction Supervisor License (CSL) or homeowner waiver
- Other documents as specified in the town Requirements sheets for specific work types
- Building code
- 780 CMR 9th Edition (2015 International Building Code with Massachusetts amendments)
- Permit validity
- Work must begin within six months of permit issuance. Once started, work must progress continuously to completion.
- Owner-builder
- Owner-builder exemption applies to owners of 1-2 family dwellings they own and occupy or intend to occupy. Homeowners assuming contractor role lose protections under the Homeowner Improvement Contractor Act.
- Contractor requirements
- Contractors must hold a valid Massachusetts Construction Supervisor License (CSL) for structures under 35,000 cubic feet. Separate permits required for plumbing, gas, and electrical work, each requiring Massachusetts-licensed trade contractors.
§ 03
Application process
Typical processing: Varies based on application completeness and plan review complexity. Typically 1-2 weeks for simple permits.
- 01 Visit winthropma.portal.opengov.com and register/log in.
- 02 Select the appropriate permit type.
- 03 Complete the application and upload required documents.
- 04 Submit application.
- 05 Building Department reviews the application and notifies applicant.
- 06 Pay permit fees as directed.
- 07 Permit is issued; post at job site before work commences.
- 08 Begin work within six months of permit issuance.
- 09 Once work begins, it must progress continuously toward completion.
- 10 Schedule inspections at required construction stages.
- 11 For new construction or change of occupancy, apply for Certificate of Occupancy.
Typical processing time: Varies based on application completeness and plan review complexity. Typically 1-2 weeks for simple permits.
§ 04
Fee schedule
Effective 2022 (current fee schedule should be verified with Building Department)
Fee type
Amount
01
Minimum permit fee
Contact Building Department for current minimum fee
02
Permit fee formula
Based on estimated construction cost or square footage of floor area for new construction. Typical Massachusetts municipalities charge $10-$15 per $1,000 of estimated cost. Confirm current Winthrop rates with Building Department at 617-846-1852.
03
Trade permit fee
Separate fees for plumbing, gas, and electrical permits; contact Building Department for current rates.
04
Penalty (no permit)
Penalties apply for work performed without a permit.
Payment processed through the OpenGov portal or as directed by Building Department.
Fees change periodically. Confirm at the official fee schedule ↗ (effective 2022 (current fee schedule should be verified with Building Department)) before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- 617-846-1852 (phone)
- OpenGov portal (online)
- Scheduling deadline
- Contact Building Department to schedule inspections.
- Inspection hours
- Monday and Wednesday: 8:00 a.m. to 4:30 p.m.; Tuesday and Thursday: 8:00 a.m. to 7:00 p.m.
Typical sequence: Standard inspection stages: foundation (before pouring), framing (before closing walls), mechanical rough-ins (electrical, plumbing, gas before covering), and final inspection (all work complete).
§ 06
Frequently asked
Common questions about Winthrop permits
01 Do I need a building permit in Winthrop, MA? ▸
A building permit is required for any construction, alteration, demolition of a structure, or installation of a sign.
02 How much does a building permit cost in Winthrop, MA? ▸
Building permit fees in Winthrop, MA are set by the local building department and vary by project type and valuation. The minimum permit fee is Contact Building Department for current minimum fee. Fees are calculated as: Based on estimated construction cost or square footage of floor area for new construction. Typical Massachusetts municipalities charge $10-$15 per $1,000 of estimated cost. Confirm current Winthrop rates with Building Department at 617-846-1852..
03 How do I apply for a building permit in Winthrop, MA? ▸
To apply for a building permit in Winthrop, MA, follow these steps: 1. Visit winthropma.portal.opengov.com and register/log in. 2. Select the appropriate permit type. 3. Complete the application and upload required documents. 4. Submit application. 5. Building Department reviews the application and notifies applicant. 6. Pay permit fees as directed. 7. Permit is issued; post at job site before work commences. 8. Begin work within six months of permit issuance. 9. Once work begins, it must progress continuously toward completion. 10. Schedule inspections at required construction stages. 11. For new construction or change of occupancy, apply for Certificate of Occupancy.
04 How long does it take to get a building permit in Winthrop, MA? ▸
Building permit processing times in Winthrop, MA typically run Varies based on application completeness and plan review complexity. Typically 1-2 weeks for simple permits.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Winthrop, MA? ▸
Not all construction work requires a permit in Winthrop, MA. The following work is generally exempt: One-story detached accessory structures (sheds, playhouses) not exceeding 120 square feet without electrical, plumbing, or mechanical utilities; Fences not exceeding 7 feet in height; Retaining walls not over 4 feet in height measured from footing bottom to wall top, not supporting a surcharge; Ground-supported water tanks under 5,000 gallons with height-to-diameter ratio not exceeding 2:1; Sidewalks and driveways not more than 30 inches above adjacent grade and not over a basement; Painting, wallpapering, tiling, carpeting, cabinets, countertops, and similar finish work; Temporary motion picture, television, and theater stage sets and scenery; Prefabricated swimming pools under 24 inches deep and under 5,000 gallons, accessory to residential use; Agricultural nursery cloth shade structures without service systems; Swings and playground equipment accessory to detached 1-2 family dwellings; Window awnings on Group R-3 and U occupancies projecting not more than 54 inches; Non-fixed and movable fixtures, cases, racks, counters, and partitions not over 5 feet 9 inches in height; Greenhouses covered exclusively with plastic film; Ordinary repairs not affecting structure, egress, fire protection, fire ratings, energy conservation, plumbing, sanitary, gas, electrical, or other utilities. Note: Even when a building permit is not required, plumbing, electrical, gas, and mechanical work may still require trade-specific permits. Ordinary repairs not affecting structure, egress, fire protection, or building systems do not require a permit. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Winthrop, MA? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Winthrop, MA via: 617-846-1852, OpenGov portal. Contact Building Department to schedule inspections..
last verified April 2026
source Building Department / Inspectional Services ↗
entry id permits/massachusetts/suffolk/winthrop
Educational reference. Permit rules and fees change — confirm current requirements directly with Building Department / Inspectional Services before applying. Jaspector is not legal advice.