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§ 02
When a permit is required
Permit triggers and exempt work for Amherst
A building permit is required for all construction, alteration, and renovation within the Town of Amherst.
One-story detached accessory structures (tool sheds, playhouses) with floor area not greater than 120 sq. ft.
Fences not exceeding 7 feet in height
Retaining walls not over 4 feet measured from bottom of footing to top of wall
Water tanks supported directly on grade with capacity not greater than 5,000 gallons and height-to-diameter ratio not greater than 2:1
Sidewalks and driveways not more than 30 inches above adjacent grade
Prefabricated above-ground swimming pools less than 24 inches deep and less than 5,000 gallons
Window awnings (supported by exterior wall) projecting no more than 54 inches from the wall
Shade cloth structures for nursery or agricultural purposes
Greenhouses with plastic film coverings
Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work
Non-fixed and movable fixtures, cases, racks, counters, and partitions not over 5 feet 9 inches in height
Playground equipment on detached 1- and 2-family residential parcels
Temporary motion picture, TV, and theater stage sets and scenery
- Exempt One-story detached accessory structures (tool sheds, playhouses) with floor area not greater than 120 sq. ft.
- Exempt Fences not exceeding 7 feet in height
- Exempt Retaining walls not over 4 feet measured from bottom of footing to top of wall
- Exempt Water tanks supported directly on grade with capacity not greater than 5,000 gallons and height-to-diameter ratio not greater than 2:1
- Exempt Sidewalks and driveways not more than 30 inches above adjacent grade
- Exempt Prefabricated above-ground swimming pools less than 24 inches deep and less than 5,000 gallons
- Exempt Window awnings (supported by exterior wall) projecting no more than 54 inches from the wall
- Exempt Shade cloth structures for nursery or agricultural purposes
- Exempt Greenhouses with plastic film coverings
- Exempt Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work
- Exempt Non-fixed and movable fixtures, cases, racks, counters, and partitions not over 5 feet 9 inches in height
- Exempt Playground equipment on detached 1- and 2-family residential parcels
- Exempt Temporary motion picture, TV, and theater stage sets and scenery
Note: Ordinary repairs (like-for-like replacements, finish work) do not require a permit. Zoning requirements may still apply to exempt-from-permit work. Amherst adopted updated FEMA Flood Insurance Rate Maps in January 2023 with one-foot contour precision. Verify flood zone status before applying.
Required documents
- Completed online application
- Workers' Compensation Insurance Affidavit (for all contractor applicants)
- Homeowner Exemption Affidavit (if applicable)
- Site plan / plot plan (new construction and additions)
- Construction plans (architectural drawings, structural calculations for larger projects)
- Design professional construction control affidavits (commercial / larger residential per 780 CMR)
- Pool safety compliance documentation (for pool permits)
- Smoke/CO detector compliance documentation (residential)
- Building code
- Massachusetts State Building Code (780 CMR) -- 10th Edition (2021 IBC/IRC base) effective July 1, 2025
- Permit validity
- Permit lapses if work does not commence within 6 months of permit issuance or if work is suspended for 6 months.
- Owner-builder
- The owner of a detached 1- or 2-family dwelling who resides or intends to reside in the home may pull the building permit themselves without a CSL and act as their own general contractor. The homeowner assumes full liability for code compliance.
- Contractor requirements
- Construction Supervisor License (CSL) required for structural work on buildings over 35,000 cubic feet. Home Improvement Contractor (HIC) required for residential renovation projects over $1,000 on 1-4 family homes.
Source: Inspection Services (Building Division) -- part of Conservation & Development Department ↗
§ 03
Application process
Typical processing: 30 calendar days from receipt of complete application
- 01 Create an account at amherstma.portal.opengov.com.
- 02 Select the applicable permit category (building, electrical, plumbing, gas, etc.).
- 03 Complete the online application form. Upload all required documents directly in the portal.
- 04 Pay applicable fee online at time of submission.
- 05 Application is reviewed by the Building Division. Applicant receives notifications as the application progresses.
- 06 Upon approval, permit is issued electronically. Print and post at job site before commencing work.
- 07 Schedule inspections by calling 413-259-3030.
- 08 Final inspection must be passed before Certificate of Occupancy is issued.
Typical processing time: 30 calendar days from receipt of complete application
Source: Inspection Services (Building Division) -- part of Conservation & Development Department ↗
§ 04
Fee schedule
Effective July 2014 (note: may be under revision; verify before applying)
Fee type
Amount
01
Minimum permit fee
$30.00 for alterations and additions
02
Permit fee formula
New residential (1-2 family): $0.55/sq. ft. first unit, $0.35/sq. ft. additional units. Alterations: $10.00 per $1,000 of estimated construction cost. Commercial: $0.65/sq. ft.
03
Penalty (no permit)
Double the normal permit fee if work is commenced before permit issuance
Fees change periodically. Confirm at the official fee schedule ↗ (effective July 2014 (note: may be under revision; verify before applying)) before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- 413-259-3030 (phone)
- Inspection hours
- Monday through Friday, 8:00 a.m. -- 4:30 p.m.
Typical sequence: Standard required inspection stages: 1) Foundation/footing inspection (before backfill), 2) Framing inspection (after rough framing, before insulation/sheathing), 3) Electrical rough-in, 4) Plumbing/gas rough-in, 5) Insulation inspection (before drywall), 6) Final inspection (all work complete), 7) Certificate of Occupancy. Multi-Family Certificate of Inspection Program available for periodic re-inspections of multifamily rental properties (3+ units).
Source: Inspection Services (Building Division) -- part of Conservation & Development Department ↗
§ 06
Frequently asked
Common questions about Amherst permits
01 Do I need a building permit in Amherst, MA? ▸
A building permit is required for all construction, alteration, and renovation within the Town of Amherst.
02 How much does a building permit cost in Amherst, MA? ▸
Building permit fees in Amherst, MA are set by the local building department and vary by project type and valuation. The minimum permit fee is $30.00 for alterations and additions. Fees are calculated as: New residential (1-2 family): $0.55/sq. ft. first unit, $0.35/sq. ft. additional units. Alterations: $10.00 per $1,000 of estimated construction cost. Commercial: $0.65/sq. ft..
03 How do I apply for a building permit in Amherst, MA? ▸
To apply for a building permit in Amherst, MA, follow these steps: 1. Create an account at amherstma.portal.opengov.com. 2. Select the applicable permit category (building, electrical, plumbing, gas, etc.). 3. Complete the online application form. Upload all required documents directly in the portal. 4. Pay applicable fee online at time of submission. 5. Application is reviewed by the Building Division. Applicant receives notifications as the application progresses. 6. Upon approval, permit is issued electronically. Print and post at job site before commencing work. 7. Schedule inspections by calling 413-259-3030. 8. Final inspection must be passed before Certificate of Occupancy is issued.
04 How long does it take to get a building permit in Amherst, MA? ▸
Building permit processing times in Amherst, MA typically run 30 calendar days from receipt of complete application. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Amherst, MA? ▸
Not all construction work requires a permit in Amherst, MA. The following work is generally exempt: One-story detached accessory structures (tool sheds, playhouses) with floor area not greater than 120 sq. ft.; Fences not exceeding 7 feet in height; Retaining walls not over 4 feet measured from bottom of footing to top of wall; Water tanks supported directly on grade with capacity not greater than 5,000 gallons and height-to-diameter ratio not greater than 2:1; Sidewalks and driveways not more than 30 inches above adjacent grade; Prefabricated above-ground swimming pools less than 24 inches deep and less than 5,000 gallons; Window awnings (supported by exterior wall) projecting no more than 54 inches from the wall; Shade cloth structures for nursery or agricultural purposes; Greenhouses with plastic film coverings; Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work; Non-fixed and movable fixtures, cases, racks, counters, and partitions not over 5 feet 9 inches in height; Playground equipment on detached 1- and 2-family residential parcels; Temporary motion picture, TV, and theater stage sets and scenery. Note: Ordinary repairs (like-for-like replacements, finish work) do not require a permit. Zoning requirements may still apply to exempt-from-permit work. Amherst adopted updated FEMA Flood Insurance Rate Maps in January 2023 with one-foot contour precision. Verify flood zone status before applying. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Amherst, MA? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Amherst, MA via: 413-259-3030.
last verified April 2026
source Inspection Services (Building Division) -- part of Conservation & Development Department ↗
entry id permits/massachusetts/hampshire/amherst
Educational reference. Permit rules and fees change — confirm current requirements directly with Inspection Services (Building Division) -- part of Conservation & Development Department before applying. Jaspector is not legal advice.