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When a permit is required
Permit triggers and exempt work for Deerfield
A building permit is required for new construction, additions, renovations affecting structural members, roofing/siding replacement exceeding 25%, window/door replacement, decks, pools, and similar work.
- 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 Oil derricks
- Exempt Retaining walls not over 4 feet in height (measured from bottom of footing to top of wall), unless supporting a surcharge or impounding Class I, II, or IIIA liquids
- Exempt Water tanks supported directly on grade, capacity not greater than 5,000 gallons, with height-to-diameter ratio not greater than 2:1
- Exempt Sidewalks and driveways not more than 30 inches above adjacent grade, not over any basement or story below, and not part of an accessible route
- Exempt Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work
- Exempt Temporary motion picture, television, and theater stage sets and scenery
- Exempt Above-ground residential swimming pools less than 24 inches deep or not greater than 5,000 gallons
- Exempt Shade cloth structures for agricultural use (excluding attached service systems)
- Exempt Swings and playground equipment accessory to single- or two-family dwellings
- Exempt Window awnings in residential and utility occupancies projecting not more than 54 inches from the exterior wall
- Exempt Movable cases, counters, and partitions not over 5 feet 9 inches in height
- Exempt Plastic-covered greenhouse structures (excluding large assembly occupancies and attached service systems)
- Exempt Ordinary repairs and routine maintenance that do not affect structural elements, fire protection systems, or regulated systems
Note: Exemption from a building permit does not exempt work from electrical, plumbing, or gas permits. Conservation Commission review may be required for work within 100 feet of a wetland.
- Completed application form (electronic)
- Workers' Compensation Affidavit
- CSL number and license documentation (contractor projects)
- HIC registration (residential improvement work)
- Plot plan/site plan showing lot, existing and proposed structures, distances to lot lines
- Construction drawings (two sets for new construction and significant alterations)
- Building code
- Massachusetts State Building Code (780 CMR, 10th Edition as of July 1, 2025; based on 2021 IBC)
- Permit validity
- All permits valid for six months from date of issuance per 780 CMR.
- Owner-builder
- Homeowner exemption available for one- or two-family dwelling at primary residence without CSL.
- Contractor requirements
- Construction Supervisor License (CSL) required for contractor-supervised work on regulated structures. All contractors must possess a 780 CMR code book (9th or 10th Edition).
Application process
Typical processing: Up to 30 days for initial review.
- 01 Confirm zoning compliance with Deerfield Zoning Bylaws. Special permits or variances must be approved before building permit issuance.
- 02 Register or log in to PermitEyes at https://permiteyes.us/deerfield/loginuser.php
- 03 Complete the online permit application and select the appropriate permit type.
- 04 Upload required documents: completed application form, Workers' Compensation Affidavit, CSL number and license documentation, HIC registration, plot plan/site plan, construction drawings (two sets for new construction).
- 05 Submit and pay fees electronically through PermitEyes.
- 06 Department reviews and issues or denies permit (up to 30 days).
- 07 Post issued permit on site; work cannot commence before permit is issued.
- 08 Schedule inspections through PermitEyes or by calling the department.
Typical processing time: Up to 30 days for initial review.
Source: Inspection Services ↗
Required inspections
Scheduling and sequence
- PermitEyes portal (online)
- 413-665-1400 ext. 108 or 110 (phone)
- Inspection hours
- Monday-Friday, 9:00 AM - 4:00 PM (office); individual inspectors by appointment
Typical sequence: Required inspections include: footing and foundation (before backfill), framing (before insulation/drywall), insulation and energy code compliance (where applicable), final building inspection, electrical rough and final, plumbing rough and final, gas rough and final, Certificate of Occupancy (after all finals completed within 30 days).
Source: Inspection Services ↗
Frequently asked
Common questions about Deerfield permits
01 Do I need a building permit in Deerfield, MA? ▸
02 How do I apply for a building permit in Deerfield, MA? ▸
03 How long does it take to get a building permit in Deerfield, MA? ▸
04 What work is exempt from building permits in Deerfield, MA? ▸
05 How do I schedule a building inspection in Deerfield, MA? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Inspection Services before applying. Jaspector is not legal advice.