City Building Permits

Waltham, MA Building Permit Guide

How to apply for a building permit in Waltham, Massachusetts. Permit authority, application steps, fees, and inspection requirements.

Massachusetts Middlesex County Updated March 2026

Permit Authority

All properties within the City of Waltham.

Department: Building Department
Address: 119 School Street, Government Center, 2nd Floor, Room 25, Waltham, MA 02451
Phone: (781) 314-3275
Website: https://www.city.waltham.ma.us/building-department

Online Permit Portal

Open No online portal

Platform: Paper-based, in-person submission • Account required: No • Submission: In-person only

Additional resources:

Application Process

Complete the building permit application on paper (regular paper accepted; all signatures required at time of drop-off).
Submit application in person at the Building Department counter, 119 School Street, Room 25.
Plans and supporting documentation may be submitted on thumb drive or CD (PDF format only) for projects requiring drawings.
Do not leave blank checks with applications.
Fees for small projects (roofing, siding, insulation, kitchen/bath remodel) may be paid upfront at time of submission.
Permit issued upon review and approval.
Post permit card at job site.
Schedule inspections by contacting the Building Department.

Typical processing time: Not published; contact department at (781) 314-3275.

Source: Building Department

General Requirements

Building permit required for all construction, alteration, repair, demolition, or change of occupancy per 780 CMR.

Required Documents

Building permit application (paper form)
Plans and supporting documentation on thumb drive or CD (PDF format only) for projects requiring drawings
All signatures required at time of submission

Permit validity: Work must commence within 6 months of permit issuance; work must be completed within 2 years (standard Massachusetts provision; verify with department).
Building code: 780 CMR 10th Edition (effective July 1, 2025)
Owner-builder: Owner-builders may obtain permits for own single-family residence.
Contractor requirements: All work must comply with 780 CMR (10th Edition as of July 1, 2025). CSL required for all licensed contractor work; HIC registration required for residential work on owner-occupied 1-4 unit properties.

Fees

Plan check fee: Included in permit fee
Permit fee formula: Residential building permit: $12.00 per $1,000 of estimated construction cost
Trade permit fee: Residential plumbing: $25.00 for first fixture; $10.00 for each additional fixture. Residential gas: $30.00 for first fixture; $15.00 for each additional fixture.
Payment note: Trench permit (residential, single): $50.00; residential multi-trench: $100.00 maximum. A proposal to increase gas and plumbing permit fees was under review by the City Council Ordinances and Rules Committee as of April 2025. Verify current rates with department before relying on figures above.

Fees change. Verify current amounts at the official fee schedule (effective Current schedule).

Work That Does NOT Require a Permit

Ordinary repairs to structures that do not affect structural elements, egress, fire protection systems, fire ratings, energy conservation, plumbing, gas, electrical, or other utilities
One-story detached accessory structures (tool sheds, playhouses, etc.) not exceeding 120 sq ft
Retaining walls not exceeding 4 feet in height measured from footing bottom to top
Water tanks on grade with capacity not exceeding 5,000 gallons and height-to-diameter ratio not exceeding 2:1
Sidewalks and driveways not more than 30 inches above adjacent grade, not over basement space, and not on an accessible route
Painting, wallpapering, tiling, carpeting, and similar finish work

Important: Waltham does not publish a municipality-specific extended exemption list; the statewide 780 CMR Section 105.2 governs. Confirm all edge cases with the Building Department.

Inspections

How to Schedule

(781) 314-3275 (phone)

Scheduling deadline: Contact Building Department for scheduling.
Inspection hours: Contact department for current hours.

Typical inspection sequence: Typical inspection sequence: Foundation / footing; Framing; Insulation (where applicable); Final building inspection. Trade inspections (electrical, plumbing, gas) are handled by separate trade inspectors and must be scheduled with the respective department.

Additional Resources

Building code: 780 CMR 10th Edition (effective July 1, 2025)
Verify contractor license: Massachusetts CSL License Lookup
Building Department
Board of Building Regulations and Standards
License lookup guide: Massachusetts Contractor License Requirements
Contract template: Massachusetts Homeowner-Contractor Agreement
Massachusetts hub: Massachusetts Contractor License & Permit Hub

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Building Department before applying.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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