Boston, Massachusetts Building Department 2026: Permits, Inspections & Services

The Boston, Massachusetts Building Department is operated through the City of Boston’s Inspectional Services Department (ISD). It handles building permits, construction plan reviews, inspections, zoning-related permitting, and code enforcement for properties within Boston’s jurisdiction. You can apply for many permits online, check application progress, and request inspections without making an initial office visit.

Boston Inspectional Services: Contact Information

Boston ISD serves neighborhoods including Dorchester, Roxbury, South Boston, East Boston, Jamaica Plain, Hyde Park, Mattapan, Roslindale, Charlestown, Brighton, and other areas within city limits. A Boston mailing address alone does not establish permitting jurisdiction; confirm the property’s municipality before applying.

Building Permits and Services Available

Other services include demolition permitting, foundation work, building-code enforcement, permit records, and housing-related inspections. Fire-alarm and fire-prevention approvals may involve the Boston Fire Department separately.

Which Boston Building Permit Do You Need?

Boston distinguishes between minor work and larger projects involving structural or use changes. Choosing the correct application is important because the required plans, review process, and fees differ.

How to Apply for a Boston Building Permit Online

1. Open the official permitting website. Visit Boston Permitting and select the Inspectional Services online portal.
2. Create or access your account. Register with your email address or sign in. Returning users may need to reset their password to reactivate an existing account.
3. Select the permit type. Choose the appropriate building, trade, or other application based on the proposed work.
4. Enter the property and project information. Provide the correct Boston property address, work description, estimated cost, and applicant or contractor details.
5. Prepare and upload documents. Attach the required plans, contractor credentials, supporting approvals, and other project-specific documents.
6. Review and submit. Check names, addresses, project descriptions, and uploads carefully. Some applications cannot be edited until ISD completes an initial review.
7. Respond to review comments. Watch your portal account and email for additional documents, zoning issues, plan corrections, or payment instructions.
8. Pay and obtain the issued permit. Follow the official payment instructions. Begin regulated construction only after approval and permit issuance.

Some complex applications, including certain new construction projects, require in-person intake or additional building and zoning reviews even when started online.

Documents to Prepare Before Applying

• Property address and a clear description of the proposed work.
• Estimated construction cost, including labor and materials.
• Existing and proposed drawings or plans, when required.
• Site plans, elevations, structural details, and relevant engineering documentation.
• Contractor license and registration information, when applicable.
• Owner authorization or owner-builder documentation, where permitted.
• Applicable zoning, fire, historic preservation, or other agency approvals.

For new construction, Boston’s published guidance identifies stamped professional plans and separate zoning and building reviews. Larger projects may require site, structural, sprinkler, fire-alarm, electrical, plumbing, HVAC, energy, and accessibility documentation.

Boston Building Permit Fees in 2026

Boston publishes the following fee structures for its standard short-form and long-form building permits:

Example: For work valued at $20,000, these published rates produce a $220 short-form fee or a $250 long-form fee, before any additional applicable charges or calculation rules.

Other permits, zoning reviews, and special services can carry different charges. The final amount is determined by the City during the application process.

Source: Boston Short-Form Permit and Boston Long-Form Permit. Verify the displayed fee at checkout before payment.

How to Schedule a Building Inspection in Boston

Inspections are required at appropriate stages of permitted construction. Most projects need at least a rough inspection and a final inspection; more complex projects require additional inspection stages.

Option 1: Schedule by Phone

1. Call 617-635-5300.
2. Provide the permit number and property address.
3. Give the contact person’s name and telephone number.
4. Specify the inspection type and preferred date.
5. Wait for the inspector to confirm scheduling arrangements.

Boston states that an inspector generally contacts the designated person within 48 hours to finalize the inspection date. This is a contact target, not a guarantee that the inspection itself will occur within 48 hours.

Option 2: Request Through the Online Portal

1. Open the Inspectional Services portal using Boston Permitting.
2. Sign in and locate the relevant permit.
3. Open its inspection or permit activity options.
4. Select the required inspection type, such as rough, final, footing, or insulation.
5. Enter contact information and any useful jobsite notes.
6. Submit the request and check for confirmation.

Electrical and plumbing inspection contacts must meet Boston’s applicable licensed-contractor requirements. Follow the portal instructions if a permit does not appear in your account’s recent activity.

How to Check a Boston Building Permit Status

You can check permit applications and associated records using the City’s permitting resources.

1. Open Boston Permitting.
2. Select the option to check the status of an Inspectional Services or Boston Fire permit.
3. Use the available permit number, property address, or other search information requested by the system.
4. Review the application’s status and available review or inspection details.
5. If the record is missing or unclear, contact ISD at 617-635-5300.

For older permits, use the historical permit records link on Boston’s permitting page. Historical records may not have the same level of detail as current online applications.

Building Codes and Zoning Rules for Boston

Boston building work is governed by the Massachusetts State Building Code, relevant city zoning requirements, and other applicable regulations.

In 2026, the governing Massachusetts building code is the 10th Edition of 780 CMR, based on amended 2021 International Codes. It initially took effect October 11, 2024; the transition allowing use of the ninth edition ended June 30, 2025.

The 10th Edition contains Massachusetts-specific amendments covering residential and commercial construction, existing buildings, mechanical systems, and other subjects. Separate electrical, plumbing, fire, and energy requirements may also apply.

Read the official Massachusetts 10th Edition Building Code and amendments.

Check Zoning Before Designing Your Project

Boston zoning can affect additions, new residential units, building height, setbacks, business use, parking, and changes in occupancy. A building-code-compliant design does not automatically satisfy zoning requirements.

1. Visit the Boston Zoning Lookup Guide.
2. Open the linked official zoning viewer.
3. Search the property address or parcel number.
4. Review the zoning district, applicable provisions, and any special restrictions.
5. Confirm unclear requirements with ISD before submitting construction plans.

Projects needing zoning relief may require additional review or a Zoning Board of Appeal process before a building permit can be issued.

Homeowners, Contractors, and Special Projects

Can a Boston Homeowner Apply for a Permit?

For certain work on an owner-occupied one- or two-family home, an eligible owner performing the work personally may apply under homeowner provisions. Boston’s long-form guidance indicates that owners of units in buildings containing three or more dwellings must hire a licensed contractor for applicable work.

Owner-builder eligibility does not automatically authorize a homeowner to perform regulated electrical, plumbing, or gas work. Confirm trade licensing requirements separately.

Do Permits Expire?

Boston’s short-form guidance states that work must generally begin within six months after permit issuance. Certain projects may qualify for an additional 180-day extension. Extensions are not automatic, and inactivity or other circumstances may affect permit validity.

What About Historic Buildings?

Projects in designated historic districts or involving protected landmarks may need preservation approvals in addition to building permits. Exterior alterations should be reviewed for applicable preservation requirements before work begins.

What About Legal Occupancy?

Building-permit approval and legal occupancy are not the same thing. Projects changing a building’s use or occupancy may require documentation, inspections, and additional approvals. Boston provides a separate Record of Legal Occupancy guide.

Common Permit Problems and What to Do

Official Boston Building Department Resources

• Inspectional Services Department — contacts, services, and departmental information.
• Boston Permitting — online application, portal access, permit status, and historical records.
• Short-Form Building Permit — eligibility, fees, and application instructions.
• Long-Form Building Permit — major alterations and associated requirements.
• Inspection Scheduling — phone and online procedures.
• ISD Division Contacts — building, electrical, plumbing, and related divisions.
• Massachusetts Building Code — official 10th Edition reference and amendments.

For projects outside Boston in other Massachusetts municipalities, see our Billerica building permit guide and Beverly building permit guide. Their local offices and application systems are separate from Boston ISD.

Frequently Asked Questions

Information reviewed: October 9, 2026. This guide is an independent informational resource and is not affiliated with or operated by the City of Boston. Permit rules, fees, office hours, and procedures can change. Confirm project-specific requirements with the responsible agency before starting work.