Apply, Inspect and Close a Dennis Building Permit Without Missing Historic, Wetland, Septic or Zoning Approval
Dennis changed permitting systems on January 13, 2025. New permit applications and inspection requests now use the Town’s OpenGov portal. Older EnerGov permits need a different access step through the Building Department.
This guide explains the exact local workflow, same-day inspection cutoff, final as-built requirement, 2026 fees, historic-district review, wetland screening, zoning decisions and permit-closeout steps in simple language.
Choose the Exact Dennis Permit Task
Dennis Next-Step Finder
Select the situation closest to your project.
Dennis Building Department Contact Information
Confirm the Dennis Village, Parcel and Property Overlays
Find the property
Use the Town GIS to confirm the address, map/parcel, lot boundaries and visible improvements.
Check every overlay
Review zoning, FEMA flood information and historic-district mapping before preparing a site plan.
Do not rely on a mailing label
Dennis includes several villages. Use the legal parcel and Town map rather than assuming requirements from “Dennis” in the postal address.
Match the Project to the Correct Dennis Review
Project |
Start with |
Prepare first |
Local dependency to check |
|---|---|---|---|
New house or commercial building |
Building + zoning |
Certified site plan, complete plans, energy documents, utilities and contractor credentials |
Historic district, Conservation, Health/septic, floodplain, stormwater and road access |
Addition, garage, porch or deck |
Building permit |
Plot plan, setbacks, structural drawings and complete project description |
Septic reserve area, historic exterior review and wetland buffer |
Interior remodel or finished basement |
Building + trades |
Existing/proposed floor plans, room uses, egress and trade scope |
Bedroom count, legal use, septic capacity and smoke/CO protection |
Added bedroom or converted sleeping room |
Health review first |
Existing septic information and proposed floor plan |
Approved sewage-flow capacity and bedroom count |
Roof, siding, windows or exterior doors |
Building permit |
Work area, materials, product information and contractor details |
Historic-district approval for exterior changes |
Pool or spa |
Building + trades |
Site plan, barrier, equipment, electrical and plumbing information |
Setbacks, septic, wetland buffer and historic district |
Electrical service, circuits or solar |
Electrical permit |
Licensed electrician and exact system scope |
Building permit, structural review and historic solar approval |
Plumbing, gas, boiler or water heater |
Plumbing/gas permit |
Licensed installer and fixture/appliance details |
Building, Health or Fire approval where applicable |
Shed, fence, sign or small exterior feature |
Zoning/historic check |
Location, dimensions, materials and plot plan |
Old King’s Highway or South Dennis Historic approval |
Demolition |
Building + historic/Health |
Structure information, utility disconnections and site-restoration plan |
Historic review, septic abandonment, hazardous materials and Conservation |
Driveway, utility trench or work in a Town road |
Engineering review |
Location, dimensions, drainage and traffic/access information |
Road Opening Permit and zoning/site-plan coordination |
Commercial alteration over 35,000 cubic feet |
Construction control |
Construction-control checklist and registered-professional documents |
Fire, accessibility, occupancy and final construction-control filing |
Apply in the Order Dennis Reviews the Project
Confirm zoning and property constraints
Check the mapped district, allowed use, setbacks, parking, lot conditions, historic overlay, FEMA information and wetland proximity.
Clear earlier approvals
Contact Historic, Conservation, Health, Planning or Engineering when the project affects exterior appearance, wetlands, septic capacity, use, access or drainage.
Open the correct OpenGov application
Choose the permit type matching the real work. Separate building, electrical, plumbing, gas and sheet-metal permits may be required.
Create or sign into the customer account
Use an email address that will be monitored for correction notices, payment requests, permits and inspection updates.
Enter the property and scope accurately
Match the address and map/parcel to Town records. Describe every structure, trade, exterior change and change of room use.
Upload a complete review package
Provide plans, plot plan, owner authorization, workers’ compensation form, contractor credentials and department approvals required by the project.
Pay the Town-calculated fee
Confirm the residential or commercial category, total square footage, fixture count, permit type and any historic, stormwater or zoning charge.
Monitor the portal for corrections
Read every request, revise the correct documents and upload one coordinated response.
Wait for formal permit issuance
Do not start regulated work because an application was submitted or a review was marked complete. Confirm that the permit is issued.
Keep the permit active
The Town notes that a permit may expire when work does not commence within 180 days unless an extension is granted under the applicable code.
Prepare These Items Before Starting OpenGov
Property and people
- Property address
- Map and parcel number
- Village and zoning district
- Owner’s legal name
- Applicant contact information
- Contractor license information
- Owner authorization
- Workers’ compensation form
Plans and approvals
- Clear scope of work
- Accurate square footage
- Plot or site plan
- Existing/proposed floor plans
- Structural details
- Energy-code information
- Historic or Conservation decision
- Health/septic approval where needed
Show Enough Information to Prove Zoning and Site Compliance
Existing conditions
- Property boundaries
- Existing buildings
- Driveways and parking
- Wells and septic areas
- Wetlands or water features
- Easements and utilities
Proposed work
- New footprint
- Setback dimensions
- Building height and use
- Decks, stairs and patios
- New driveway or grading
- Structures to be removed
No Building Permit Can Be Issued When the Plans Conflict With the Dennis Zoning Bylaw
Zoning determination
Use this route when the allowed use, legal bedrooms, setbacks, lot status or nonconforming condition is unclear.
2026 fee: $50.
Zoning Board of Appeals
Variances, appeals and special permits may require a formal ZBA application before the building permit can proceed.
Planning Board
Site-plan approval, subdivisions, certain commercial projects and other land-use reviews may require Planning Board action.
Exterior Work May Need Historic Approval Before the Building Permit
Old King’s Highway Regional Historic District
The local committee reviews exterior changes to buildings and structures, fences, signs, new construction and demolition.
- New residential building: $60
- New commercial building: $97
- Addition, alteration or shed: $30
- Fence or sign: $30
- Postage and handling: $10
South Dennis Historic District
Properties within this local district may need approval for new buildings, exterior additions, alterations, sheds, fences and similar visible work.
- New building: $60
- Addition or alteration: $30
- Shed, fence or similar small work: $30
- Postage and handling: $10
Contact Conservation Before Designing Near Wetlands, Brooks or Drainage Areas
100 feet from a wetland
The Town’s current fee book identifies building, site alteration or landscaping within 100 feet of a wetland as work that may require Conservation review.
200 feet from a brook
Projects within 200 feet of a brook or involving regulated drainage issues should be screened with the Conservation Agent.
Ask before final plans
Have the address, project description, site plan, septic plan and resource delineation available when contacting Conservation.
2026 Conservation filing |
Town fee |
When it may be used |
|---|---|---|
Request for Determination of Applicability |
$75 |
Requesting a formal determination of whether or how wetland rules apply |
Notice of Intent |
$150 Town fee |
Regulated work requiring a full wetland filing; state fees may also apply |
Certificate of Compliance — first request |
$75 |
Closing an Order of Conditions after approved work is complete |
Extension request |
$50 |
Requesting additional time before the wetland approval expires |
After-the-fact filing |
Three times the filing fee |
Work began before obtaining required Conservation approval |
Clear Septic Capacity Before Adding Bedrooms or Increasing Sewage Flow
Projects that should be screened
- Added bedroom
- Finished attic or basement
- ADU or second living area
- Expanded restaurant or business use
- New plumbing fixtures
- Relocated building near septic components
Have ready
- Existing septic plan
- Approved bedroom count
- Current floor plan
- Proposed floor plan
- Title 5 inspection information
- Proposed sewage-flow change
Driveways and Utility Work May Need Engineering Approval
New or widened driveway
Ask Engineering whether a Road Opening Permit, drainage review or sight-distance information is required.
Utility trench
Work in or affecting the public way may need separate authorization before excavation.
Stormwater
The 2026 Building Inspection fee schedule lists a $315 stormwater permit fee.
Request Before 9:00 AM for Same-Day Inspection Scheduling
Use the OpenGov customer portal
All inspections for current permits must be requested through OpenGov.
Submit no later than 9:00 AM
The Town’s scheduling policy says requests received by 9:00 AM can be scheduled for the same business day. Requests after 9:00 AM move to the next business day.
Do not expect an exact arrival time
The Town cannot guarantee a precise time because emergencies, meetings and difficult field inspections can change the route.
Prepare the correct person and access
A responsible adult age 18 or older must be present for interior inspections. Exterior inspections normally do not require someone on site unless the inspector gives different instructions.
Do not leave keys for the inspector
Town inspectors do not accept responsibility for keys or locking and unlocking doors.
Keep plans and paperwork at the site
Inspectors do not transport permits, engineering, fees or other regulatory documents to or from the project.
Read and resolve the result
Correct every listed item. Do not request reinspection until the complete inspection area is ready and accessible.
Do Not Skip These Dennis Building Inspection Stages
Inspection stage |
Work must be ready |
Local document or prerequisite |
|---|---|---|
Foundation |
Before floor pour, before backfill, before first deck and after dampproofing as applicable |
Certified plot plan uploaded for new construction |
Frame |
Building tight to weather and framing exposed |
Rough electrical and plumbing/gas inspections passed |
Insulation |
Building envelope insulated and visible |
Frame approval completed |
Chimney |
Smoke chamber completed and visible |
Related masonry and fire-safety work ready |
Final |
Rough grade, exterior steps and all project work complete |
Final electrical, plumbing/gas, burner inspections and required as-built completed |
What the Permit Status Means and What to Do Next
Use the Correct Record Path for OpenGov and EnerGov Permits
OpenGov permits
- Sign into the Dennis OpenGov portal.
- Open the application or permit.
- Review documents, payments and inspections.
- Check the building and each trade permit.
- Confirm final status rather than only permit issuance.
Older EnerGov permits
- Call the Building Department at 508-760-6157.
- Provide the permit number and property address.
- Ask the Town to add your email to the permit.
- Open the access link sent by email.
- Request the remaining inspections through the linked record.
Old Permit Not Closed? Ask These Questions
Collect first
- Permit number
- Property address
- Map and parcel
- Original project scope
- Available plans
- Inspection history
- Historic or Conservation decision
- Current photographs
Ask the Town
- Which inspection is missing?
- Is the permit expired?
- Can it be renewed?
- Is a reinspection fee due?
- Are revised plans required?
- Are trade permits open?
- Is a final as-built missing?
- What proves final closure?
Dennis Building Permit Fees Effective in 2026
Building fee item |
2026 Town fee |
What it covers |
|---|---|---|
Residential new construction — 100 sq ft or less |
$70 |
Flat residential building fee |
Residential new construction — over 100 sq ft |
$0.70 per sq ft |
Town-calculated gross project square footage |
Residential foundation only |
$250 |
Foundation permit before the full structure permit |
Residential alteration/repair — 100 sq ft or less |
$70 |
Work not otherwise placed in a more specific category |
Residential alteration/repair — over 100 sq ft |
$0.70 per sq ft |
Alteration, renovation or repair square footage |
Above-ground pool |
$75 |
Building permit; electrical or other fees can be separate |
In-ground pool |
$150 |
Building permit; trades and site reviews can be separate |
Residential roofing or siding |
$60 |
Single listed exterior-work category |
Windows and exterior doors |
$60 |
Residential window and exterior-door permit |
Roofing and siding combination |
$100 |
Combined residential exterior work |
Roofing, siding and windows/doors combination |
$150 |
All three residential exterior categories |
Residential principal-building demolition |
$250 |
Historic, Health and utility approvals may be separate |
Commercial new construction — over 100 sq ft |
$0.90 per sq ft |
All commercial use groups |
Commercial alteration — over 100 sq ft |
$0.90 per sq ft |
Commercial alteration, renovation or repair |
Roof-mounted residential alternative energy |
$150 |
Building fee; electrical permit is separate |
Zoning application/determination |
$50 |
Formal zoning application or determination |
Stormwater permit |
$315 |
Stormwater permit review |
Building reinspection |
$46 |
Work not ready, incomplete or inaccessible |
Electrical reinspection |
$78 |
Incorrect, incomplete, inaccessible or unready electrical work |
First permit renewal |
$46 |
Renewal for cause, subject to Town approval |
Second permit renewal |
$86 |
Second renewal for cause |
Removal of Stop Work Order |
$63 |
Separate from permit and correction costs |
Work started before permit issuance |
Two times permit cost |
Except emergency work allowed by code |
Example: 600 sq ft residential addition
600 sq ft × $0.70 = $420 estimated base building fee.
This does not include zoning, electrical, plumbing, gas, sheet metal, stormwater, Health, Historic, Conservation or other applicable charges.
Example: 300 sq ft residential alteration
300 sq ft × $0.70 = $210 estimated base building fee.
The Building Commissioner determines the correct category and square-foot calculation.
Use the Massachusetts Tenth Edition Building Code
Tenth Edition
The Town states that the Massachusetts Tenth Edition, 780 CMR, became effective October 11, 2024.
Applications after January 1, 2025
The Building Department says permit applications based on the Ninth Edition are not accepted after December 31, 2024.
Fix Common Dennis Permit and Inspection Problems
Problem |
Likely reason |
Best next action |
|---|---|---|
Cannot find an old permit in OpenGov |
Permit was issued through EnerGov |
Call 508-760-6157 and ask the Town to connect your email to the old permit. |
Application remains incomplete |
Required form, owner authorization, workers’ compensation or plan is missing |
Compare the portal checklist with the Town’s Permit Forms page. |
Uploaded correction has not been reviewed |
Staff was not notified of the revised file |
Use the Town contact form and select the appropriate building, plumbing/gas or electrical staff member. |
Building permit is blocked by zoning |
Use, setback, nonconforming condition or special permit is unresolved |
Request a zoning determination and ask whether ZBA or Planning approval is required. |
Exterior work is delayed |
Property is in Old King’s Highway or South Dennis Historic District |
Secure the required historic decision before expecting building-permit issuance. |
Addition is blocked by Health |
Bedroom count or sewage flow exceeds approved septic capacity |
Provide the septic plan, legal bedroom count and proposed floor plan to Health. |
Foundation inspection cannot be completed |
Certified plot plan was not uploaded |
Upload the sealed and signed certified plot plan to the building permit. |
Same-day inspection was not scheduled |
Request was submitted after 9:00 AM |
Schedule by 9:00 AM or select the next business day. |
Inspector could not enter the building |
No responsible adult or agent was present |
Arrange an adult age 18 or older for the next interior inspection. |
Final building inspection is blocked |
Trade finals, rough grading, exterior stairs or final as-built remain incomplete |
Complete every prerequisite and upload the final as-built for new construction. |
Permit is close to 180 days without starting |
Work has not commenced within the permit period |
Contact the Building Department before expiration to discuss an extension or renewal. |
What to Say When You Contact the Town
“I am planning [complete project] at [address/map-parcel]. Can you confirm the required building, zoning, Historic, Conservation, Health, stormwater and trade approvals before I apply?”
“Application [number] received corrections. I uploaded a revised coordinated plan set on [date]. Please confirm that the appropriate reviewer has been notified.”
“I need access to permit [number] at [address]. Please add [email] to the old EnerGov record so I can request the remaining inspections.”
“Permit [number] is not showing final completion. Which inspection, trade approval, certified plan, as-built, fee or certificate is still required?”
Do Not Consider the Dennis Project Complete Until These Items Are Done
- Parcel and zoning district confirmed
- Legal use and bedroom count confirmed
- Historic review completed where required
- Conservation review completed where required
- Health/septic approval completed
- Engineering and road permits completed
- Correct building and trade permits issued
- Certified plot plan uploaded where required
- Approved plans available on site
- Inspection requests submitted on time
- Work remained visible and accessible
- Corrections and revisions approved
- Electrical and plumbing/gas finals passed
- Gas or oil-burner final passed
- Rough grading and exterior stairs completed
- Final as-built uploaded for new construction
- Certificate of Occupancy or Completion issued
- Permit record shows final status
Dennis Building Department Map
Open the Correct Dennis Permit Resource
Dennis Building Permit FAQs
Where do I apply for a Dennis building permit?
Use the Town of Dennis OpenGov portal. Dennis switched to OpenGov on January 13, 2025. Choose the correct permit type, complete the property and project information, upload the required documents and monitor the customer portal.
How do I access a permit issued through the old EnerGov system?
Call the Building Department at 508-760-6157. Provide the permit number, address and your email. The Town can add your email to the old permit and send a link that lets you request the remaining inspections.
What is the Dennis same-day inspection cutoff?
Inspection requests must be submitted online no later than 9:00 AM for same-business-day scheduling. Requests received after 9:00 AM are scheduled for the next business day.
Does someone need to be present for a Dennis inspection?
A responsible adult age 18 or older must be present for an interior inspection. The Building Department says exterior inspections do not normally require someone to be present, unless the inspector gives different instructions.
When are Dennis solar electrical inspections performed?
The Town schedules solar electrical inspections only from noon to 4:00 PM on Tuesdays and Thursdays.
Does exterior work need historic approval?
It may. Old King’s Highway Historic District reviews exterior changes, fences, signs, new construction and demolition. South Dennis Historic District also regulates exterior work within its boundaries. Check the Town map and obtain the required historic decision before building-permit issuance.
When should I contact the Dennis Conservation Commission?
Contact Conservation before building, landscaping or altering a site near wetlands, a brook, coastal resources or drainage areas. The Town’s fee book specifically identifies work within 100 feet of a wetland or 200 feet of a brook for Conservation screening.
How much is a Dennis residential building permit in 2026?
The 2026 fee book lists $70 for qualifying residential new construction or alterations of 100 square feet or less. Work over 100 square feet is generally listed at $0.70 per square foot. Project-specific, trade, Historic, Health, stormwater and Conservation fees may be separate.
What happens if work starts before the permit is issued?
The Town’s 2026 fee book states that a permit for construction started before issuance is charged at two times the permit cost, except emergency work allowed by code. A Stop Work Order and correction costs may also apply.
What is required before final approval of a new Dennis building?
Complete the required building and trade inspections, rough grading and exterior steps. Final electrical, plumbing/gas and burner inspections must pass, and a final as-built plan must be uploaded before the Certificate of Occupancy is issued.
Source and Accuracy Note
Building-Department.org is an independent informational guide and is not the Town of Dennis.
This page was rebuilt using the Town Building Department, OpenGov notice, inspection policy, inspection schedule, permit forms, zoning bylaw, GIS, Historic District pages, Conservation resources and final 2026 Town Fee Book.
Last reviewed: July 22, 2026.
Forms, fees, adopted codes, staff, portal screens and inspection procedures can change. Confirm time-sensitive details with the Town before submitting, paying, ordering materials or beginning work.
Khushboo Bobade is a public records researcher and editorial writer specializing in government service documentation and construction permit systems.
Her research focuses on explaining building permits, inspection procedures, zoning regulations, and public permit records maintained by local government building departments across the United States.
Professional profile: View LinkedIn Profile
Check Permit Type, Estimate Fees, Prepare Inspections and Find Official Building Department Links
Use this free tool before applying for a building permit, booking an inspection, checking zoning rules, or searching permit records. It helps homeowners, contractors, landlords, buyers, and business owners understand the next step before visiting the official building department portal.
What building department task do you need help with?
Choose your goal. The tool will suggest the right next step, what to prepare, and which official page to check.
Before starting work, check whether your project needs building, zoning, electrical, plumbing, mechanical, right-of-way, or HOA approval.
Many portals require contractor registration, license details, insurance, plans, owner authorization, and inspection scheduling access.
Building Permit Type Finder
Select the project type to understand which permits or reviews are commonly required. Always confirm with the official local building department.
Permit Fee Estimate Calculator
Estimate a rough permit fee using project value and common percentage-based review assumptions. Local minimum fees, technology fees, impact fees, reinspection fees, and trade fees can change the final amount.
Inspection Readiness Checklist
Use this before scheduling framing, electrical, plumbing, mechanical, roofing, final, or certificate-related inspections.
Zoning and Setback Pre-check
Use this before applying for a permit when your project may affect land use, setbacks, lot coverage, height, parking, signs, fences, accessory structures, or business use.
Plan Review Timeline Estimator
Estimate how complex your review may be. Local staffing, incomplete plans, corrections, holidays, fire review, zoning review, and outside agency review can change timing.
Permit Records Search Helper
Use this if you are trying to find old permits, inspection history, certificate of occupancy details, open permits, or code-related records.
Official Building Department Resource Finder
Enter city/county and state to create safe searches for official permit portals, inspection scheduling, building codes, zoning maps, forms, fees, and contact pages.
Building Department vs Planning/Zoning
- Building Department: permits, plan review, inspections, code compliance, certificates.
- Planning/Zoning: land use, setbacks, height, lot coverage, signs, parking, variances.
Best sitewide placement
Place this tool after the first main guide section or before FAQs. It turns a normal article into a practical permit-preparation page.
Important note
This tool gives educational guidance only. Final permit requirements, fees, inspections, forms, and deadlines must be confirmed with the official local building department.