Plainsboro, NJ Addition Permit: what you need, forms and fees
- Do you need a permit? Yes.
- Permits in order: Zoning, then Construction.
- Fee: Fee varies; call the Building Division at 609-799-0909 ext. 1201. UCC fee ordinance (Construction); No zoning fee stated on the form. (Zoning).
- Office phone: 609-799-0909 ext. 2545.
Free: official forms and an online fill preview. $29 one time per project for clean filled forms plus your full package. Plainsboro forms page (opens official site in new tab)
Step by step
- Check zoning rules for your lot before you draw plans.
- Gather what to bring: 8 items listed below.
- Apply in order: Zoning, then Construction.
- Submit: Assemble state permit application with technical subcode sections and 2 sets of plans; include Zoning Compliance Form (with site plan/survey and elevations) when zoning review applies. Submission channel not stated on the page; email buildingdivision@plainsboronj.com to ask whether a permit is needed. Online payments: plainsboronj.com/457/Pay.
- Pay the fee: Fee varies; call the Building Division at 609-799-0909 ext. 1201. UCC fee ordinance for Construction.
- Wait for approval. Do not start work until the permit is issued.
- Schedule inspections: Call the Building Division (609-799-0909) at least 24 hours ahead, or use the SDL Portal (24/7). Scheduling is contingent on that day's demand. Required inspections are explained at permit issuance.
- Pass the final inspection and ask whether you need a certificate (F270) to close the permit.
What to bring
- Construction permit application 'manila jacket' (NJ DCA state forms)
- Subcode technical sections as applicable: Building, Fire, Plumbing, Electrical, Elevator
- 2 copies of plans (signed and sealed by NJ licensed architect; resident homeowner may prepare plans for own single-family residence)
- Zoning Compliance Form if work affects setbacks or the building exterior
- Completed Zoning Compliance Form signed by applicant and owner (or authorized agent)
- Site plan or survey drawn to scale not less than 50 feet to the inch, showing existing/proposed buildings, grading, landscaping, dimensions and setbacks
- Elevation drawings with all dimensions and description of exterior materials
- NJ UCC Construction Permit Application (F100): one original plus three copies, per DCA
State forms used: F100.
Office
- Name
- Plainsboro Township Building Division (Code Enforcement)
- Address
- 641 Plainsboro Road, Plainsboro, NJ 08536
- Phone
- 609-799-0909 ext. 2545
- buildingdivision@plainsboronj.com
- Hours
- Mon-Fri 8:30 a.m.-4:30 p
Last checked October 24, 2026. Official source (opens official site in new tab)
Researched from official Plainsboro sources Last checked October 24, 2026. Not yet reviewed line by line by PermitsWise staff.
FAQ
Do I need a permit for a addition in Plainsboro?
Yes. The Building Division FAQ lists room addition as an example of work requiring a permit.
How much is the addition permit fee in Plainsboro?
Construction: Fee varies; call the Building Division at 609-799-0909 ext. 1201. UCC fee ordinance (eff. 12/8/2025) is a scanned PDF - amounts not extracted.. Zoning: No zoning fee stated on the form..
How do I submit my addition application in Plainsboro?
Assemble state permit application with technical subcode sections and 2 sets of plans; include Zoning Compliance Form (with site plan/survey and elevations) when zoning review applies. Submission channel not stated on the page; email buildingdivision@plainsboronj.com to ask whether a permit is needed. Online payments: plainsboronj.com/457/Pay.
What should I bring for a Plainsboro addition permit?
Construction permit application 'manila jacket' (NJ DCA state forms); Subcode technical sections as applicable: Building, Fire, Plumbing, Electrical, Elevator; 2 copies of plans (signed and sealed by NJ licensed architect; resident homeowner may prepare plans for own single-family residence); Zoning Compliance Form if work affects setbacks or the building exterior.
Who do I contact about a addition permit in Plainsboro?
Plainsboro Township Building Division (Code Enforcement). Address: 641 Plainsboro Road, Plainsboro, NJ 08536. Phone: 609-799-0909 ext. 2545. Email: buildingdivision@plainsboronj.com.
PermitsWise is an independent service, not affiliated with Plainsboro. Confirm details with the office.