Plainsboro Township

Middlesex County

Certificate of Occupancy

Required

Certificate

Housing Certificate of Occupancy (Resale Inspection)

Issued by

Housing Division, Department of Code Enforcement

Requirements

Smoke alarms tested; interconnected alarms must all sound together; smoke alarms replaced every 10 years (NFPA 72)
Smoke alarms at least 3 feet from air vents or bathrooms with a tub or shower
CO alarms near all sleeping areas in homes with fuel-burning appliances, fireplaces or attached garages
Permanent 'CAUTION: MULTIPLE SOURCES OF POWER' label within 18 inches of the main panel and meter if the home has a generator, solar panels, battery storage or other secondary power
GFCI outlets tested (bathrooms, kitchens, garages, basements, outside); defective ones replaced
Fireplace or wood stove over 3 years old needs a Level 2 (NFPA 211) safety certification before the certificate is issued
Oil or gas furnace must be inspected and certified safe by a heating professional before the certificate is issued
Bath exhaust fans working and free of lint; kitchen range hood filter clean and working
Electric power on for the inspection; an adult (18+) must be present (no lock box access)
All Building Division permits must be inspected and closed

Fees

Resale inspection, single family or townhouse	$175.00
Resale inspection, condominium	$100.00
Reinspection, sold dwellings, second and later inspections	$100
Composing a buyer's acceptance agreement and performing a reinspection	$150

Timing

Apply early: the Township FAQ says the current wait for an inspection is about 1 month because of seasonal volume

Valid for

90 days

Phone

609-799-0909 ext. 1220

Required

Requirements

The Housing resale inspection tests smoke alarms (interconnected alarms must all sound together; replace every 10 years) and checks CO alarms near sleeping areas
Homes with a generator, solar panels, battery storage or other secondary power need a permanent 'CAUTION: MULTIPLE SOURCES OF POWER' label within 18 inches of the main panel and meter

Last checked September 30, 2026

Sources