Middlesex Borough
Certificate of Occupancy
Required- Certificate
- Residential Sale / Re-Rent Certificate (Residential Resale Certificate)
- Issued by
- Department of Code Enforcement, Zoning and Construction
- Requirements
- Smoke alarm on each floor, including the basement, within 10 feet of all sleeping areas (the Borough sheet says alarms must be within 7 years of the manufacture date)
- CO alarm within 10 feet of all sleeping areas, outside the rooms
- Fire extinguisher mounted within 10 feet of the kitchen, ABC type, 2.5 to 10 pounds
- Running water, working electric service and at least one flushable toilet
- Handrails and guards on steps of 3 or more risers or 30 inches
- Well water and/or septic report from the Board of Health, if applicable
- Water heater grounded (jump bonded); relief discharge tube not reduced and ending within 6 inches of the floor
- Solid aluminum dryer vent pipe, not flex pipe
- Anti-tilt device on the stove
- House numbers visible from the street
- Exit doors open from inside without a key or special knowledge
- No mold or water damage
- Any outstanding Borough fines or liens paid in full
- New owner's Resident Info (Police Department emergency file) form must be turned in before inspections are scheduled; the property will be photographed
- Change of title only (vacant, not yet habitable home): floor plan layout of all floors
- Fees
Residential Sale / Re-Rent inspection, per unit $125.00 - Phone
- 732-356-7400 ext. 260
Smoke and CO alarm certificate
Required- Requirements
- County letter: smoke alarms on every level (basement, first and second floors, not crawl spaces or unfinished attics) and within 10 feet of sleeping rooms; no older than 10 years or the maker's expiration date
- County letter: CO alarm outside each separate sleeping area; no older than 5 years or the maker's expiration date (other County pages say 7 years for stand-alone CO alarms)
- County letter: house numbers at least 4 inches high, visible from the street and in a contrasting color (2 inches if on both sides of a curbside mailbox)
- County letter: smoke/CO alarms, house numbers and fire extinguisher must all comply; certificate is issued at the inspection and valid for 6 months
- Smoke alarms within 10 feet of every bedroom and at least one on every floor, including finished and unfinished basements (not needed in an unfinished attic)
- Smoke alarms may not be more than 10 years old; stand-alone CO alarms not more than 7 years old; combination alarms not more than 10 years old
- A hard-wired smoke alarm must be replaced with a hard-wired alarm
- A replacement battery smoke alarm must have a sealed 10-year lithium battery
- Fire extinguisher (listed on the County form in the Borough's 2026 packet): 2-A:10-B:C, about 5 pounds, wall-mounted on the way out of the kitchen, no higher than 5 feet, with a receipt or NJ licensed contractor tag from the past 12 months
- Homes built 1984 or later need interconnected electric alarms; homes built 1990 or later also need battery backup and an alarm in each bedroom
Last checked September 30, 2026
Other towns in Middlesex County
- Carteret Borough
- Dunellen Borough
- East Brunswick Township
- Edison Township
- Helmetta Borough
- Highland Park Borough
- New Brunswick City
- North Brunswick Township
- Perth Amboy City
- Piscataway Township
- Plainsboro Township
- Sayreville Borough
- South Amboy City
- South Brunswick Township
- South Plainfield Borough
- South River Borough
- Woodbridge Township