Building/Zoning/Engineering
Engineering Department
The Borough Engineer is required to be a licensed professional engineer in the state of New Jersey. Appointed by the Mayor and Council, the engineer provides technical services to many other Borough Departments and to municipal boards such as the Planning Board. State law requires that municipal infrastructure improvements such as roads, sewers, culverts, etc., be designed by a licensed professional engineer. Some of the duties of the Borough Engineer include review and inspection of drywells and storm water systems, review of retaining wall designs, review of Planning Board and Zoning Board of Adjustment site plans, municipal infrastructure improvements, and review all zoning calculations sheets for compliance with state and local resolutions. Any additions to homes or other buildings must first be reviewed and approved by the Borough Engineer for Zoning Compliance prior to obtaining a construction permit. Meetings with the Borough Engineer can be arranged by calling Public Works.
Construction Department
Construction Portal
The Construction Department now offers an online citizen portal. You will be able to:
- Check the status of permits on properties
- Follow inspection results as they are entered by clicking the "watch" button on property info window
- Make Inspection appointments online
- Requests for online payments must be made through the construction office by calling 908.232.2919. A link will then be sent via email.
All appointments for Inspections can be made through the SDL Portal
Click on the SDL Portal Link above. Choose from 3 different dates and the first available date will be given to you. Please keep in mind that your first choice may not be available. First time users will need to create a username and password.
Once you have created an account, you will be able to Navigate the site by searching Address, Block, Lot and Permit Number. While looking up property information, we have found the best way is by entering the least amount of information as possible. For example if looking up 1385 Route 22 West – Try simply entering 1385 Rou.
INSPECTION HOURS
Building: Tuesday, Wednesday and Thursday -- 7:00 to 10am
Plumbing and
Mechanical: Tuesday and Thursday -- 3:00 to 6:00 pm
Fire: Tuesday -- 3:00 to 6:00pm and Thursday -- 1:30 to 4:30 pm
Electrical: Tuesday and Thursday -- 3:00 to 6:00 pm
SMOKE DETECTOR RE-SALE/RE-LEASING CERTIFICATION (RESIDENTIAL ONLY)
Smoke Detector/Carbon Monoxide and Portable Fire Extinguisher inspection requests can be made online through the SDL Portal. Click the link www.sdlportal.com or copy and paste to your web browser. Once you have paid the $100.00 fee, completed and submitted the form you will be notified with an inspection date. Inspections take place: Tuesday, 3 to 6pm and Thursday, 1:30 to 4:30pm
Smoke detector inspection requirements (NJAC 5:70-4.19) :
- Smoke detector on each level of the premises and outside of each separate sleeping area
- Ten-year sealed battery-powered single station smoke alarms shall be installed and shall be listed in accordance with ANSI/UL 217. A/C powered single or multiple-station smoke alarms installed as part of the original construction or rehabilitation shall not be replaced with battery-powered smoke alarms.
- Carbon monoxide alarms may be battery-operated, hard-wired or of the plug-in type. Single station carbon monoxide alarms shall be installed and maintained in the immediate vicinity of the sleeping area(s).
- A portable fire extinguisher shall be within 10 feet of the kitchen and shall be an approved listed and labeled type with a minimum rating of 2A-10B:C and no more than 10 pounds.
** Please note: this is the only document the Borough of Mountainside requires for sale of a home - we do not perform CO Inspections
Contact Us
Engineering/Zoning Department
908-232-2409
908-232-2409
Construction Department
Portable Container Application
UCC F130 Plumbing Subcode Sheet
UCC F370 Chimney Verification Sheet
Septic System Application Construct, Repair Or Abandon
Standby Generator Information Sheet
Road Opening Permit Application
CCO Application Residential Sales
Mountainside Vacant Property Registration Form
Paving Schedule
PAVING SCHEDULE
Ordinance 1091-2005 restricts road opening permits on streets within 5 years of repaving
2026 PROJECTED PAVEMENT SCHEDULE:
· Chapel Hill Road
Outlook Drive West
· Woodvalley Road (Briar Patch to New Providence Road)
· Garrett Road
· Indian Trail
· Ravenswood Street
· Central Ave (Foothill to Blazo Terr)
· Charles Street
· Virginia Ave
Hawk Ridge
Previously Paved Roads:
- Timberline Court 9/2025
- Timberline Road 9/2025
- Laurel Court 9/2025
- Friar Lane 11/26/2025
- Justin Place 11/25/2025
- King Court 11/26/2025
- Queens Lane 11/2025
- Short Drive (Central Ave - Ridge Dr) 11/13/2024
- Bayberry Lane - 11/18/2024
- Rolling Rock Road - 6/21/2024
- Constitution Plaza - 6/20/2024
- Birch Hill (New Prov - Bridal) 6/20/2024
- Edgewood Court - 11/17/2023
- Ridge Drive - 11/16/2023
- Outlook Drive East - 9/12/2023
- Gold Star Way 8/23/2023
- Old Tote Road (Birch Hill - Wood Valley) 8/28/2023
- Mill Lane - 8/30/2023
- Rutgers Road - 8/30/2023
- Locust Avenue - 10/2022
- Walnut Avenue - 10/2022
- Fox Trail - 9/20/2022
- Fernwood Road - 9/14/2022
- High Point Drive - 5/26/2022
- Pheasant Hill - 5/26/2022
- Larkspur Road - 5/27/2022
- Old Tote Road (Poplar to Wood Valley) - 11/4/2021
- Mountainview Road (Gas Co.) - 12/2021
- Greenwood Road (Gas Co.) - 12/2021
- Sunrise Parkway - 9/14/2021
- Long Meadow - 6/29/2021
- Beechwood Court - 6/29/2021
- Garrett Road - 8/20/2021
- Hickory Lane - 8/20/2021
- Dunn Parkway – 7/29/2020
- Creek Bed Road – 11/24/2020
- Globe Avenue (Section) – 11/2020
- Briar Patch South – 12/2020
- Indian Trail – 12/2020
- Birch Hill Road (Old Tote – To Bridle Path) 12/2020
- Birch Lane – 11/2020
- Oak Tree Road – 11/2020
- Oak Tree Court – 11/2020
- Evergreen Court – 11/2020
- Knollwood Road – 12/2020
- Miarmi Court – 10/7/2020
- Mohawk Drive j- 12/2020
- Wood Valley Road (Stony Brook – Old Tote) 12/2020
- Timberline Road – 12/2020
- Partridge Run – 9/10/2019
- Woodland Ave – 7/2019
- Rodman Lane – 7/2019
- Endor Lane – 7/12/2019
- Tanglewood Lane – 10/4/2019
- New Providence Rd. (Outlook to Summit Lane) – 7/19/19
- Little Court – 7/2019
- Barton Drive – 11/11/2019
- Parkway – 10/2019
- Pembrook – 8/2019
- Meeting House Lane – 10/2018
- Chipmunk Hill – 11/2018
- Wyoming Drive (Upland to Cherry Hill) – 8/2017
- Wyoming Drive (Longview – Short) 8/2017
- Cherry Hill Road – 9/2017
- Maple Court – 8/2017
- Peachtree Lane – 8/2017
- Iris Drive – 11/2017
- Sawmill Road – 11/2017
- Longview Drive – 10/2017
- Wood Valley Rd. – 7/2017
- Upland Road – 11/2017
- Forest Hill Way – 10/2017
- Dogwood Way – 10/2017
- Briar Patch – 8/2016
- Grouse Lane – 10/2016
- Saddlebrook Road – 4/2016
Zoning Requirements
MUNICIPAL ZONING PERMIT REQUIRED FOR SHEDS, RETAINING WALLS, FENCES & DRIVEWAY, WALKWAY, OR PATIO EXPANSIONS
In general:
- Sheds or similar structures 200 square feet or less in area and 10 feet or less in height require a zoning permit.
- Sheds in excess of the stated dimensions require a State of NJ construction permit.
- Retaining walls four feet or less in height require a zoning permit.
- Retaining walls in excess of 4 feet in height require a State of NJ construction permit.
- Fences six feet or less in height, and not involving a swimming pool, require a zoning permit. Fences protecting a swimming pool or similar item require a State of NJ construction permit. Fences more than six feet in height are generally prohibited.
- Any Expansion (minor or otherwise) to an existing driveway, walkway, or patio, regardless of material used, requires a zoning permit.
Please consult with staff for additional particulars regarding all of the above items. A separate Zoning Permit application is needed for each applicable item contemplated. Each application must be accompanied by a $50 fee (non-refundable) and must include a current property survey. Zoning Permit applications and Construction Permit applications may be obtained from the Construction/Zoning/Engineering Department located on the second floor of Borough Hall. Once submission is complete, review and approval / denial of a Zoning Permit application typically takes approximately 7-14 days.
Residential Uses:
Accessory structures such as sheds, pools, and gazebos require certain setbacks from property lines and may also require a building permit. Call the Zoning Department for information. The Borough of Mountainside's property maintenance ordinance requires: 1) The exterior of dwellings be maintained and painted; 2) Premises be kept free from debris, overgrown grass and weeds, the storage of old parked vehicles, and parts and abandoned appliances. The parking of recreational vehicles and commercial vehicles is prohibited unless in an enclosed garage or shielded from view.
Commercial Uses:
A Certificate of Occupancy is required prior to the occupancy and commencement of new businesses, office tenants, warehouses and industrial uses. The fee is $241. Inspections from Fire, Building, Plumbing and Fire Subcodes are required to occupy the premise. Applications are available in the Building/ Zoning Department.
Zoning Requirements:
| Residential 1 Zoning/R 1 Zoning Calculation Sheet | |
| Minimum Lot Area | 20,000 Square Feet |
| Minimum Lot Width | 110 ft. |
| Front Yard Setback | 30 Ft. |
| Rear Yard Setback | 30 Ft. |
| Side Yard Setback | 10% of lot width or 10 ft. min |
| Maximum Ground Projections | 3.75% of lot |
| Residential 2 Zoning / R-2 Calculation Sheet |
|
| Minimum Lot Area | 15,000 Square Feet |
| Minimum Lot Width | 100 Ft. |
| Front Yard Setback | 30 Ft. |
| Rear Yard Setback | 30 Ft. |
| Side Yard Setback | 10% of lot width or 10 ft. min |
| Maximum Building Height | 35 Ft. |
| Maximum Floor Area Ratio | .225 |
| Maximum Building Footprint (foundation area) | 15% of lot area |
| Max. Ground Projections (porches, decks & roof overhangs) | 3.75% of lot |
| Max. Lot Coverage (above & driveways, walkway, patios, other impermeable surfaces) |
30% of lot |
| Business | |
| Minimum Lot Area | 3,000 Square Feet |
| Minimum Lot Width | 30 Ft. |
| Front Yard Setback | 5 Ft. |
| Rear Yard Setback | 30 Ft. |
| Side Yard Setback | 10 Ft. on each side |
| Maximum Ground Projections | None |
| Limited Industrial | |
| Minimum Lot Area | 26,000 Square Feet |
| Minimum Lot Width | 125 Ft. or 200 Ft. along Route 22 |
| Front Yard Setback | 30 Ft./ 50 Ft. on Route 22 |
| Rear Yard Setback | 30 Ft. |
| Side Yard Setback | 15 Ft. |
| Maximum Building Projections | 35% of lot area |
| Maximum Lot Coverage | 75% of lot area |
| Office Building | |
| Minimum Lot Area | 30,000 Square Feet |
| Minimum Lot Width | 150 Ft. or 200 Ft. along Route 22 |
| Front Yard Setback | 50 Ft. |
| Rear Yard Setback | 50 Ft. |
| Side Yard Setback | 25 Ft. or 50 ft. near residence |
| Maximum Building Projections | 35% of lot area |
Construction Department
This department administers all construction within the Borough. It issues building permits for residential, commercial, and industrial construction within the municipality. After plans have been reviewed and accepted, and the appropriate permits have been issued, inspections are performed to insure that all construction is in accordance with the Uniform Construction Code of New Jersey and its adopted codes. It is also the responsibility of this department to issue violations and fines when warranted and Certificates of Approvals and Occupancy upon final inspections and approval of all projects. All these activities are recorded, tabulated and reported to the State on a monthly basis.
What is a permit?
When is a permit required?
A permit is generally required if an individual wishes to construct, enlarge, alter or demolish a structure. Included in this category are those projects which change any existing structure or add to that structure, such as the following:
- Sheds
- Deck or pool
- Addition to a house
- Garage or fence (over 4 feet in height or any fence around a pool)
A construction permit is also required to do the following:
- Any change in lot coverage
- Replace siding or roofing
- Additions/changes to plumbing system
- Install a new water heater, furnace or fireplace
- Install additional electrical receptacles, outlets, or lighting
- Lawn sprinklers, alarm systems
- Repair or replace any structural member, such as increasing the size of a window
The following projects are examples of ordinary repairs which DO NOT require a permit:
- Replacing gutters
- Installing, repairing or replacing any interior trim in a one or two-family dwelling.
- Repaving existing driveway if no change in size or lot coverage
How do I apply for a permit?
The required documentation for a construction permit includes:
- Permit Application
- Construction Plans
- Plot Plan
- Engineering Department Release and all other required prior approvals
- (Grading Plan, if required)
An application for permit is available from the Construction Department, located in the Borough Hall or can be found under "Forms and Sheet Information" under the Construction webpage. Along with the completed application, the applicant must submit 3 copies of the construction plans. These drawings may be done by the applicant for his own single-family dwelling or by a New Jersey licensed architect or engineer. A building contractor is not permitted to do the drawings unless he is licensed as an architect or engineer.
All contractors are required to be licensed by the New Jersey Department of Consumer Affairs and must provide proof of registration to the Construction Department in order to file and receive a construction permit.
An applicant must also submit a current plot plan for an addition, fence (over 4 feet in height) or pool. The plot plan should indicate:
- All existing and proposed structures on the property
- The distances to the lot lines, septic system or sewer lines, if known
- The location of any easements
The Permit Process
- The borough Zoning Officer completes the zoning review.
- The required documents are submitted to the Construction Department, Grading Plan (if required) is to be submitted directly to the Engineering Department by the applicant.
- After the Zoning and Engineering approval, the documents are reviewed by the building, electrical, plumbing, and fire subcode officials for completeness and code conformance. This process may take up to twenty working days. If the documents do not comply with the Uniform Construction Code, the applicant will be notified of the violations and required to correct and resubmit the documents for further review. Applicant must contact Engineering Department directly for any comments to the Grading Plan (if required).
- The permit is issued indicating that legal approval has been given to begin the construction project.
State law mandates that the Construction Official issue a fine of up to $2,000 to any person who performs work without a permit.
Inspections during construction
Building Subcode Inspection
Note: No building inspection will be made prior to any required plumbing or electrical inspection approval.
- Bottom of footings prior to placement of concrete
- Reinforcement prior to placement of concrete
- Foundations and all walls prior to backfilling
- Floor slab(s) prior to placement of concrete
- Rough inspection which includes all structural walls, floors and roofs prior to covering with finish or infill materials. This inspection shall be called for after rough plumbing and electrical approvals have been obtained
- Insulation inspection prior to installation of finish materials
- Final inspection which includes equipment, final connections and all finish materials
- Rated assemblies
Electric Subcode Inspections
- Rough electric under concrete slab prior to backfill and placement of concrete
- Rough electric which includes outlet spacing, type of box and size, wire size and grounding prior to covering with finish or infill materials
- Service which includes panel(s) wire size, groundings and over current protection
- Final inspection which includes devices, fixtures, appliances, GFI requirements after installation of finish materials and utilization equipment
Plumbing Subcode Inspections
- Rough plumbing under concrete slab prior to backfill and placement of concrete
- Rough plumbing which includes sanitary piping, water piping, storm drains and radon piping
- Water service from building to property line or curb line
- Sewer service from building to property line or curb line or to septic tank
- Final plumbing which includes piping, trim, fixtures, cross connections, back flow preventors and radon
- Rough gas piping, requires air test
- Final gas piping to all appliances requiring gas
- Final on hydronic heating systems and hot water heaters
- Final air conditioning on all units manufactured for domestic and commercial cooling
Fire Subcode Inspections
- Final inspection which includes a performance test to demonstrate its efficiency of operation and alarms
For renovations and projects other than new construction, contact the Construction Department for inspection requirements.
Obligations during construction
Inspectors must have 24 hours advance notice and must be able to see the part of construction required to be inspected. Any work which does not conform to the approved plans will require re-inspection. If the work continues without resolving the problem the applicant will be fined and the job stopped. Applicants are required to post the permit prominently on the site and to keep a copy of the approved plans at the site. When the project is completed, the applicant must call for final building, electrical, plumbing, and fire inspections. The applicant must also apply for a certificate of occupancy. If the work is approved, a certificate will be issued indicating permission to use the area for the intended purpose. Property must be properly identified: House number conspicuously displayed for viewing from the street and construction placard conspicuously displayed on the building.