Roofing in Ho-Ho-Kus, New Jersey

Not required

Required

The 2024 International Residential Code, New Jersey edition, adopted by the State, with the Rehabilitation Subcode for work on existing buildings. New Jersey has one construction code, the Uniform Construction Code (N.J.A.C. 5:23), which every municipality enforces; municipalities do not adopt building codes of their own (N.J.S.A. 52:27D-123.1 and 52:27D-139). N.J.A.C. 5:23-3.21(a)1 adopts the International Code Council's "2024 International Residential Code known as the IRC/2024 as the one- and two-family dwelling subcode in New Jersey subject to the modifications stated at (c) below," and 3.21(b) applies it to "detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height." The section was rewritten by R.2026 d.086, "effective August 17, 2026," in the Department of Community Affairs' print of the rules "adopted and published through the New Jersey Register, Vol. 58 No. 16," and the Department's Current Construction Codes page lists the "International Residential Code/2024, NJ ed" with an adoption date of Aug 17, 2026. Other buildings fall under the building subcode, the International Building Code/2024, NJ edition (N.J.A.C. 5:23-3.14). Roof work on an existing building is held to the Rehabilitation Subcode: "Existing structures, when repaired, renovated, altered or reconstructed, shall conform to the requirements of N.J.A.C. 5:23-6, Rehabilitation Subcode" (N.J.A.C. 5:23-2.4(a)). A six-month grace period follows the adoption. N.J.A.C. 5:23-1.6(a): "For a period of six months following the operative date of a subcode revision, applicants may submit a complete permit application, including all prior approvals, to be reviewed under the code in force immediately preceding the subcode revision." The rule history gives R.2026 d.086 no date other than its effective date, so on that reading the window runs from August 17, 2026 until about February 17, 2027: a complete application filed inside it may be reviewed under either the prior edition or the 2024 edition, at the applicant's choice, and one filed after it closes is reviewed under the 2024 edition. Everything above is New Jersey state law, the same in every municipality. Locally, the Borough of Ho-Ho-Kus Construction Department page names no code edition of its own.

No permit is needed under state law to reroof a detached one- or two-family house; a townhouse, other attached dwelling or any other building needs a permit. The Borough of Ho-Ho-Kus Construction Department page lists under "Permits are NOT required for the following:" the item "Roofing or siding as long as the materials are the same." The line does not use the word detached and adds a same-materials condition the state rule does not state; this record does not decide which reading governs. Where a roof permit is required, the page says "FOR ALL NJ UCC PERMIT APPLICATION FORMS, PLEASE VISIT THE NJDCA website" and "Do not make any final payments to your contractor until the work has been inspected and final approvals have been granted." The department is at Borough Hall, 333 Warren Avenue, Ho-Ho-Kus, NJ 07423, "Phone: 201-652-4400 Ext. 241," main office hours "Monday - Friday, 8:30 am-4:30 pm (Closed for lunch 12:30 pm-1:30 pm)," and Construction Official office hours "Tuesday and Thursday, 2:30 pm-5:30 pm." The State's directory of construction offices lists the same construction official for the Boroughs of Midland Park and Woodcliff Lake; each keeps its own office.