Mendham rent control: no local ordinance (2026)
Morris County — no local rent control ordinance on file.
Generate a rent increase notice
Even without local rent control, a rent increase in New Jersey generally must follow the statewide termination-and-reoffer notice rules below — at least one month's notice, delivered a specific way, and never mid-lease. Fill in the tenant, unit, and rent details and get a printable, statute-cited notice for Mendham — $9, pay by card.
Generate a rent increase notice — $9
No local rent control ordinance on file
The NJ Department of Community Affairs' 2026 Rent Control Survey lists no ordinance on record for Mendham. See the DCA survey (xlsx) ↗
Ordinances change — confirm current status with Mendham's municipal clerk before relying on this page. Checked against the state survey as of 2026-09-23.
What this means for a rent increase
New Jersey has no statewide cap on rent increases. Without a local rent-control ordinance, Mendham has no percentage cap either — but a rent increase still isn't unlimited:
- Unconscionable-increase standard: for units covered by the Anti-Eviction Act (N.J.S.A. 2A:18-61.1 et seq.), a court can strike down an increase so large it would "shock the conscience of a fair and honest person" (Fromet Properties, Inc. v. Buel, 294 N.J. Super. 601 (App. Div. 1996)), weighing the size of the increase, the landlord's expenses, comparable-area rents, and the parties' relative bargaining position. The landlord bears the burden of proving the increase is not unconscionable.
- Owner-occupied, 2 or fewer rental units: the Anti-Eviction Act's notice-to-quit/unconscionability mechanics don't apply the same way to an owner-occupied building with 2 or fewer rental units — a different, less protective notice-period scheme governs instead (N.J.S.A. 2A:18-61.1's opening clause).
- Notice required: a rent increase must terminate the current tenancy and offer a new one at the higher rent, with at least one full month's notice before the increase takes effect (N.J.S.A. 2A:18-61.1(f), 2A:18-61.2) — delivered by personal delivery, by leaving a copy at the tenant's usual place of abode with a household member age 14 or older, or by certified mail (regular mail to follow if unclaimed). It can't take effect mid-term on a fixed-term lease.
- New construction is separately exempt from any local rent control for 30 years from the certificate of occupancy (N.J.S.A. 2A:42-84.2) — moot here since there's no local ordinance to be exempt from, but relevant if Mendham adopts one later.
- Pending bills, not law: statewide rent-cap and unconscionability-codifying bills (e.g. S452/A751, A5432) remain pending in the Legislature as of September 2026 — none is currently enacted.
Checklist for raising rent in Mendham
- Confirm the unit isn't in an owner-occupied building with 2 or fewer rental units — those fall under a different, less protective notice-period scheme instead of the rules below.
- Set the new rent. There's no percentage cap here, but it must not be "unconscionable" under Fromet Properties, Inc. v. Buel — be ready to justify it against your costs and comparable rents nearby; the burden is on the landlord.
- Write a notice that terminates the current tenancy and offers a new one at the higher rent — a notice that just states a new number doesn't fit the statutory structure.
- Give at least one full month's notice before the increase takes effect (N.J.S.A. 2A:18-61.1(f), 2A:18-61.2), and never mid-term on a fixed-term lease.
- Deliver it by personal delivery, by leaving a copy with a household member age 14 or older, or by certified mail (regular mail to follow if unclaimed).
- If the unit was built before 1978, confirm its lead-safe certificate (method: visual assessment here) is current before or at the next turnover.
Lead-safe certification
Pre-1978 rentals here also need a lead-safe certificate (separate from rent control, valid 3 years, P.L.2024, c.74). Per the state's 2025-26 inspection-methodology list, Mendham's method is: Visual assessment. See the lead-safe hub for the statewide deadlines and checklist.
Visual assessment — an inspector can certify the unit by checking painted surfaces for deterioration, without lab dust sampling. This is allowed here because the state's childhood blood-lead testing data shows under 3% of tested children age 6 or younger with an elevated reading (an owner may still elect dust-wipe by hiring their own contractor).
Morris County towns that do have rent control
2 of 39 municipalities in Morris County currently have a local rent control ordinance on file:
- Morristown — The allowable increase is the lesser of the percentage change in the RPI or the percentage change in the CPI, each measured from August of the year prior to lease expiration/termination to the preceding August.
- Randolph — Maximum annual increase of 6%, per the NJ DCA 2026 Rent Control Survey (ordinance text not yet verified).