Westchester County Landlord-Tenant Law: Navigating New York’s Most Complex Suburban Rental Market
Westchester County is not one rental market. It is forty-five rental markets — six cities, nineteen towns, and twenty villages, each with its own character, its own price points, and in several cases its own layer of landlord-tenant regulation layered on top of New York State law. A landlord who owns a rent-stabilized six-unit building in Yonkers, a market-rate four-unit building in White Plains, and a single-family rental in Scarsdale is operating under three meaningfully different regulatory regimes simultaneously, even though all three properties sit within the same county lines. Understanding Westchester as a landlord means understanding this complexity and building compliance practices that account for it property by property, not county-wide.
New York State Real Property Law Article 7 is the foundation for every residential tenancy in Westchester County. The fee limitations of RPP § 238-A — capping security deposits at one month’s rent, application fees at $20, and late fees at the lesser of $50 or 5% of monthly rent with a mandatory 5-day grace period — apply to every Westchester landlord without exception, regardless of whether the unit is rent-stabilized or market rate. The tiered notice requirements of RPP § 226-C apply to non-stabilized tenancies for any rent increase of 5% or more or any non-renewal. The warranty of habitability under RPP § 235-B is implied in every lease. These are the statewide baseline rules, and they do not yield to local custom or landlord preference.
Rent Stabilization in Westchester’s Cities
Westchester County has multiple municipalities operating rent stabilization systems, and this is the single most important legal fact for any landlord doing business in the county’s urban centers. Yonkers, Mount Vernon, New Rochelle, White Plains, and Peekskill all have rent stabilization systems applicable to qualifying buildings, generally those with six or more units constructed before 1974 that have not been deregulated through high-rent or high-income deregulation or other applicable exemptions. Yonkers operates through the Yonkers Rent Stabilization Board, which sets annual allowable rent increase guidelines for covered units and requires registration of stabilized buildings. Landlords with stabilized units in Yonkers must register annually, adhere to Board-approved increase guidelines, provide the required lease renewal notices and riders within the specified timeframes, and comply with all applicable procedural requirements — failure to do so creates rent overcharge liability and can compromise the landlord’s ability to commence eviction proceedings.
The most dangerous mistake a Westchester landlord can make is assuming that a building is not covered by rent stabilization without verifying that assumption with documentary evidence. Buildings that were stabilized and then improperly deregulated, buildings where the owner believed a high-rent exemption applied but the rent history does not support it, buildings where coverage lapsed due to administrative errors — all of these create situations where a landlord has been operating a building as market-rate while the tenant has legally cognizable claims to stabilized status and potential rent overcharge recovery. In Westchester, where rents are high and buildings have often changed hands multiple times, the exposure from an undetected stabilization issue can be substantial. Every Westchester landlord acquiring a building with six or more units built before 1974 should conduct a thorough rent history review before closing, and every existing owner of such a building who has not recently verified stabilization status should do so now.
Good Cause Eviction and the Market-Rate Market
For the substantial portion of Westchester’s rental market that is not covered by rent stabilization — newer buildings, smaller buildings, single-family rentals, units that have been lawfully deregulated — the Good Cause Eviction Law enacted as part of New York’s 2024 state budget now provides a layer of protection that did not previously exist. Under Good Cause, covered tenants in non-stabilized buildings cannot be evicted or have their lease non-renewed without a legally recognized reason, and rent increases exceeding the lower of 10% or 5% plus CPI are presumptively unreasonable. In Westchester’s high-cost market, where rents have risen sharply in recent years and landlords have sometimes used non-renewal as a tool to reset rents to market, Good Cause materially changes the calculus. Non-renewal of a covered tenancy now requires a stated, legally recognized reason — not simply the landlord’s preference to find a tenant willing to pay a higher rate.
The owner-occupancy exemption under Good Cause, applicable to buildings with fewer than four units where the owner genuinely resides on the premises, is relevant to Westchester’s significant population of two- and three-family homeowners who rent out one or two additional units. Many Westchester homeowners have used this model for decades as a way to offset mortgage costs in a high-cost housing market. For these landlords, the exemption may apply — but the word “genuinely” matters. The owner must actually reside in the building, not merely hold title. And the exemption must be verified before serving any non-renewal notice; assuming it applies without that verification step is a mistake.
The Commuter Market and Screening in a High-Cost County
Westchester County’s proximity to New York City, served by multiple Metro-North lines, makes it one of the most desirable commuter destinations in the northeastern United States. The county seat of White Plains, accessible from Grand Central Terminal in approximately 35 minutes by express train, has developed a substantial luxury rental market driven by professionals who work in Manhattan but prefer Westchester’s space, schools, and quality of life. New Rochelle, Yonkers, Tarrytown, and Ossining similarly attract commuters for whom the train commute is a reasonable trade for more living space at lower cost than Manhattan or Brooklyn. This commuter demand creates a tenant pool with generally strong income profiles and a high premium on proximity to train stations — properties within walking distance of Metro-North stations in Westchester command meaningful rent premiums over otherwise comparable properties further from the line.
Screening in Westchester’s high-cost market requires the same legal discipline as anywhere in New York State, but the stakes are higher given the rents involved. Source-of-income discrimination is prohibited under New York State Human Rights Law, meaning that applicants using housing vouchers or public assistance must be evaluated on the same objective criteria as any other applicant — income sufficiency relative to rent, credit history, and rental history. In Westchester’s cities, where housing voucher use is common and rents are high, consistent screening standards that do not vary based on source of income are not merely a legal requirement; they are essential protection against discrimination claims that can be costly to defend regardless of outcome. Landlords should use written screening criteria applied uniformly to every applicant and retain documentation of every screening decision for at least three years.
This page is provided for general informational purposes only and does not constitute legal advice. Westchester County landlord-tenant matters are governed by New York Real Property Law Article 7 (RPP §§ 220–238-A), the Good Cause Eviction Law, applicable local rent stabilization laws, and other applicable state and local law. Security deposit cap: 1 month’s rent. Application fee cap: $20. Late fee cap: lesser of $50 or 5% monthly rent; 5-day grace period. Notice requirements: 30/60/90 days based on tenancy length for non-stabilized units. Rent stabilization applies to qualifying buildings in Yonkers, Mount Vernon, New Rochelle, White Plains, Peekskill, and other municipalities. Good Cause Eviction Law applies to covered non-stabilized buildings. Consult a licensed New York attorney before taking any action involving a stabilized tenancy, a Good Cause-covered tenancy, or any building where stabilization coverage is uncertain. Last updated: March 2026.
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