The Rent Freeze Is Here. Most Park Slope Apartments Aren't Covered

As of October 1, 2026, rent-stabilized leases in New York City renew at 0%. In Park Slope, only about one occupied rental in five was stabilized in the city's most recent housing survey. For most apartments you'll tour on Fifth Avenue or in the side-street brownstones this fall, the freeze doesn't change the asking rent at all. In some buildings it may even push the unregulated units higher. If you're moving to Park Slope, the freeze matters apartment by apartment, and listings rarely tell you which side of the line a unit is on.

The question a listing can't settle

New York's own tools are careful on this point. The Rent Guidelines Board publishes lists of stabilized buildings, but it warns that a listed building has at least one stabilized unit. The list doesn't say which apartments those are. It also says contacting New York State Homes and Community Renewal is the only way to know an apartment's status.

So the check comes before the lease, not after:

1. Look the building up on the Rent Guidelines Board's stabilized building lists. Being on the list only tells you a unit there could be stabilized.
2. Run the building through the general coverage test. The usual test is six or more units, and either built before 1974 or newer with tax exemptions. Co-ops and condos are excluded.
3. Use the state's Ask HCR online portal to ask whether the specific apartment is stabilized. You can request its rental history on the same form.

That last step is the one that settles it. A building that passes the first two tests can still have market-rate apartments mixed in. The NYU Furman Center points out that older "legacy" stabilized buildings often contain both stabilized and market-rate units, a leftover from past deregulation.

What the freeze does for a new tenant

If the unit does come back stabilized, the freeze applies even though you're new to the apartment. The Rent Guidelines Board's Order #58, adopted June 25, 2026, covers stabilized leases that begin between October 1, 2026 and September 30, 2027. It sets 0% for both one-year and two-year terms. In a statement on the final vote, Mayor Zohran Mamdani called the two-year freeze the first in city history.

New tenants are covered because of a 2019 law. The Housing Stability and Tenant Protection Act, effective June 14, 2019, got rid of the vacancy increase landlords used to add when an apartment changed hands. The Rent Guidelines Board says the current order's guideline applies to vacancy leases as well as renewals. A first-time tenant in a stabilized unit signs a vacancy lease and can choose a one-year or two-year term, according to HCR Fact Sheet #5.

Lawful increases for major building improvements and individual apartment improvements, known as MCIs and IAIs, are handled under separate rules. The rental history from Ask HCR is how you see what the legal rent has been.

Why Park Slope gets less of the freeze than the headlines suggest

The coverage rule explains the gap. Stabilization mostly follows larger, older buildings. A brownstone split into three or four apartments falls under the six-unit threshold, and Furman counts smaller multifamily homes among the city's unregulated rentals. Much of Park Slope's rental stock is made up of exactly those small buildings.

The 2023 NYC Housing and Vacancy Survey figures on NYC Planning's Equitable Development Data Explorer put a number on it. Here's Park Slope next to the western Queens district that includes Sunnyside and Woodside:

The shares in the last column are our own math, stabilized units divided by occupied rentals. The city's table prints different percentages, 13.7% for Park Slope and 43.7% for western Queens, but those don't match the rental counts printed beside them, so the counts are the more reliable figures. Either way the gap is large. If you're comparing Park Slope with Sunnyside or Woodside, a stabilized apartment is something you might come across in Queens. In Park Slope you'll usually have to go looking for one.

The buildings where the freeze can cost you

For unregulated apartments, the city's rent increase guide is blunt: when a market-rate lease ends, there's no limit on the increase. In Park Slope, that covers most apartments.

THE CITY reported in August that real estate experts expect landlords in mixed buildings, the ones with stabilized and market-rate units under one roof, to raise market-rate rents to make up for the freeze on the regulated ones. The cost pressure behind that expectation is real. The Real Deal cited Rent Guidelines Board staff data showing operating costs up 5.3%. It noted that small owners with older buildings and heavy debt could feel the most strain, though possible deferred maintenance was a forecast rather than something already happening.

So two apartments in the same Park Slope walk-up can be heading in opposite directions. The stabilized unit renews at last year's rent. The market-rate unit across the hall is the one where an owner has room to raise the rent. The Ask HCR check tells you which one you're touring.

The fall market the freeze landed in

Since most Park Slope apartments are priced by the open market, the open market is the number to watch. Brooklyn's summer was steep. THE CITY reported a July 2026 median rent of $4,500, up 17% from a year earlier, citing a tracker from appraiser Jonathan Miller and The Real Deal.

Then it cooled. In Miller's September 2026 report, Brooklyn's median rent was $4,000, up 1.9% from September 2025 and flat with August after the July peak. Listings fell 17.3% from a year earlier to 5,681. Park Slope followed the same pattern. One brokerage's September 2026 survey of asking rents found the neighborhood's average down 1.03% from August.

Fewer listings means fewer apartments to choose from, and the freeze doesn't change that for market-rate units. THE CITY reported that rising mortgage rates are keeping would-be buyers in their rentals. Miller also suggested some landlords may be keeping units off the market while they figure out the FARE Act's broker-fee rules.

A freeze with a lawsuit attached

The freeze is in effect, but the courts haven't settled it. The board voted 7–1 in June, with public member Arpit Gupta the only no vote. On July 22, seven landlords sued, claiming the administration had compromised the board's independence, according to Brooklyn Paper. The city called the landlords' claims baseless, and Gothamist reported that Gupta said he did not experience any interference.

As of The Real Deal's October 1 report, Judge Brendan Lantry had declined to halt the freeze or carry over last year's increases. Landlords were already sending renewal offers at frozen rents, and tenants were signing them. Renewal offers go out at least 90 days before a lease ends, and the signed leases are binding. Landlord-side attorney Sherwin Belkin told the outlet that if the judge sends the decision back to the board, the court would likely need to say what happens to those leases. He added that a city appeal would automatically pause the judge's order.

FAQ

Does the freeze apply if I'm a new tenant, not renewing? Yes, if the apartment is stabilized. The Rent Guidelines Board says Order #58's guideline covers vacancy leases that begin within its October 1, 2026 to September 30, 2027 window.

If a building is on the stabilized list, is my apartment stabilized? Not necessarily. The lists only show that a building has at least one stabilized unit. HCR is the only way to confirm a specific apartment's status.

Can the lawsuit undo a lease I've already signed? No one knows yet. The leases are binding, and as of October 1 the court hadn't said what would happen to them if the freeze were sent back to the board.

If you're touring Park Slope apartments this fall and want to know which side of the freeze a unit falls on before you apply, Nelson Aybar can help you sort stabilized from market-rate and line up the HCR check, in English or Spanish. Get help in a New York minute. Contact Nelson.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.