According to StreetEasy, which publishes asking-rent data for New York City apartments, the median asking rent in Manhattan was $4,995 in September 2026. When a resident paying rent gives notice, the owner loses that rent for every month the unit sits empty and pays for the work to make it ready. Since June 2025, the owner also pays a broker fee if they hired one.
That ties retention to net operating income (NOI). Site managers are responsible for the resident retention strategies that protect NOI: how often you communicate, how fast maintenance closes, how easy amenities are to use, and when renewal conversations start.
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What resident retention is and how to measure it
Resident retention is the share of residents who renew their leases rather than move out. You measure it as a retention rate: lease renewals divided by leases that expired in the same period. If 60 of 100 expiring leases renew, your retention rate is 60%.
For a national benchmark, just over 54% of market-rate renters renewed in the year ending October 2024, according to RealPage. That's above the 50.7% national average for 2010 to 2019.
Track the rate for each property on a trailing 12-month basis. RealPage calculates its renewal rates that way to remove seasonality, since renewals typically rise in summer when more leases are signed.
What one move-out costs a New York City rental building
NOI is what a property collects in rent and other income, minus what it spends to operate. Every time one resident moves out and another moves in, NOI drops in 3 ways.
The first is vacancy days. Every day between one lease ending and the next one starting is rent you don't collect.
New York's tight market shortens that stretch. The city's Department of Housing Preservation and Development (HPD) 2023 Housing and Vacancy Survey put the citywide net rental vacancy rate at 1.41%, the lowest since 1968. A short vacancy only trims this first cost.
The second is make-ready, the repair, paint, and cleaning work that gets a unit back to rentable condition. It's your staff's hours or a vendor's invoice, and you pay for it whether the next resident signs in a week or a month.
The third is leasing cost, which in New York City now includes the broker fee. The city's Fairness in Apartment Rental Expenses (FARE) Act, Local Law 119 of 2024, took effect June 11, 2025. Under it, a landlord's agent can't charge fees to prospective renters, so if you hire the broker to fill the unit, the fee is yours.
We built the national cost of a single turn line by line in our apartment turnover checklist. The New York version needs one more step: comparing that cost to what a unit earns.
The NYC math
The NYC Rent Guidelines Board (RGB) publishes the city's own public benchmark for what a rental unit earns. In its 2026 Income and Expense Study, buildings with rent-stabilized units collected $1,890 per unit per month in total income in 2024, of which $1,681 was rent. They spent $1,203 to operate and kept $688 as NOI (the RGB rounds each figure).
Taxes, insurance, and payroll keep running while a unit is empty, so lost rent comes almost straight out of NOI. For that average unit, one vacant month costs $1,681, which is about 2.4 months of its NOI. The RGB sample covers buildings that contain rent-stabilized units, so treat it as a citywide benchmark rather than your building's number.
A market-rate Manhattan unit runs bigger numbers. At the $4,995 median, one vacant month costs $4,995 before any make-ready work. If your broker charges one month's rent (terms vary, so use yours), that's another $4,995, plus the make-ready invoice.
Divide that total by your own NOI per unit per month. The answer is how many months of profit one move-out erases. The dollar total is your retention budget: if keeping a resident costs less than that and it works, the owner comes out ahead.
4 resident retention strategies NYC managers control
Rent levels, the job market, and a resident's growing family are outside your reach. These 4 are within your control:
1. Set a communication schedule and stick to it.
2. Resolve maintenance requests quickly and keep residents informed.
3. Make amenities easy to book.
4. Start renewal conversations early.
1. Set a communication schedule and stick to it
The National Multifamily Housing Council (NMHC) and Grace Hill 2024 Renter Preferences Survey included more than 172,000 renters. Of those, 85% said property staff show a culture of respect and kindness, and 75% said they feel their wellbeing is important to community management.
Both measure how residents see management, and communication is the part that you can put on a schedule.
Put the rhythm on the calendar: a monthly building update, advance notice before planned water or elevator shutoffs, and a follow-up when the work is finished. Hold to it in quiet months too.
BuildingLink's communications tools let management post an announcement to the resident app, the resident site, and the community's public display, and send it by email with one click. You set start and end dates for each announcement.
Run a short survey twice a year, using rating, multiple-choice, or short-answer questions. That gives you time to fix what residents raise before their renewal comes up. Our end-of-year resident survey guide has questions you can reuse.
2. Resolve maintenance requests quickly and keep residents informed
Residents see 2 things in every request: how long it took, and whether anyone told them what was happening. Fix both.
Maintenance requests come in from the BuildingLink resident app or portal and go straight to building staff. Residents get automatic notifications when staff take action on their requests and can see completed ones in the portal.
To find where requests stall, run the maintenance requests by time to close report, or the version broken out by category. Both are built to surface lingering and slow-to-resolve requests.
If plumbing requests take twice as long as everything else, that's the staffing or vendor conversation to have this month.
When a repair means entering a home: KeyLink
Some repairs happen while the resident is out, which means staff need the unit key. That makes the key itself part of the resident's experience.
KeyLink is BuildingLink's key management add-on. It combines locking key drawers, fingerprint authentication for authorized staff, and SmartTags attached to each key. Every key removed and returned is logged in an audit trail, and staff can capture a signature and photo when a key goes out.
For retention, the most useful part is the notification. Management can set KeyLink to automatically notify residents when a unit key is removed or returned.
If your building still tracks keys on a paper log, our property manager's guide to key control has templates for tightening the process first.
3. Make amenities easy to book
If booking the gym or the party room still takes a phone call and a paper sign-up sheet, move it into the app. With amenity reservations in BuildingLink, residents request an amenity in the app, and you can set the system to notify them when you approve or decline the reservation.
Before you spend capital on a new amenity, ask residents which ones they use and what gets in the way. A 2-question survey keeps the renovation budget pointed at what residents will use.
4. Start renewal conversations early
New York sets minimum notice periods for renewals. Treat them as floors, and start well ahead of them.
For market-rate units, Real Property Law Section 226-c covers any rent increase of 5% or more and any decision not to renew. Notice is based on the longer of the time in the unit or the lease term: at least 30 days for under a year, 60 days for 1 to 2 years, and 90 days for 2 years or more. A first-year resident on a 12-month lease is owed 60 days.
For rent-stabilized units in New York City, the state Division of Housing and Community Renewal (DHCR) Fact Sheet #4 requires the renewal offer on the DHCR Renewal Lease Form (RTP-8). It must be mailed or hand-delivered between 150 and 90 days before the lease expires. The resident then has 60 days to accept.
Good Cause Eviction, a state law passed in New York's FY2025 budget, also affects renewals in covered units. Under Real Property Law Section 216, a landlord can't remove a covered resident, even after the lease ends, without a court order on one of the law's listed grounds.
Per New York State Homes and Community Renewal, increases above 10% or 5% plus the Consumer Price Index (CPI), whichever is lower, are presumed unreasonable. Not every unit is covered, so confirm which of yours are.
Start the renewal conversation about 120 days out for market-rate units, and before the 150-day offer window opens for rent-stabilized units. That leaves time to fix any issues a resident mentions before you send the renewal, and to reach an undecided resident before they start touring other buildings.
When a resident pushes back on the renewal increase, go back to the turn cost you calculated. A concession smaller than one vacant month, a fresh coat of paint, or an appliance replacement can still leave the owner ahead.
Why the renewal calendar matters this fall
If you have rent-stabilized leases ending in March 2027, you must send renewal offers by December 1 to 31, 2026, depending on the expiration date. For rent-stabilized leases ending in April 2027, the 150-day window to send offers opens between November 2 and December 1. For market-rate leases ending March through May, the 120-day conversation runs from November 1 to the end of January.
The renewals that set your spring occupancy get decided this winter. If you want to see how announcements, maintenance tracking, amenity reservations, and KeyLink work together in a New York City rental building, connect with a member of our team.
Frequently Asked Questions
Resident retention is the share of residents who renew their leases instead of moving out. Multifamily owners and managers track it as a retention rate to see how well a property keeps the residents it already has.
Divide the number of lease renewals by the number of leases that expired in the same period, then multiply by 100. If 60 of 100 expiring leases renew, the retention rate is 60%.
Compare against 2 national figures from RealPage: just over 54% of market-rate renters renewed in the year ending October 2024, and the 2010 to 2019 average was 50.7%. The most useful comparison is each building against its own prior years.
They mean the same thing: keeping current renters through lease renewal. "Resident" is the common term in multifamily operations, and "tenant" is the term New York's housing laws use, including its renewal notice rules.
For rent-stabilized units, the renewal offer must go out between 150 and 90 days before the lease expires. Other units need 30, 60, or 90 days' notice of a rent increase of 5% or more or a non-renewal, based on the longer of time in the unit or lease term. A conversation about 120 days out clears those deadlines; for rent-stabilized units, start before the 150-day offer window opens.
It depends on your rent, how long the unit sits empty, your make-ready costs, and whether you pay a broker. For the average unit in the NYC Rent Guidelines Board's 2026 study, one vacant month of rent equals about 2.4 months of net operating income, before make-ready or broker fees.
