In NYC co-op buildings, only 1 in 3 open house visitors is a serious buyer, according to REBNY broker survey data. The rest are neighbors, browsers, and market researchers. After 25+ years running open houses from Washington Heights to Lower Manhattan, I have developed a system that filters out the browsers and converts serious visitors into offers. This guide explains that system in full.
Open houses serve multiple functions in an NYC listing campaign: they generate showing volume quickly, they create the perception of competitive interest (which is real psychological leverage), and they surface buyers who might not have booked a private appointment but are ready to act once they see the property in person. Used correctly, they are a valuable tool. Used without strategy, they burn seller time and energy with limited results.
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Milton Coste, Licensed Real Estate Associate Broker at Keller Williams NYC, has represented sellers across all five boroughs for 25+ years.
Schedule a Free ConsultationThe NYC Open House Landscape: Elevator Buildings, Doormen, and Security
Running an open house in a Manhattan elevator building is operationally different from a standalone townhouse or low-rise walkup. The building infrastructure is your first logistical challenge.
Coordinating With Building Staff
Before you advertise any open house date, your agent needs to confirm:
- Building management notification: Most co-op and condo managing agents require 48 to 72 hours written notice before an open house. Some require board notification. Your agent should have a standard notification letter that covers all required parties.
- Lobby access and signage: Many NYC buildings do not allow open house signs in the lobby or elevator. Confirm what is permitted before ordering printed materials.
- Elevator availability: If the building has one elevator and a move is scheduled for the same afternoon, your open house logistics become complicated. Check the building's move-in/move-out calendar.
- Doorman briefing: The doorman is your first point of contact with visitors. Make sure they know the unit number, the listed agent's name, and how to handle visitors who arrive without signing in at the door.
Security Considerations
Open houses are lower-security events than appointment showings by their nature. Best practices for NYC open houses:
- Remove or secure all jewelry, medication, personal documents, and small valuables before every open house
- Position the listing agent or a co-agent so at least one person can see all access points at any given time
- Use a digital sign-in system (tablet-based apps like Open Home Pro capture more complete data and cannot be left behind accidentally)
- Never leave the unit unattended while visitors are inside
Timing Your Open House for Maximum Traffic
| Day / Window | Best For | Notes |
|---|---|---|
| Sunday 12pm to 2pm | Most neighborhoods, most price points | Highest buyer foot traffic citywide |
| Saturday 1pm to 3pm | Neighborhoods with out-of-town or relocating buyers | Good for new developments; some buyers prefer Saturday |
| Weekday 12pm to 1:30pm | Midtown, FiDi, downtown Manhattan | Office-worker buyer pool; lower volume but higher intent |
| Sunday 2pm to 4pm | Properties that tend to get multiple offers | Buyers leaving first open houses arrive here primed to act |
Pre-Open-House Checklist
The 24-hour window before the first open house is when most of the work happens. Every item on this list needs to be completed before a single visitor walks through the door.
48 Hours Before
- Notify building manager/super in writing
- Brief doorman on the event and agent contacts
- Order printed feature sheets (1 per expected visitor + 20%)
- Confirm photographer has delivered all edited listing photos
- Verify listing is live on RLS, StreetEasy, Zillow, and Trulia
- Share open house date on social media and in email blast
Day Of: 60 Minutes Before
- Deep-clean apartment one final time
- Turn on all lights; set temperature to 70F
- Remove all personal items from surfaces
- Open blinds/curtains fully
- Set out feature sheets, floor plans, and sign-in tablet
- Remove all valuables, medication, personal documents
- Depart the property (do not be present)
Working With Building Management for Access
In co-ops, the relationship between the listing agent and the managing agent is especially important. Some co-op managing agents require that they be present at all open houses, or that the listing agent hold a certificate of insurance. Others require that all visitors sign a non-disclosure form before entering a shareholder's unit.
My standard practice is to obtain the building's specific open house requirements at the beginning of the listing engagement, not the day before the first event. A managing agent who feels blindsided by an open house notification 12 hours in advance can cause delays that affect your listing launch.
Sign-In Sheet Requirements and Data Capture
The sign-in sheet is your lead capture system. Visitors who decline to sign in are typically not serious buyers, but the sheet also serves a legal function: it documents who was in your property on a given date, which can matter in the rare event of a theft or damage claim.
Minimum fields to capture:
- Full name
- Phone number
- Email address
- Are you working with an agent? (yes/no)
- If yes, agent name and brokerage
REBNY 2025 Buyer Representation Rule
Under REBNY's 2025 buyer representation rules, buyers must have executed a Buyer Representation Agreement with their agent before attending a private, appointment-based showing. Public open houses operate under different protocols. Your listing agent should stay current on how this rule applies in the specific showing context to ensure compliance.
Marketing an NYC Open House
An open house that no one knows about accomplishes nothing. The marketing window for an open house is the five to seven days before the event. Key channels:
- RLS/REBNY open house listing: Your agent should add the open house to the RLS system, which syndicates to StreetEasy, Zillow, and Trulia. Buyers on saved searches for your area receive automatic email alerts.
- Email to agent network: A direct email to the 20 to 40 buyer agents most active in your neighborhood is often the highest-converting single action. Agents with buyers in that exact price range and neighborhood will respond within hours.
- StreetEasy open house feature: StreetEasy allows sellers and agents to promote open houses as a paid feature. In competitive markets, this is worth the spend for high-traffic listings.
- Social media: Instagram Stories and Facebook posts with the specific address, time, and a compelling photo of the best room in the apartment.
- Building neighbors: Neighbors often know buyers. A tasteful note in the lobby bulletin board or a door flyer (where permitted by building management) can generate walk-in traffic from within the building's social network.
Converting Walk-Ins to Offers
The open house ends, but the work is not over. The conversion window is the 24 to 48 hours following the event. Every signed-in visitor represents a warm lead who has physically been in the property and has given you permission to follow up.
The most effective follow-up sequence:
- Same-day text or email (within 4 hours): "Thank you for visiting [address] today. I'm happy to answer any questions or schedule a second showing at your convenience."
- 24-hour follow-up call (for high-interest visitors): Visitors who asked specific questions about price, maintenance costs, or the building financials during the open house are strong prospects. A direct call within 24 hours keeps the momentum.
- Second showing offer (for any visitor who expressed interest): A second showing request is the strongest signal of buyer intent short of an offer. Book it within 48 to 72 hours while the property is fresh.
Virtual Open House Alternatives
For sellers who cannot vacate for physical open houses, or for listings targeting buyers outside the immediate area, virtual open houses via Zoom or FaceTime have become a standard supplement. A live virtual tour is not a replacement for an in-person showing, but it can capture buyers who would not otherwise attend and can qualify them before they invest time in a trip.
My virtual open house setup includes a stabilized camera for smooth movement, strong lighting in all rooms, and a pre-planned tour route that highlights the property's strongest features in the first two minutes.
Review the staging guide to make sure the property is showing-ready, or read about what happens after you accept an offer in the NYC closing process guide.
Homes With Upcoming Open Houses
Active sale listings across all five boroughs. Source: REBNY RLS.
788 9th Avenue #5C
Hell's Kitchen
575 Main Street #1310
Roosevelt Island
Listing information provided courtesy of the Real Estate Board of New York's Residential Listing Service (RLS). Information is deemed reliable but not guaranteed. Sale listings verified. ©2026 REBNY. RLS data displayed by Keller Williams NYC.
Frequently Asked Questions
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