Beekman Mansion
439 East 51st Street, New York, NY 10022
BBL 1013630016 · BIN 1040138
- Year built
- 1925
- Type
- Cooperative
- Landmark status
- Not an individual landmark; not in a historic district
- NYC Landmarks Preservation Commission and City Planning records, updated February 2026
- Subletting by shareholders
- Permitted with conditions
- Pied-à-terre
- Permitted
- Pets
- Pets permitted with conditions; species not stated
- Washer/dryer
- Permitted
- Maximum financing
- 65% of the purchase price
- Flip tax
- 2% of the purchase price, paid by the seller
- Doorman
- Full-time doorman
Every recorded sale at this building, 2004–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 2BR median, 2023–2026
- $942K
- 4 qualifying sales
- Recent range
- $855K – $4.2M
- Listing discount
- 5.0%
- Recorded transfers
- 43
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at Beekman Mansion would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.
439 East 51st Street sits at the end of one of Manhattan's most coveted dead-end blocks, where 51st Street narrows toward Peter Detmold Park and the East River. This is the Beekman enclave — a hushed, low-traffic pocket of pre-war cooperatives, diplomatic residences, and townhouses three blocks north of the United Nations, insulated from the noise of Midtown a few avenues west. Beekman Mansion is one of its defining buildings: a 1925 cooperative that trades on privacy, proportion, and service.
The architecture rewards a close look. The four-story brick-and-stone base is the building's strongest gesture — fine bas-reliefs at street level, a third-story arcade flanked by pseudo-towers, and five Gothic-arched entryways. The center doors lead to a conventional elevator lobby; the flanking doors open into maisonettes, duplex homes with private street entries. The upper floors are deliberately restrained, letting the base carry the design.
For buyers, the case is straightforward: a white-glove co-op of 36 apartments on a quiet riverside block; assess its financial position from current statements, debt, reserves and capital plans.
Architecture and unit composition
At 36 residences across 10 stories, Beekman Mansion is intimate by design, with a low ratio of apartments to staff. The neo-Renaissance façade gives the address its dignity, while the maisonette duplexes at the base are a distinctive feature, offering townhouse-style living with the security and service of a full co-op. Above, the apartments are classic pre-war: gracious room counts, solid construction, and the proportions that buyers seek in this era of the East Side.
Because the building is small, layouts vary, and value is set by floor, light, river or garden orientation, and the quality of each home's most recent renovation. A penthouse or a high-floor home with open exposures toward the river commands a clear premium over a lower interior unit.
Building operations
Beekman Mansion is a white-glove cooperative with a 24-hour doorman, a live-in superintendent, daily hand-delivered mail, a fitness room, central laundry, and private storage when available. The building's policies are owner-friendly within a pre-war framework: pets are welcome, with no breed restriction; pied-à-terre purchases are permitted; financing of up to 80% is allowed; and a 2% flip tax is paid by the seller. Subletting is permitted on a measured basis — generally one year with a renewal option — preserving the building as a primarily owner-occupied community. Current assessment status and financial condition require dated building records; the service package does not establish financial health.
Application and transaction fees
Fees below are from building management's published schedule, as of September 2026. They are shown as published, item by item; no total is added because the total depends on the transaction. Deposits are listed apart from nonrefundable charges.
- Terms
- Equal to 2% of the Purchase Price
- Rate
- 2% of the purchase price
- Paid by
- Seller
Source: building management's published schedule, as of September 2026
Purchase
7 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Buyer | When With the application | Amount $775 | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Credit Check Fee - Per Applicant/Adult OccupantPer applicantPaid to management | Paid by Buyer | When With the application | Amount $150 | Refundable Non-refundable |
| Add/Remove Spouse or Change Beneficiaries FeePaid to management | Paid by Buyer | When At closing | Amount $775 | Refundable Not stated |
| Lost Stock & Lease FeeConditionalPaid to management | Paid by Buyer | When At closing | Amount $775 if applicable | Refundable Not stated |
| Recognition Agreement FeeConditionalPaid to management | Paid by Buyer | When At closing | Amount $325 if financing | Refundable Not stated |
| Closing FeePaid to management | Paid by Shareholder | When At closing | Amount $725 | Refundable Not stated |
Sublet
4 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Subtenant | When With the application | Amount $575 plus $200 for more than one applicant | Refundable Non-refundable |
| Credit Check FeePaid to management | Paid by Subtenant | When With the application | Amount $150 | Refundable Non-refundable |
| Sublease Renewal FeeRecurringPaid to the building | Paid by Shareholder | When Upon approval | Amount Equal to 10% of the gross monthly sublease rent plus 15% of the positive difference between the gross monthly sublease rent less the monthly maintenance charge for the term of the lease. | Refundable Non-refundable |
Sublet renewal
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Subtenant | When With the application | Amount $225 | Refundable Non-refundable |
Refinance
1 item
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Shareholder | When With the application | Amount $300 | Refundable Non-refundable |
Ownership transfer
15 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Buyer | When With the application | Amount $775 | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Credit Check FeePer applicantPaid to management | Paid by Buyer | When With the application | Amount $150 per applicant | Refundable Non-refundable |
| Recognition Agreement FeeConditionalPaid to management | Paid by Buyer | When At closing | Amount $325 if financing | Refundable Not stated |
| Closing FeePaid to management | Paid by Shareholder | When At closing | Amount $725 | Refundable Not stated |
| Flip TaxPaid to the building | Paid by Shareholder | When At closing | Amount Equal to 2% of the Purchase Price | Refundable Non-refundable |
Transfer: trust
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Closing FeePaid to management | Paid by Shareholder | When At closing | Amount $500 | Refundable Non-refundable |
Transfer: estate
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Buyer | When With the application | Amount $775 | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Credit Check FeePer applicantPaid to management | Paid by Buyer | When With the application | Amount $150 per applicant | Refundable Non-refundable |
| Recognition Agreement FeeConditionalPaid to management | Paid by Buyer | When At closing | Amount $325 if financing | Refundable Not stated |
| Closing FeePaid to management | Paid by Shareholder | When At closing | Amount $725 | Refundable Not stated |
| Flip TaxPaid to the building | Paid by Shareholder | When At closing | Amount Equal to 2% of the Purchase Price | Refundable Non-refundable |
Management updates its schedule without a public filing. The date is when management last updated the page, not when a rule changed. Confirm the current schedule with management before you apply.
Considering an apartment here? Send Corey the listing to discuss the building's costs and purchase requirements.
Own an apartment here? Request an apartment-specific pricing review.
Financing and purchase requirements
- Maximum financing
- 65% of the purchase priceSource: building management's published schedule, as of September 2026
- Guarantors
- PermittedSource: building management's published schedule, as of September 2026
- Co-purchasing
- PermittedSource: building management's published schedule, as of September 2026
- Parent buying for an employed child
- Permitted with conditionsCase by case basis.Source: building management's published schedule, as of September 2026
- Parent buying for a student child
- Not permittedSource: building management's published schedule, as of September 2026
- Purchase or lease by a corporation
- Not permittedSource: building management's published schedule, as of September 2026
Sublet and pied-à-terre policy
A condominium owner leasing a unit and a co-op shareholder subletting are different rules, and a building-wide rule is different from a restriction on one apartment. This is the building's rule; confirm it for the specific apartment.
- Subletting by shareholders
- Permitted with conditionsWith Board Approval, sublet fees apply. One year terms only. Limited to Two Years.Source: building management's published schedule, as of September 2026
- Pied-à-terre ownership
- PermittedSource: building management's published schedule, as of September 2026
- Short-term rentals
- Not permittedSource: building management's published schedule, as of September 2026
Considering an apartment here? Send Corey the listing to discuss the sublet and pied-à-terre rules for that apartment.
Pets and in-unit washer/dryer
- Pets
- Pets permitted with conditions; species not statedPet Friendly, no exotic animals.Source: building management's published schedule, as of September 2026
- In-unit washer/dryer
- PermittedSource: building management's published schedule, as of September 2026
Considering an apartment here? Send Corey the listing to confirm the pet and washer/dryer rules for that apartment.
Monthly carrying charges in recent sales
- Maintenance, per room
- $668 per room a monthMedian of 5 recorded sales since October 2023Source: recorded sales, refreshed October 2026
- Maintenance, per square foot
- $2.48 per square foot a monthMedian of 3 recorded sales since October 2023Source: recorded sales, refreshed October 2026
Maintenance as recorded with each sale. A co-op's maintenance already covers the building's real estate taxes and the building's own mortgage, if it has one; add your own loan payment for the monthly outlay. A summary of recorded sales, not a current bill; charges change.
Building staffing and amenities
- Doorman
- Full-time doormanSource: The Roebling Team's building profile
- Attended lobby
- YesSource: The Roebling Team's building profile
- Live-in superintendent
- YesSource: The Roebling Team's building profile
- Elevator
- YesSource: NYC Department of City Planning records (PLUTO)
- Amenities noted
- Fitness room, storage, laundry roomSource: The Roebling Team's building profile
Staffing and amenities as our building profile and recent listing records describe them. A feature not listed is not confirmed absent. Outdoor space, parking and some facilities can belong to particular apartments or to a separate owner; confirm access for the specific apartment.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $18,984/yr
- Per unit / month range
- $0 – $44
- Modeled exposure split equally across 36 units (the residential count on the city's lot record). Not an assessed amount; co-op shareholders are typically charged by share allocation.
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City data last refreshed October 2026.
See full Local Law 97 analysis — emissions history, scenarios, methodology →Facade safety — Local Law 11
The latest available filing classified the facade as SWARMP — Safe With A Repair and Maintenance Program: the inspector (QEWI) identified conditions requiring monitoring or repair, with repairs due by the deadline stated in the filing. The scope, timeline, and how the building funds the work are building-specific — we review the filings and board materials for you.
How to read this, and where it comes from
QEWI = Qualified Exterior Wall Inspector — a licensed professional engineer or registered architect who meets DOB’s FISP qualifications and signs the report (the independent expert, not the managing agent).
Penalties shown are amounts DOB assessed against filings on record across 2005–10 to 2020–25. The FISP dataset does not record whether they were paid, contested or remain open, so treat the figure as history rather than a current balance and confirm the building’s standing with the managing agent.
Source: NYC DOB facade filings (FISP) · The Roebling Research Library. City data last refreshed October 2026.
Management & transfer contacts
- Flip tax
- 2% of purchase price, paid by seller
- Sublet policy
- Allowed with board approval; one-year terms only, limited to two years. Sublease renewal fee ~10% of gross monthly rent plus 15% of positive difference over maintenance
- Pied-à-terre
- Allowed
- Policies and fees
- Application processing $775; closing fee $725. Max financing 65%
Recent sales
Recent transfers at this building, from The Roebling Research Library. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Apr 9, 2026 | 3D | 2 BR · 1 BA | $855,000 | +0.7% | |
| Jul 1, 2025 | 6C | 2 BR · 1 BA · 1,000 sf | $985,000 | $985/sf | -1.4% |
| Oct 15, 2024 | 3A | 4 BR · 3 BA · 2,200 sf | $1,597,500 | $726/sf | -11.0% |
| Jun 24, 2024 | 9F | 4 BR · 3 BA · 2,100 sf | $1,800,000 | $857/sf | -5.0% |
| May 16, 2024 | 5D | 2 BR · 1 BA | $898,000 | +0.0% | |
| Sep 26, 2023 | 8C | 2 BR · 2 BA · 1,440 sf | $1,250,000 | $868/sf | -15.3% |
| Aug 4, 2023 | 10 | 5 BR · 4 BA | $4,150,000 | -7.7% | |
| Jul 12, 2022 | MAIS441 | 3 BR · 2.5 BA · 2,138 sf | $1,750,000 | $819/sf | -2.8% |
Market read. $/sf is measured on the latest sales with reliable square footage (2025): a median $961/sf (floor-adjusted) across 1 sale. The building has traded as recently as 2026. Median listing discount 4.5% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01363-0016). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage on co-ops is not officially recorded, figures shown are approximate.
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What to know if you’re buying
This is a co-op purchase, so a board package and interview are part of the process — plan for it. The building's published posture is buyer-friendly relative to many pre-war peers: up to 80% financing, pied-à-terre ownership allowed, and pets welcome. The 2% seller-paid flip tax is a known cost to factor into resale math. Diligence should focus on the financials, the reserve, any planned capital projects, and the specifics of the apartment — a maisonette duplex and a high-floor simplex are very different propositions. We help buyers read the building, prepare a clean board package, and benchmark the price against true Beekman comparables.
What to know if you’re selling
Scarcity and setting are the story. A home here is sold on the Beekman address, the quiet cul-de-sac, the white-glove service, and its distinctive maisonette layouts — and the comparison set is the small universe of Beekman and Sutton Place pre-war co-ops, not the louder avenues to the west. Maisonette duplexes and high-floor homes with river orientation should be marketed on their distinct character. Pricing to the building's own recent closings and presenting the apartment's pre-war proportions accurately are what produce a strong, efficient sale.
Comparable buildings
If you're considering Beekman Mansion, also evaluate these Beekman and Sutton Place co-ops:
- 433 East 51st Street — a neighboring Beekman co-op
- 420 East 51st Street — a full-service East 51st Street building
- 410 East 52nd Street — a Southgate-area cooperative
- 444 East 52nd Street — Beekman Terrace, a pre-war co-op nearby
- 400 East 51st Street — The Grand Beekman
More Sutton Place buildings
- 434 East 52nd Street — 1928 co-op by Emery Roth
- 434 East 58th Street — 1930 co-op
- River House (435 East 52nd Street) — 1931 co-op by Bottomley, Wagner & White
- 440 East 57th Street — 1961 co-op
- Sutton Manor, 440 East 56th Street — 1955 co-op
- 444 East 57th Street — 1929 condominium by Lafayette A. Goldstone
The neighborhood
For the full corridor — architecture, transit, and pricing across Sutton Place — read The Roebling Team Guide to Sutton Place.
The full playbook — what goes in the package, how boards read your financials, the interview, and the timeline — plus sample cover, reference, and personal letters you can adapt.
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
Considering a move at Beekman Mansion?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
646.939.7375 · c.cohen@compass.com