605 Park Avenue
605 Park Avenue, New York, NY 10065
BBL 1013990074 · BIN 1042391
- Year built
- 1954
- Type
- Cooperative
- Units
- 105
- Floors
- 21
- Landmark status
- Not an individual landmark; in the Upper East Side Historic District
- NYC Landmarks Preservation Commission records, updated February 2026
- Subletting by shareholders
- Permitted with conditions
- Pied-à-terre
- Permitted with conditions
- Dogs and cats
- Permitted with conditions
- Washer/dryer
- Permitted with conditions
- Maximum financing
- 75% of the purchase price
- Flip tax
- 2% of the purchase price
- Doorman
- Full-time doorman
- Flip tax
- 2% of the sale price.
- Financing
- Up to 75% financeable (25% minimum down).
- Subletting
- Permitted with Board approval. Short-term rentals and AirBnB are not permitted.
- Pied-à-terre
- Permitted.
- Washer / dryer
- Permitted in-unit.
- Pets
- Permitted, subject to Board approval.
- Co-purchasing
- Permitted. Parents purchasing for children not permitted.
- Guarantors
- Not permitted.
Compiled by The Roebling Research Desk from the building’s offering plan, amendments, and related building documents (primary source dated 2026). Board policies can change by amendment — confirm at the offer stage.
Every recorded sale at this building, 2003–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 2BR median, 2024–2026
- $2M
- 5 qualifying sales
- Recent range
- $925K – $6.1M
- Listing discount
- 4.0%
- Recorded transfers
- 104
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 605 Park Avenue 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.
605 Park Avenue is among the substantial post-war white-brick cooperatives that occupy the Lenox Hill Park Avenue corridor alongside the surrounding 1920s pre-war stock. The 1954 Sylvan Bien construction places 605 Park within the post-war Park Avenue building boom — a 1948–1965 era when developers added taller, larger-unit-count buildings to the corridor between the dense pre-war cluster.
Sylvan Bien was a prolific post-war Manhattan apartment architect. His broader portfolio includes The Carlyle Hotel (1929–30), 860 Fifth Avenue (1949–50) and substantial mid-century luxury residential commissions across the Upper East Side. 605 Park is a representative example of the firm's mid-1950s Park Avenue idiom — 21 stories, 105 apartments, white-brick exterior, modular casement windows, and a building scale materially larger than the surrounding pre-war stock.
The 1954 vintage matters meaningfully for prospective buyers. Compared to pre-war Park Avenue inventory:
- Ceiling heights are typically 8.5–9 feet rather than the pre-war 10–11 feet
- Building systems are post-war (central air, modern plumbing) rather than original 1920s
- Layouts lean toward L-shaped living/dining combinations rather than the pre-war formal foyer + separate dining room
- Walls are sheetrock rather than plaster, with materially different sound isolation
- Maintenance should be compared with specific prewar buildings using current charges, included services and reserve needs
- Architectural detail (moldings, fireplaces, prewar character) is absent
The southeast-corner positioning at Park Avenue and East 65th Street places 605 Park at the heart of the Lenox Hill Gold Coast corridor — south of the dense 720/740/770/778 Park Avenue Candela pre-war cluster and within walking proximity to The Frick Collection (Fifth Avenue and 70th), Park Avenue Armory, and the broader Lenox Hill amenity base.
For buyers, 605 Park represents a particular tier of Lenox Hill Park Avenue inventory: post-war Sylvan Bien architectural pedigree, central Lenox Hill positioning, prices to compare against dated matched sales in surrounding prewar buildings, and postwar construction whose actual systems, maintenance and condition should be checked against specific prewar alternatives.
For the broader framework comparing pre-war and post-war Manhattan inventory: Pre-war vs. Post-war Manhattan Apartments.
Architecture and unit composition
The building's 1954 post-war vintage produces the era's signature architectural language: 21-story white-brick massing, modular casement windows, modernist clean lines, and a building scale materially larger than the surrounding pre-war stock. The architectural language is characteristic of Sylvan Bien's mid-1950s Park Avenue idiom.
Post-war signatures throughout the building:
- 8.5–9 foot ceilings in primary rooms
- L-shaped or combined living/dining layouts in many lines (rather than pre-war formal foyer + separate dining)
- Modern bathroom and kitchen positioning consistent with 1950s luxury construction
- Some apartments include private balconies (a post-war feature absent from the surrounding pre-war stock)
- Central air conditioning and modern building systems
The southeast-corner positioning at Park and 65th produces distinctive apartment configurations on the corner residences, with cross-exposure light access. Park Avenue-facing apartments (west exposure) look across the Park Avenue median plantings. 65th Street-facing apartments (north exposure) have cross-street exposures.
Building operations
605 Park Avenue operates as a full-service post-war cooperative. Specific operational details — corporation name, managing agent, financing posture, flip tax structure, sublet policy specifics, pied-à-terre allowance — should be confirmed directly with property management during due diligence. The board posture follows tier-one Lenox Hill Park Avenue norms.
Application and transaction fees
Fees below are from building management's published schedule, as of October 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
- 2% of the sale price.
- Rate
- 2% of the purchase price
Source: The Roebling Research Desk's building record
Purchase
8 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing Fee | Paid by Buyer | When With the application | Amount $750 | Refundable Not stated |
| Credit Report FeePer applicantRequired | Paid by Buyer | When With the application | Amount $110 per applicant | Refundable Non-refundable |
| Move-in Fee | Paid by Buyer | When At move-out and move-in | Amount $300 | Refundable Not stated |
| Move Out Fee | Paid by Seller | When At move-out and move-in | Amount $300 | Refundable Not stated |
| Recognition FeeConditionalConditions: If financing | Paid by Buyer | When At closing | Amount $350 | Refundable Not stated |
| Transfer Agent Fee | Paid by Seller | When At closing | Amount $1,000 | Refundable Not stated |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move In Deposit | Paid by Buyer | When At move-out and move-in | Amount $750 | Refundable Not stated |
| Move Out Deposit | Paid by Seller | When At move-out and move-in | Amount $750 | Refundable Not stated |
Sublet
7 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Credit Check FeePer applicant | Paid by Subtenant | When With the application | Amount $110 per Applicant | Refundable Not stated |
| Sublet Application Processing Fee | Paid by Subtenant | When With the application | Amount $500 | Refundable Not stated |
| Move Out Fee | Paid by Shareholder | When At move-out and move-in | Amount $300 | Refundable Not stated |
| Move In Fee | Paid by Subtenant | When At move-out and move-in | Amount $300 | Refundable Not stated |
| Sublet FeeRecurring | Paid by Shareholder | When Upon approval | Amount 20% of the monthly maintenance billed monthly | Refundable Not stated |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move Out Deposit - Refundable | Paid by Shareholder | When At move-out and move-in | Amount $750 | Refundable Refundable |
| Move In Deposit - Refundable | Paid by Subtenant | When At move-out and move-in | Amount $750 | Refundable Refundable |
Ownership transfer
2 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Processing Fee | Paid by Shareholder | When With the application | Amount $500 | Refundable Non-refundable |
| Transfer Agent Fee | Paid by Shareholder | When At closing | Amount $1,000 | Refundable Not stated |
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
- 75% of the purchase priceSource: building management's published schedule, as of October 2026
- Guarantors
- Not permittedSource: building management's published schedule, as of October 2026
- Co-purchasing
- Permitted with conditionsCase by caseSource: building management's published schedule, as of October 2026
- Parent buying for an employed child
- Not permittedSource: building management's published schedule, as of October 2026
- Parent buying for a student child
- Not permittedSource: building management's published schedule, as of October 2026
- Purchase or lease by a corporation
- Not permittedSource: building management's published schedule, as of October 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. Minimum 3 year residency. Minimum one year term, maximum two years. Requests beyond the two years require additional Board approval. Shareholder pays a monthly sublet fee of 20% of the monthly maintenance billed monthly through the term of the sublet.Source: building management's published schedule, as of October 2026
- Pied-à-terre ownership
- Permitted with conditionsCase by caseSource: building management's published schedule, as of October 2026
- Short-term rentals
- Not permittedSource: building management's published schedule, as of October 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
- Dogs and cats
- Permitted with conditionsOnly cats and small dogs are permitted.Source: building management's published schedule, as of October 2026
- In-unit washer/dryer
- Permitted with conditionsCertain models of clothes washers and dryers permitted in unit, with approval from the Board and Managing Agent.Source: building management's published schedule, as of October 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
- $917 per room a monthMedian of 12 recorded sales since October 2023Source: recorded sales, refreshed October 2026
- Maintenance, per square foot
- $2.62 per square foot a monthMedian of 8 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
- Concierge
- YesSource: recent listing records
- Live-in superintendent
- YesSource: The Roebling Team's building profile
- Elevator
- YesSource: NYC Department of City Planning records (PLUTO)
- Amenities noted
- Fitness room, garden, bike storage, storageSource: 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
- $57,908/yr
- Per unit / month range
- $0 – $46
- Modeled exposure split equally across 105 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
- Flip tax of 2% of the sales price is due on the sale
- Sublet policy
- Allowed
- Pied-à-terre
- Allowed
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 |
|---|---|---|---|---|---|
| May 20, 2026 | 6F | 2 BR · 2 BA | $1,795,000 | +0.0% | |
| Oct 16, 2025 | 19C | 2 BR · 2 BA · 1,400 sf | $2,375,000 | $1,696/sf | +5.6% |
| Jan 16, 2025 | 10E | 2 BR · 2.5 BA · 1,773 sf | $1,835,000 | $1,035/sf | +0.0% |
| Nov 25, 2024 | 5D | 1 BR · 1 BA · 948 sf | $1,195,000 | $1,261/sf | +0.0% |
| Sep 18, 2024 | 7D | 1 BR · 1 BA · 950 sf | $925,000 | $974/sf | -7.4% |
| Sep 12, 2024 | 17C | 2 BR · 2 BA | $2,075,000 | +0.0% | |
| Aug 19, 2024 | 17D | 2 BR · 2 BA | $1,995,000 | +0.0% | |
| Jul 15, 2024 | 8BC | 3 BR · 4 BA · 3,000 sf | $4,900,000 | $1,633/sf | -12.1% |
Market read. $/sf is measured on the latest sales with reliable square footage (2025): a median $1,071/sf (floor-adjusted) across 2 sales. The building has traded as recently as 2026. Median listing discount 4.0% 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.
Other recent transfers
| Date | Unit | Price |
|---|---|---|
| Sep 9, 2003 | 18B | $1,200,000 |
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 1-01399-0074). 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.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 605 Park Avenue and nearby.
At the recent median sale of $1.81M (4 transfers in the past 24 months, since November 13, 2024), a buyer putting 25% down would pay about $32,700 to close, or 1.8% of the price.
- Mansion tax: $18,150
- No mortgage recording tax or title insurance on a co-op purchase
- Attorneys, lender, building fees and filings: $14,550
Assumes a resale (the seller pays transfer taxes), a $4,500 attorney fee and a mortgage on the rest.
Keep up with 605 Park Avenue and its market
The Roebling Report, monthly: Manhattan sales data and analysis, including buildings like 605 Park Avenue.
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What to know if you’re buying
The post-war structural reality matters. 605 Park is a 1954 Sylvan Bien post-war white-brick cooperative — materially different from the surrounding 1920s pre-war stock. Expect 8.5–9 foot ceilings (vs. pre-war 10–11), modern building systems including central air, and modernist layouts. Verify any specific apartment's renovation, ceiling height, and exposure during walkthroughs.
Compare prices with the surrounding prewar stock. Use dated matched sales at 720, 740, 770 and 778 Park Avenue, adjusting for actual area, condition, exposure, services, ownership rules and monthly costs before assigning a price difference.
Confirm specific policies directly with management. Financing posture, flip tax structure, sublet specifics, and pied-à-terre allowance should be obtained during the contract review process.
Confirm the board's requirements directly. Confirm the building's current financing, liquidity, ownership and occupancy requirements from its proprietary lease, house rules and application instructions; pied-à-terre use is permitted with conditions.
Renovation is constrained by historic district status. The building's position in the Upper East Side Historic District means LPC permits generally apply to exterior alterations, with eligible staff approvals and ordinary-maintenance exemptions determined by scope.
What to know if you’re selling
The post-war structural advantages and Sylvan Bien pedigree are marketing assets. Listing copy should reference Bien's broader Manhattan post-war portfolio (including 860 Fifth Avenue and substantial UES mid-century work), the 1954 vintage, the southeast-corner Park / 65th positioning, modern building systems, and the post-war ease relative to the surrounding pre-war Park Avenue stock.
Pricing requires apartment-level comparable analysis. Floor altitude, exposure, configuration, and renovation history all matter substantially.
Comparable buildings
If you're considering 605 Park Avenue, also evaluate:
- 200 East 66th Street — Manhattan House, Mayer & Whittlesey with Skidmore, Owings & Merrill, 1947–51; post-war peer by a different architect (similar era; nearby UES)
- 610 Park Avenue — pre-war Lenox Hill peer (different era, comparison reference)
- 625 Park Avenue — Carpenter pre-war Lenox Hill peer
- 660 Park Avenue — pre-war Lenox Hill peer
- 750 Park Avenue — Horace Ginsbern 1951 post-war Lenox Hill cooperative (closest peer in era and architectural language)
- 720 Park Avenue — Candela 1929; pre-war trophy reference north
- 740 Park Avenue — Candela 1929–30; pre-war trophy reference north
More Park Avenue buildings
- 570 Park Avenue — 1916 co-op by Emery Roth
- 571 Park Avenue — 1927 co-op by George F. Pelham
- 580 Park Avenue — 1923 co-op by J.E.R. Carpenter
- 610 Park Avenue (The Mayfair) — 1925 condominium
- 620 Park Avenue (The Palacio) — 1924 co-op by J.E.R. Carpenter
- 625 Park Avenue — 1929 co-op by J.E.R. Carpenter
The neighborhood
For the full corridor — architecture, transit, and pricing across Park Avenue — read The Roebling Team Guide to Park Avenue.
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 605 Park Avenue?
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