505 West End Avenue
505 West End Avenue, New York, NY 10024
BBL 1012460029 · BIN 1033858
- Year built
- 1921
- Type
- Cooperative
- Landmark status
- Not an individual landmark; in the Riverside-West End Historic District Extension I
- NYC Landmarks Preservation Commission records, updated February 2026
- Subletting by shareholders
- Permitted with conditions
- Pets
- Pets permitted with conditions; species not stated
- Maximum financing
- 80% 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.
- 3BR median, 2024–2026
- $2.6M
- 2 qualifying sales
- Recent range
- $2M – $4.8M
- Listing discount
- 1.5%
- Recorded transfers
- 45
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 505 West End 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.
505 West End Avenue is a handsome early-1920s cooperative designed by Gaetano Ajello, the architect who, more than almost anyone, gave West End Avenue and Broadway their Italian Renaissance character in the 1910s and 1920s. Completed in 1921, the building is a confident palazzo with a two-story rusticated limestone base, decorative balconies, and quoined corners — the polished masonry vocabulary that defines the best of upper-Broadway-era West Side apartment houses.
The proposition is pre-war substance at West End value. The building delivers the large, well-zoned apartments buyers come to West End Avenue to find, in a full-service, pet-friendly cooperative on a prime block near both Riverside and Central Parks. The Ajello pedigree and the limestone-base architecture give it real curb presence; the room counts and light give it livability.
For buyers, it is space, character, and a serious West End address. For sellers, the Ajello design, the facade, the roof deck, and the location are the marketable distinctions that set a home here apart from newer and smaller inventory.
Architecture and unit composition
Ajello's design is among his characteristic strengths: a richly articulated Italian Renaissance facade anchored by a rusticated limestone base, with decorative balconies and quoins that lend the building a palazzo's gravity. It is one of the more architecturally distinguished buildings on its stretch of West End, and the masonry has aged with the dignity that defines the avenue.
Inside, the 68 residences are pre-war in plan and proportion — entry foyers, separate dining rooms in the larger lines, high ceilings, and hardwood floors, in layouts that run from comfortable smaller homes to spacious family apartments. The thick masonry construction makes for quiet, well-insulated interiors. As across the pre-war stock, the most sought-after homes are the larger, light-filled lines that have been thoughtfully updated while keeping their original character.
Building operations
505 West End is a full-service cooperative with a full-time doorman, a live-in superintendent, and a porter — the staffing a serious West End building requires. Amenities are practical and well-used: a common roof deck with open views, a central laundry room, a bike room, and storage. The building is pet-friendly, with dogs and cats both permitted — a real draw on the family-oriented Upper West Side.
The cooperative is a long-running pre-war co-op; review the current budget, audited statements, debt and any assessments. Prospective purchasers should expect a standard board package and personal interview; sublet policy, financing limits, and any flip tax or transfer fee are set by the board and confirmed through the cooperative's documents during the application process.
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
- 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
8 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application processing fee | Paid by Buyer | When With the application | Amount $600 | Refundable Non-refundable |
| Credit Check FeePer applicantRequired | Paid by Buyer | When With the application | Amount $125 per applicant | Refundable Non-refundable |
| Move In Fee | Paid by Buyer | When With the application | Amount $500 | Refundable Non-refundable |
| Move Out Fee | Paid by Seller | When With the application | Amount $500 | Refundable Non-refundable |
| If financing, Recognition Agreement FeeConditional | Paid by Buyer | When At closing | Amount $300 | Refundable Non-refundable |
| Closing Administrative Fee | Paid by Seller | When At closing | Amount $600 | Refundable Non-refundable |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move In Deposit | Paid by Buyer | When With the application | Amount $1,000 | Refundable Refundable |
| Move Out Deposit | Paid by Seller | When At closing | Amount $1,000 | Refundable Refundable |
Sublet
7 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| credit check feePer applicant | Paid by Buyer | When With the application | Amount $125.00 per person | Refundable Non-refundable |
| Move Out Fee | Paid by Shareholder | When With the application | Amount $500 | Refundable Non-refundable |
| Sublet Fee | Paid by Shareholder | When With the application | Amount One (1) month's maintenance | Refundable Non-refundable |
| Application Processing Fee | Paid by Subtenant | When With the application | Amount $600 | Refundable Non-refundable |
| Move In Fee | Paid by Subtenant | When With the application | Amount $500 | Refundable Non-refundable |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move Out Deposit | Paid by Shareholder | When With the application | Amount $1,000 | Refundable Refundable |
| Move in Deposit | Paid by Subtenant | When With the application | Amount $1,000 | Refundable 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
- 80% of the purchase priceSource: 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 conditionsAll requests for sublets are subject to board approval The minimum sublease term permitted is six (6) months and the maximum is twelve (12) months. (see sublet package for further details)Source: building management's published schedule, as of September 2026
- Short-term rentals
- Not permittedSource: building management's published schedule, as of September 2026
- Pied-à-terre ownership
- Not verified
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 statedPlease refer to the House RulesSource: building management's published schedule, as of September 2026
- In-unit washer/dryer
- Not verified
Considering an apartment here? Send Corey the listing to confirm the pet and washer/dryer rules for that apartment.
Building staffing and amenities
- Doorman
- Full-time doormanSource: 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
- Roof deck, bike 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
- $36,522/yr
- Per unit / month range
- $0 – $45
- Modeled exposure split equally across 68 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 FISP filing classified the facade as Safe — no repairs were required at that inspection. A filed Safe grade is not a guarantee of current condition: owners still maintain the facade and, where required, observe parapets each year. Future inspection timing (Local Law 49 of 2025 changed the cycle framework from October 1, 2026), repair and any assessment decisions remain building-specific.
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).
Source: NYC DOB facade filings (FISP) · The Roebling Research Library. City data last refreshed October 2026.
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 |
|---|---|---|---|---|---|
| Aug 17, 2026 | 10C | 3 BR · 2.5 BA | $2,846,008 | +1.8% | |
| Aug 17, 2026 | MAIS | 3 BR · 2 BA | $2,150,000 | +0.0% | |
| Mar 27, 2026 | 2B | 4 BR · 3 BA | $2,200,000 | -3.3% | |
| Jul 10, 2024 | 6C | 3 BR · 1.5 BA | $2,300,000 | -6.1% | |
| Aug 3, 2023 | 10AB | 5 BR · 4 BA · 4,000 sf | $4,800,000 | $1,200/sf | -1.0% |
| Jun 22, 2023 | 4C | 2 BR · 2 BA | $2,030,000 | -1.5% | |
| Feb 10, 2022 | 14D | 2 BR · 2 BA | $1,900,000 | -2.6% | |
| Nov 18, 2021 | 5B | 3 BR · 2 BA | $2,050,000 | -4.7% |
Market read. $/sf is measured on the latest sales with reliable square footage (2023): a median $1,200/sf (recorded) across 1 sale. The building has traded as recently as 2026. Median listing discount 1.2% 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 1-01246-0029). 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 505 West End Avenue and nearby.
At the recent median sale of $2.2M (3 transfers in the past 24 months, since October 31, 2024), a buyer putting 25% down would pay about $42,050 to close, or 1.9% of the price.
- Mansion tax: $27,500
- 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.
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What to know if you’re buying
This is a straightforward pre-war co-op purchase with a strong amenity set and a pet-friendly posture. Plan for a board package and interview, and use diligence to focus on the apartment — room count, light, condition of the kitchen and baths, and any prior renovation — alongside the cooperative's reserves, recent capital projects, and maintenance trend.
The location is a genuine selling point: a prime West End block with Riverside Park two avenues west and Central Park within reach to the east, the 86th and 79th Street subway stations nearby, and the everyday retail of Broadway a block away. Buyers who want pre-war space, architectural character, and a pet-friendly building at upper West Side value are the natural audience. We help buyers assess the home, the finances, and the right offer.
What to know if you’re selling
Lead with what 505 offers that surrounding inventory does not: a Gaetano Ajello-designed Italian Renaissance cooperative with a rusticated limestone base, large pre-war layouts, a roof deck, and a pet-friendly, full-service operation. Those are concrete, marketable differentiators.
Price to the building's own resale history and to comparable upper West End Avenue pre-war cooperatives, with condition and light as the decisive variables. A renovated, larger-line apartment should be positioned at the top of the building's range. We advise sellers on staging, timing, pricing, and buyer qualification so the home reaches the audience that values pre-war space, architecture, and a serious West End address.
Comparable buildings
If you're considering 505 West End Avenue, also evaluate these nearby West End Avenue cooperatives:
- 525 West End Avenue — pre-war cooperative a block north
- 535 West End Avenue — established West End building nearby
- 480 West End Avenue — pre-war full-service cooperative
- 470 West End Avenue — West End Avenue cooperative
- 450 West End Avenue — pre-war cooperative on the corridor
More West End Avenue buildings
- 480 West End Avenue — 1913 co-op by Neville & Bagge
- 498 West End Avenue — 1911 condominium by Neville & Bagge
- 500 West End Avenue — 1915 condominium by Schwartz & Gross
- 511 West End Avenue — 1926 co-op
- 514 West End Avenue — 1923 co-op by Gaetano Ajello
- 522 West End Avenue — 1924 co-op by Rosario Candela
The neighborhood
For the full corridor — architecture, transit, and pricing across West End Avenue — read The Roebling Team Guide to West End 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 505 West End 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