- Year built
- 1971
- Type
- Cooperative
- Units
- 259
- Landmark
- No
- Pets
- Pet-friendly
- Flip tax
- 1.75%, paid by the buyer
1725 York Avenue — East River Tower — is one of the most visually distinctive towers in Yorkville. Built in 1971 and converted to a cooperative in 1984, the building is immediately identifiable by its zig-zag pattern of cantilevered corner balconies, which step diagonally up the facade and give the tower an aggressive, almost kinetic profile rarely seen in the era's otherwise plain masonry construction. Where most early-1970s York Avenue towers settled for utilitarian massing, East River Tower made its balcony geometry the architectural statement — and that geometry remains its signature on the Yorkville skyline.
The building sits at Yorkville's far eastern edge, the quiet residential band near Carl Schurz Park, Gracie Mansion, and the East River esplanade, with Asphalt Green's pool and athletic facilities a short walk north. This is the Upper East Side at its most neighborhood-scaled: low traffic, green space at the river, and a stock of post-war co-ops that have long offered Upper East Side living at more accessible pricing than the Park, Fifth, and Madison axis to the west. The 1984 conversion gave the building a genuine co-op governance structure and an established shareholder base.
For buyers, the proposition is specific: real cooperative ownership at post-war scale, a genuinely deep amenity set for the price tier — two tennis courts, a fitness center, and an attended garage — private outdoor space on the balconied lines, a pet-friendly policy, and a tranquil riverside Yorkville location.
Architecture and unit composition
The defining feature is the balcony program: cantilevered corner balconies arranged in a staggered, zig-zag rhythm that animates the facade and gives many apartments genuine private outdoor space — an amenity that commands a premium in any Manhattan co-op and is comparatively scarce in the Yorkville post-war stock. Corner lines on some floors carry wraparound balconies. Beyond the balconies, the building is an efficient early-1970s masonry high-rise: vertical massing, practical floor plates, and apartment volume across 33 stories.
The roughly 259 apartments span studios and one-bedrooms through larger two- and three-bedroom configurations. Post-war interior signatures run throughout: 8-to-9-foot ceilings, large operable windows, practical layouts (many renovated since conversion), and ample closets. Upper-floor and eastern-facing lines capture open East River, bridge, and Carl Schurz Park exposures; the balcony lines compound that view value with usable terrace space. Balcony presence varies by line, and the apartments with private outdoor space carry a clear premium in the building.
Building operations
East River Tower operates as a full-service post-war cooperative with a full-time doorman, two tennis courts, a fitness center, a 24-hour attended garage with a circular driveway and direct building access, a children's playroom, bike storage, and on-site laundry. The building is pet-friendly. The roughly 259-unit scale supports genuine full-time staffing and the operating budget a tower of this size requires.
Because the building converted to cooperative ownership in 1984, the substantive diligence items are the co-op's financials: reserve adequacy, recent and planned capital work — including balcony and facade maintenance, which is structurally important given the cantilevered balcony program, and Local Law 97 compliance planning common to towers of this vintage — and any current assessments. The building applies a 1.75% flip tax, paid by the buyer at closing.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $0 (under cap)
- Per unit / month range
- —
Facade safety — Local Law 11
Safe to live in today — but the last inspection flagged repairs that are due on a deadline, so facade work and its cost are coming. Whether that’s a real concern depends on the scope, the timing, and how the building plans to pay for it — reserves or an assessment — which is exactly what we’d dig into for you.
QEWI = Qualified Exterior Wall Inspector — the licensed engineer the city requires to sign the report (the independent expert, not the managing agent). Source: NYC DOB facade filings (FISP) · The Roebling Research Library.
See the full facade history →Recent sales
Sales context at East River Tower:
- Turnover is steady given the roughly 259-unit scale — typically a high-single-digit to low-double-digit number of closings per year across configurations.
- Pricing spans a broad range by unit size, floor, exposure, and the presence of a balcony: studios and one-bedrooms at the building's accessible entry tier, larger two- and three-bedrooms at meaningful premiums, with balconied and high-floor river-view lines commanding the top prices in the building.
- Per-square-foot pricing typically sits well below the pre-war Upper East Side co-op tiers, consistent with the post-war vintage and far-eastern Yorkville location.
Specific closed prices vary by apartment; the building's live sales record is the right reference for current valuation and is maintained on the building's auto-generated sales page.
What to know if you’re buying
This is a genuine post-war cooperative. Expect a board package, financial review, and co-op interview. Strong financials and primary-residence intent help.
Budget for the flip tax. The building applies a 1.75% flip tax paid by the buyer — factor it into your closing costs.
The amenity set is unusually deep for the tier. Two tennis courts, a fitness center, an attended garage, a playroom, and a pet-friendly policy come with the building — rare in this price band.
Balconies are the building's edge. Private outdoor space is the building's scarcest feature, present on the corner and staggered lines that carry the zig-zag program; the balconied high-floor river lines command the building's top prices.
Scrutinize the building's capital posture. The cantilevered balcony program and facade demand ongoing maintenance; review reserves, recent and planned capital work, and any assessments with your attorney.
The riverside Yorkville setting is the lifestyle. Carl Schurz Park, the East River esplanade, Asphalt Green, and a quiet residential pace are the location's draw.
What to know if you’re selling
Lead with the balconies, the views, and the amenities. Private outdoor space, open river/park exposures, and the tennis-courts-and-garage package are the building's marketing assets; high-floor balconied lines should be positioned accordingly.
Set expectations on the buyer-paid flip tax. The 1.75% flip tax is the buyer's cost here — useful to flag early in negotiation.
Apartment-level positioning drives price. Floor, exposure, balcony presence, layout, and renovation quality move value far more than building-wide averages.
Closing timelines are co-op standard. Plan for roughly 6–10 weeks from contract signing to closing, plus board package preparation and interview.
Comparable buildings
If you're considering East River Tower, also evaluate:
- 60 East End Avenue — eastern Upper East Side full-service co-op
- Ruppert Yorkville Towers — large Yorkville residential complex
- 1628 Second Avenue — Yorkville condominium
- 425 East 86th Street — Yorkville full-service building
The Roebling Team at East River Tower
The Roebling Team at Compass works Yorkville and the broader Upper East Side as a core practice area, including the post-war co-op tier that most building coverage treats only superficially. We publish this profile because co-op buyers and sellers deserve building-specific intelligence — board policy, transactional mechanics, and pricing at the apartment level — not generic neighborhood commentary.
If you're considering a purchase or sale at East River Tower, a 30-minute consultation is the right starting point.
Get the full picture on this building.
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