1056 Lexington Avenue (123 East 75th Street)
1056 Lexington Avenue, New York, NY 10021
Lenox Hill, Upper East Side
BBL 1014100014 · BIN 1043142
- Year built
- 1961
- Type
- Cooperative
- Units
- 104
- Pets
- Permitted with approval (no large dogs; verify current policy at offer stage)
- Subletting
- Permitted after two years of ownership (approximately two of every five years thereafter)
- Financing
- Up to 70% permitted (30% down)
- Flip tax
- None
1056 Lexington Avenue (123 East 75th Street) sales history: 102 recorded transfers
Every recorded sale at this building, 2003–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- Studio median
- $520K
- Recent range
- $450K – $4.3M
- Listing discount
- 3.2%
- Recorded transfers
- 102
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 1056 Lexington Avenue (123 East 75th Street) 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.
1056 Lexington Avenue — known in the resale market primarily by its residential address, 123 East 75th Street — is a notably flexible Lenox Hill cooperative on the corner of Lexington and 75th. Built in the early 1960s and converted to cooperative ownership in 1980, it stands out among the neighborhood's older co-ops for a set of progressive policies: no flip tax, in-unit washer/dryers permitted, an on-site fitness center, and a workable sublet policy. In a category where older Upper East Side cooperatives are often rigid, 1056 Lexington reads as buyer-friendly.
For buyers, that flexibility is the building's defining feature. The absence of a flip tax is unusual and meaningful — it removes a transfer cost that most Upper East Side co-ops impose. In-unit laundry permission is comparatively rare in a postwar co-op of this vintage. And the building's strong operating record — a clean compliance history in recent years — signals well-run governance. All of that sits at a Lenox Hill corner steps from the 6 train, from Lexington and Madison Avenue retail, and from the neighborhood's schools and medical corridor, at a price point below the prime Upper East Side avenues.
The apartment stock skews toward smaller postwar layouts, which keeps entry pricing accessible. Like most Upper East Side cooperatives, the building prices in rooms rather than square feet.
Building operations
1056 Lexington Avenue operates as a full-service cooperative with a 24-hour doorman, a live-in resident manager, an on-site fitness center (available for a separate annual fee), a laundry room, storage (with a fee and a waitlist), and a bike room. A parking garage sits adjacent to the building, though it is not building-owned. In-unit washer/dryers are permitted with board approval.
As a cooperative, the building reviews prospective purchasers through a board application and interview process. The building's financial policies are relatively flexible: there is no flip tax, financing is permitted up to 70% (30% down), subletting is permitted after two years of ownership (approximately two of every five years thereafter), and pied-à-terre use is permitted with board approval. Pets are permitted with approval, subject to a no-large-dogs policy. The building maintains a strong compliance record. Specific current policies should be confirmed against building materials and the managing agent during due diligence. Our Co-op vs Condo guide covers the ownership-structure framing.
Architecture and building character
The building is an early-1960s postwar mid-rise — a red-brick facade with a polished black granite entrance and a white marble surround, bay windows, and a few upper-floor terraces. It occupies the corner of Lexington and 75th, with the residential entrance on 75th Street. The lobby, hallways, and elevators have been renovated. The 16-story height gives upper floors improved light, and the bay windows add exposure variety to the layouts.
The apartment mix skews toward smaller postwar configurations — studios and one-bedrooms alongside larger units — priced by room. In-unit washer/dryers are permitted with board approval, which is a genuine convenience for the vintage.
Local Law 97
- 2024–2029 annual penalty
- $10,816/yr
- 2030–2034 annual penalty
- $89,729/yr
- Per unit / month range
- $9 – $72
- Modeled exposure split equally across 104 units (the city tax-lot count). Not an assessed amount; co-op shareholders are typically charged by share allocation.
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City record last verified September 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. Facade inspections run on a fixed five-year cycle; future inspection, repair, and any assessment decisions remain building-specific.
How to read this, and where it comes from
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. City record last verified September 2026.
Recent sales
1056 Lexington trades at Lenox Hill's postwar cooperative tier, priced by room, with recent trading below the prime Upper East Side avenue cooperatives — the smaller-unit stock and the postwar vintage keep pricing accessible. The building's flexible policies — no flip tax, permitted in-unit laundry, a workable sublet rule, an on-site gym — support demand and liquidity relative to stricter neighborhood co-ops. As with any cooperative, pricing should be read at the apartment level; room count, floor, exposure, and condition drive the variation.
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 |
|---|---|---|---|---|---|
| Jul 22, 2026 | 5C | 1 BA · 550 sf | $525,000 | $955/sf | -7.1% |
| Mar 5, 2026 | 7D | 1 BA · 600 sf | $515,000 | $858/sf | -1.9% |
| Jan 15, 2026 | 6B | 2 BR · 1 BA | $900,000 | -2.7% | |
| Nov 19, 2025 | 3D | 1 BA · 550 sf | $450,000 | $818/sf | -6.1% |
| Sep 9, 2025 | 7F | 1 BA | $576,250 | -11.3% | |
| Aug 1, 2025 | 7C | 1 BA | $530,000 | -3.6% | |
| Apr 16, 2025 | 9BC | 2 BR · 2 BA | $1,350,000 | +0.0% | |
| Mar 14, 2025 | 9D | 1 BA · 481 sf | $450,000 | $936/sf | -9.1% |
Market read. Most recent trades (2026) cleared a median $916/sf (floor-adjusted) across 2 sales. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 2.3% 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 1-01410-0014). 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.
At the recent median sale of $530K (9 transfers since 2024), a buyer putting 25% down would pay about $10,538 to close, or 2.0% of the price.
- Mansion tax: $0
- No mortgage recording tax or title insurance on a co-op purchase
- Attorneys, lender, building fees and filings: $10,538
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 flexible cooperative — priced by room, board-approved. Expect the cooperative purchase framework: a board application, a financial review, and an interview. But the building's policies are unusually buyer-friendly for the category — no flip tax, in-unit laundry permitted, a workable sublet rule.
The no-flip-tax policy is a genuine advantage. Most Upper East Side cooperatives impose a transfer tax at sale; 1056 Lexington does not, which improves seller economics and can factor into buyer math.
In-unit laundry is permitted. This is comparatively rare in a postwar co-op of this vintage and a real convenience.
Financing is capped at 70%. Plan for a 30% down payment. Confirm current financing thresholds during due diligence.
Model the maintenance and the underlying mortgage. As a cooperative, the monthly maintenance covers the building's operating costs, property taxes, and any underlying mortgage. Review the building's financials and reserve position.
What to know if you’re selling
Foreground the flexible policies. No flip tax, permitted in-unit laundry, an on-site gym, and a workable sublet rule are the building's principal selling points — they distinguish it from stricter Lenox Hill co-ops and widen the buyer pool.
Pricing requires apartment-level comparable analysis. Recent comparables on the specific line, room count, floor, and exposure should anchor the approach.
Board approvability shapes the buyer pool. Prepare buyers for the cooperative application, and price and position to attract financially qualified applicants who will clear the board.
Closing timelines run to the cooperative calendar. Plan for a board application and interview cycle in addition to standard closing timelines.
Comparable buildings
If you're considering 1056 Lexington Avenue, also evaluate:
- 1068 Lexington Avenue — nearby postwar Lenox Hill cooperative on Lexington
- 1004 Lexington Avenue — nearby Lexington Avenue building
- 1091 Lexington Avenue — nearby Lexington Avenue cooperative
- 130 East 75th Street — adjacent 75th Street building
- 120 East 75th Street — nearby 75th Street inventory
- 103 East 75th Street — nearby 75th Street building
More Upper East Side buildings
- 1010 Third Avenue (166 East 61st Street) — 1959 co-op by Horace Ginsbern & Associates
- 1040 Madison Avenue — 1925 co-op
- The Benson (1045 Madison Avenue) — 2022 condominium by Peter Pennoyer Architects
- 1059 Third Avenue (The Leyton) — 2021 condominium
- 1065 Lexington Avenue — 1925 condop by Rouse & Goldstone
- 1068 Lexington Avenue (136 East 76th Street) — 1961 co-op
The neighborhood
For the full corridor — architecture, transit, and pricing across Upper East Side — read The Roebling Team Guide to Upper East Side.
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.
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