1056 Lexington Avenue (123 East 75th Street)
1056 Lexington Avenue, New York, NY 10021
- 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
Every recorded sale at this building, 2004–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 1BR median
- $723K
- Recent range
- $515K – $3.7M
- Listing discount
- 2.4%
- Recorded transfers
- 55
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.
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, curated by The Roebling Team research desk. Apartment-level facts are independently verified before publishing; sale prices reflect the recorded transfer amount at the NYC Department of Finance.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Mar 5, 2026 | 7D | 5 BR · 1 BA · 600 sf | $515,000 | $858/sf | -1.9% |
| Jan 15, 2026 | 6B | 2 BR · 1 BA | $900,000 | -2.7% | |
| Sep 9, 2025 | 7F | 5 BR · 1 BA | $576,250 | -11.3% | |
| Aug 1, 2025 | 7C | 5 BR · 1 BA | $530,000 | -3.6% | |
| Nov 13, 2024 | 10B | 1 BR · 1 BA | $755,000 | +0.7% | |
| Aug 15, 2024 | 12A | 5 BR · 1 BA · 500 sf | $520,000 | $1,040/sf | -5.5% |
| May 21, 2024 | 2/3AB | 4 BR · 4.5 BA · 3,200 sf | $4,275,000 | $1,336/sf | -13.6% |
| Oct 11, 2023 | 11DEF | 4 BR · 3.5 BA | $3,675,000 | -3.2% |
Market read. Most recent trades (2026) cleared a median $972/sf across 1 sale. Median listing discount 3.2% 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.
Other recent transfers
| Date | Unit | Price |
|---|---|---|
| Apr 16, 2025 | 9BC | $1,350,000 |
| Mar 19, 2019 | 9H | $620,000 |
| Dec 11, 2017 | 8E | $706,500 |
| Mar 7, 2016 | 4B | $750,500 |
| Jun 17, 2013 | 11DEF | $3,380,000 |
| Jan 6, 2009 | 5H | $635,000 |
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 1-01410-0014) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. 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 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
The Roebling Team at 1056 Lexington Avenue (123 East 75th Street)
The Roebling Team at Compass specializes in the Upper East Side, including Lenox Hill's postwar cooperative inventory, and the broader Park-facing Manhattan market. We publish this building profile because cooperative buyers and sellers deserve building-specific intelligence — architecture, operational reality, transactional mechanics, and apartment-level pricing — not generic market commentary.
If you're considering a purchase or sale at 1056 Lexington Avenue, a 30-minute consultation is the right starting point. We'll bring the full context this page provides plus the transactional specifics your situation requires.
Corey Cohen · The Roebling Team at Compass 646.939.7375 · c.cohen@compass.com
The neighborhood
For the full corridor — architecture, schools, transit, and pricing across Upper East Side — read The Roebling Team Guide to Upper East Side.
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