The Strathmore (400 East 84th Street)
400 East 84th Street, New York, NY 10028
BBL 1015637501 · BIN 1085139
- Year built
- 1994
- Type
- Condop
- Units
- 180
- Floors
- 44
- Landmark
- No
- Pets
- Pets permitted
- Pied-à-terre
- Allowed
- Financing
- Up to approximately 80 percent financing (condop / co-op model — a lower down payment than a traditional co-op); confirm current terms at offer stage
Every recorded sale at this building, 2026–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf (floor-adjusted)
- $1,625
- Listing discount
- -2.3%
- Recorded sales
- 85
- On record
- 2026–2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at The Strathmore 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.
The Strathmore is a roughly 44-story Yorkville tower at First Avenue and 84th Street, built in 1994 to a Costas Kondylis design for The Related Companies, and in the current cycle undergoing a rental-to-condop conversion with an offering plan on file and sales underway. For buyers, the essential fact is the ownership structure: the building is being sold as a condop — a cooperative in which a co-op corporation owns the residential condominium unit, so shares are sold and financed on a co-op model, but the house rules carry condominium-style flexibility. That structure is the building's value proposition, because it pairs a lower down payment and a per-room pricing convention with permissive pied-à-terre, sublet, and financing rules.
The building's amenity package is unusually deep for the corridor. Beyond the standard full-service baseline — concierge, doorman, live-in superintendent, fitness center, landscaped garden, attended parking, children's playroom, and bike room — The Strathmore carries a swimming pool and a squash court, the latter a genuine rarity in Yorkville residential. The condop repositioning included an interiors program by Ingrao Inc., giving the converting inventory a new-development finish register.
The Strathmore also carries a piece of Upper East Side development history. Its 1994 construction was a flashpoint in the neighborhood's downzoning fight: Related moved to establish the foundation ahead of a zoning change that would have curtailed the plaza bonus enabling the tower's height, community litigation followed and failed, and the tall, slender tower was completed — one of the more prominent products of that era of the corridor's building boom.
Building operations
The Strathmore operates as a full-service building with concierge and doorman coverage, a live-in superintendent, and one of the deeper amenity packages in Yorkville: the fitness center, the swimming pool, the squash court, the landscaped garden, the attended parking garage, the children's playroom, and the bike room. The building is smoke-free.
Because the building is mid-conversion, the operating and financial picture is in transition. Buyers should treat the offering plan as the source of truth for the building's structure, the affordable-rental split, the maintenance and reserve position, and any sponsor obligations, and should review it carefully with a cooperative attorney during due diligence.
Structure and unit composition
Because The Strathmore is a condop, apartments transact as cooperative shares and are priced by the room rather than strictly by the square foot, even as the building offers condominium-style flexibility in its house rules. The 180 residences run from one-bedrooms through larger three- and four-bedroom layouts, with the converting inventory carrying the Ingrao-led finish program. A share of the building remains in an affordable-rental component during the conversion, which is standard for a repositioning of this kind; buyers should confirm the current split and the specific unit's status with the sponsor.
The Kondylis design places corner bay windows on many lines, producing open exposures and, on the upper floors, meaningful skyline and East River sight lines toward Carl Schurz Park and the river.
Policy framework
Ownership structure: Condop — shares in a co-op corporation that owns the residential condominium unit. Transactions and financing follow a cooperative model; house rules carry condominium-style flexibility.
Financing: Up to approximately 80 percent financing (a lower down payment than a traditional co-op). Confirm current terms at offer stage.
Pied-à-terre: Permitted — a condop feature that distinguishes the building from stricter corridor co-ops.
Subletting: Permitted under a flexible, board-governed policy — a condop feature.
Flip tax / transfer fee: Governed by the offering plan; confirm current terms with the sponsor and managing agent.
Board approval: Condop buildings typically run a streamlined approval relative to a traditional co-op; confirm the current process with the managing agent and offering plan.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $166,010/yr
- Per unit / month range
- $0 – $79
- Modeled exposure split equally across 176 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 filing classified the facade as SWARMP — Safe With A Repair and Maintenance Program: the engineer 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 — the licensed engineer the city requires to sign 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 record last verified September 2026.
Recent sales
The Strathmore's current sales cycle is a sponsor conversion, so pricing reflects launch pricing on the converting inventory rather than a long secondary-market history. Launch pricing has run broadly from the high-$900,000s for one-bedroom inventory into the low-$2 million range for two-bedrooms and higher for three- and four-bedroom homes, with individual unit pricing set against the specific layout, floor, and exposure. Because the building is priced on a cooperative (per-room) convention, comparable analysis should reference the room count and layout rather than a strict per-square-foot figure.
As with any sponsor conversion, the offering plan governs — pricing, terms, the affordable-rental split, and any sponsor obligations should all be confirmed against it.
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 |
|---|---|---|---|---|---|
| Sep 28, 2026 | 31C | 4 BR · 3.5 BA · 2,429 sf | $4,855,000 | $1,999/sf | +0.0% |
| Sep 24, 2026 | 16E | 2 BR · 2 BA · 1,174 sf | $1,676,750 | $1,428/sf | -5.0% |
| Sep 15, 2026 | 25B | 3 BR · 3 BA · 1,624 sf | $2,995,000 | $1,844/sf | +0.0% |
| Sep 10, 2026 | 18D | 1 BR · 1 BA · 749 sf | $1,283,402 | $1,713/sf | +14.6% |
| Sep 9, 2026 | 8D | 1 BR · 1 BA · 654 sf | $967,388 | $1,479/sf | +2.4% |
| Sep 3, 2026 | 30B | 3 BR · 3 BA · 1,625 sf | $3,250,833 | $2,001/sf | +3.2% |
| Sep 2, 2026 | 18C | 2 BR · 2 BA · 1,156 sf | $1,821,903 | $1,576/sf | +2.1% |
| Sep 1, 2026 | 33A | 2 BR · 2 BA · 1,331 sf | $2,398,538 | $1,802/sf | +3.2% |
Market read. Most recent trades (2026) cleared a median $1,625/sf (floor-adjusted) across 77 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% over ask.
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 1-01563-7501). 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.
Closed rents at The Strathmore, last 36 months
| Size | Leases | Median / month |
|---|---|---|
| 2 bedroom | 2 | $14,750 |
3 closed leases, October 2023 to September 2026. Most recent lease September 2026. Based on few leases. Sizes with fewer than 2 leases are not shown. Compiled by The Roebling Team at Compass from closed leases.
At the recent median sale of $1.9M (77 transfers since 2024), a buyer putting 25% down would pay about $33,550 to close, or 1.8% of the price.
- Mansion tax: $19,000
- 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 The Strathmore and its market
The Roebling Report, monthly: Manhattan sales data and analysis, including buildings like The Strathmore. Unsubscribe anytime.
We’ll use your email for The Roebling Report and note your interest in this building. See our privacy policy.
What to know if you’re buying
The condop structure is the point. Lower down payment, per-room pricing, and condominium-flexible house rules — pied-à-terre and sublet use permitted — together produce a more accessible and more flexible ownership than a traditional corridor co-op.
The amenity package is a differentiator. The pool and squash court are rare in Yorkville; weigh them against the carrying cost.
Read the offering plan carefully. The building is mid-conversion. The plan is the source of truth for structure, the affordable-rental split, financials, and sponsor obligations. Review it with a cooperative attorney.
Confirm the specific unit's status. During a conversion, unit availability and status change; confirm current terms with the sponsor at offer stage.
What to know if you’re selling
Once the conversion seasons, lead with the structure and amenities. The condop flexibility and the pool-and-squash amenity set are the building's most marketable features.
Price on the cooperative convention. Reference room count and layout, and the building's converting-inventory comparables.
Comparable buildings
If you're considering The Strathmore, also evaluate:
- 400 East 85th Street — nearby Yorkville full-service cooperative with an accessible policy framework
- 171 East 84th Street (Evans Tower) — nearby condominium with a retractable-dome rooftop pool
- 360 East 88th Street (Leighton House) — Polshek-designed Yorkville condominium
- 200 East 89th Street (The Monarch) — Yorkville condominium with an indoor atrium pool
- 401 East 89th Street (Gracie Towne House) — flexible far-Yorkville condop near Carl Schurz Park
- 1175 York Avenue (York River House) — Lenox Hill condop (flexible-ownership comparison)
More Upper East Side buildings
- Emery Towers, 400 East 77th Street — 1964 co-op
- The Kingsley (400 East 70th Street) — 1984 condominium by Stephen B. Jacobs Group
- The Laurel (400 East 67th Street) — 2008 condominium by Costas Kondylis & Partners
- 401 East 84th Street (The Dunhill) — new-construction condominium by Liebman & Liebman
- Bridge Tower Place (401 East 60th Street) — 2000 condominium by Costas Kondylis & Partners
- Gracie Towne House (401 East 89th Street) — 1960 condop by Philip Birnbaum & Associates
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.
Considering a move at The Strathmore?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.