238 East 84th Street
238 East 84th Street, New York, NY 10028
BBL 1015290031 · BIN 1048712
- Year built
- 1962
- Type
- Cooperative
- Units
- 22
- Floors
- 5
- Landmark
- No
- Pets
- Cats permitted; dogs generally not permitted — confirm at offer stage
- Subletting
- Limited; permitted on a restricted basis subject to board policy — confirm at offer stage
Every recorded sale at this building, 2004–2024
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- Studio median
- $326K
- Recent range
- $320K – $332K
- Listing discount
- 2.2%
- Recorded transfers
- 36
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at Cornasesk House 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.
238 East 84th Street — Cornasesk House — is a small, self-managed cooperative in the heart of Yorkville, on East 84th Street between Second and Third Avenues. It is a boutique building of modest, efficient homes, run lean by the shareholders themselves, with a maintenance structure that folds in heat, hot water, and unlimited laundry. For the buyer who wants an entry point into the Upper East Side at a genuinely accessible price — a first apartment, a pied-à-terre, or a low-carry city foothold — the building is a clean, sensible proposition.
The appeal is straightforward: a well-run studio-scale co-op in a prime Yorkville location, close to the Q train at 86th Street and the 4/5/6 at 86th and Lexington, with the retail, restaurants, and everyday convenience of the neighborhood at the door.
Building operations
The cooperative is run self-managed and characteristically lean: an elevator, a shared laundry room with unlimited use included in maintenance, and heat and hot water included. There is no doorman — appropriate and cost-efficient for a boutique studio co-op of this scale, and a meaningful factor in keeping maintenance contained.
As a cooperative, ownership is by shares rather than deed: purchases require board approval and a board interview, financing is capped at a board-set percentage, and pied-à-terre and co-purchase arrangements are evaluated case by case. Cats are permitted; dogs generally are not. Subletting is limited and restricted by board policy. The exact financing maximum, any flip tax, and current sublet and pet rules vary by board policy and should be confirmed at offer stage.
Architecture and residences
Cornasesk House is a five-story post-war brick elevator building, in the practical mid-century Yorkville idiom. The residences run predominantly to studios, with some combined layouts that produce larger one-bedroom-scale homes. The scale is efficient and the plans are straightforward — well suited to buyers who prize location and carrying cost over square footage.
The 22-residence count keeps the building intimate, and the self-managed structure keeps the operation tight and the maintenance charges contained.
The Yorkville block
Yorkville is the Upper East Side's most texture-rich residential pocket — a neighborhood with deep German, Hungarian, and Central European roots, now a dense, walkable mix of pre-war and post-war buildings, longtime shops, and a steady stream of new restaurants. East 84th Street between Second and Third is a classic Yorkville block: residential, convenient, and a short walk to the Q train, Carl Schurz Park, and the East River promenade. To buy here is to buy into a working, lived-in Upper East Side rather than a trophy corridor.
Local Law 97
This building is below the 25,000 sq ft threshold at which LL97 emissions caps apply. No regulatory capital pressure from this law specifically, current or 2030.
See full Local Law 97 analysis →Recent sales
Co-op pricing is read on a per-room basis, and Cornasesk House trades as a boutique studio-scale cooperative — modest units, contained carrying costs, and one of the more accessible entry points to the Upper East Side. With only 22 residences, resale volume is thin: a small number of closings in an active year, running mostly through studios and the occasional combined unit. Demand here is driven by the Yorkville location, the low carrying costs, and the value a self-managed co-op structure offers relative to condominium alternatives. When underwriting a purchase or a list price, capture the room count, the floor, the exposure, and the renovation condition rather than relying on a neighborhood average.
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 |
|---|---|---|---|---|---|
| Dec 26, 2024 | 4B | 1 BA | $332,462 | -2.2% | |
| Oct 22, 2024 | 2B | 1 BA | $320,000 | -1.5% | |
| Jan 17, 2024 | GA | 1 BA · 300 sf | $260,000 | $867/sf | -3.3% |
| Dec 1, 2022 | 5A | 1 BA | $360,000 | -8.9% | |
| Jan 5, 2022 | 5C | 1 BR · 1 BA | $415,000 | -2.1% | |
| Dec 2, 2021 | 2C | 1 BA · 340 sf | $340,000 | $1,000/sf | +1.5% |
| Jun 29, 2018 | 5C | $390,000 | -2.3% | ||
| Oct 18, 2016 | 3A | 475 sf | $425,000 | $895/sf | +0.0% |
Market read. Most recent trades (2024) cleared a median $867/sf (recorded) across 1 sale. Median listing discount 2.2% 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 |
|---|---|---|
| May 16, 2013 | 4A | $330,000 |
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 1-01529-0031). 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.
Buying here? Co-op closing costs typically run 2 to 3% of the price. See NYC co-op and condo closing costs, line by line.
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What to know if you’re buying
This is a cooperative, so the path is a board package and interview, a financing cap set by the board, and underwriting of the building's financials and house rules. Note the operational realities up front: this is a self-managed building with laundry, heat, and hot water included, but no doorman, which suits buyers who value low carry over full-service amenities. Cats are permitted; dogs generally are not, and subletting is limited — confirm both at offer stage. Review the co-op's financials, reserve, and any planned capital work given the building's age.
The reasons to buy are the value and the location: an accessible Yorkville entry point with heat, hot water, and unlimited laundry folded into maintenance, in a well-run self-managed building on a convenient Upper East Side block.
What to know if you’re selling
The story is accessibility and location. A well-run, self-managed Yorkville co-op with low carrying costs and a prime block address sells to first-time buyers, pied-à-terre purchasers, and value-minded Upper East Side buyers. Pricing is an apartment-specific exercise: room count, floor, light, and condition drive the number more than any block average. We position the value narrative, prepare the buyer for the co-op process and the self-managed operation, and benchmark against the right comparable tier of boutique Upper East Side cooperatives.
Comparable buildings
If you're considering 238 East 84th Street, also look at these Yorkville and Upper East Side boutique cooperatives:
- 200 East 84th Street — Upper East Side building on the same block
- 103 East 84th Street — boutique Upper East Side cooperative nearby
- 114 East 84th Street — nearby Upper East Side building
- 200 East 83rd Street — Upper East Side building one block south
- 8 East 83rd Street — Upper East Side cooperative nearby
More Upper East Side buildings
- 235 East 73rd Street (Eastgate) — 1936 co-op by Emery Roth
- 235 East 87th Street (The Plymouth House) — 1962 co-op
- 237 East 88th Street — 1920 condominium
- 240 East 79th Street — 1929 co-op
- The Eastmore (240 East 76th Street) — 1957 condop
- 241 East 76th Street — 1959 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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