330 East 79th Street (Charleswood)
330 East 79th Street, New York, NY 10075
Lenox Hill, Upper East Side
BBL 1014530037 · BIN 1045262
- Year built
- 1941
- Type
- Cooperative
- Units
- 70
- Floors
- 10
- Landmark
- No
- Amenities
- Doorman and live-in superintendent per listing records. The audited statements confirm a laundry room and rentable storage bins. Listing records also mention a bike room. There are passenger and service elevators, per the house rules
- Financing
- Up to 80 percent, per the purchase application on file
- Flip tax
- 2 percent of the selling price, paid by the seller, per the audited financial statements
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at Charleswood 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.
330 East 79th Street is a mid-size East 79th Street co-op where the sponsor is still selling apartments. It was built in 1941 as a rental and converted under a non-eviction plan filed in 1990 and closed in 1992. At that point the sponsor still owned the shares for every apartment where the tenant did not buy. The sponsor has been selling those apartments one at a time as they become vacant, and ACRIS records sponsor sales in every stretch from 2005 through July 2026.
How much the sponsor still owns affects buyers. In its 2020 amendment, the sponsor listed 12 apartments, equal to 20.1 percent of the shares. Most were occupied by rent-stabilized or rent-controlled tenants. ACRIS shows six of those twelve resold since then. That leaves about six sponsor apartments, or roughly 9 percent of the shares, if the sponsor has bought no others. Resident shareholders have controlled the board since before November 1996, per the amendment.
Pricing is driven by the building's size and layouts. Many apartments were built as five-and-a-half-room homes with two or more baths. That is a family-size layout at a price well below the Park and Fifth Avenue co-ops. The 80 percent financing ceiling is looser than at many Upper East Side prewar co-ops, which widens the pool of buyers.
Architecture and unit composition
The building fills a 116-foot-wide lot, about 11,850 square feet, with ten stories of red brick. Listing records describe angled windows, a regular window pattern and a doorman entrance. Interiors include beamed ceilings, herringbone floors, windowed kitchens and walk-in closets, per listing records.
The 2020 amendment's apartment schedule shows the typical sizes. The largest line is five and a half rooms with two to two and a half baths. Smaller homes are four rooms with one bath and three rooms with one bath. Apartments are lettered A through G on each floor. Owners have combined several of them, according to recorded share transfers and DOB filings: 5D/E, 9B/C, 10A/G and 10B/C. These combined apartments are the building's largest homes and trade at the top of its range.
Building operations
Finances, per audited statements on file (year ending December 31, 2020). Maintenance brought in about $2.0 million. Real estate taxes, before the shareholder abatement, were about 47 percent of expenses. Payroll was about $600,000, which fits a staffed doorman building. Unrestricted cash was about $805,000 at year-end, and a separate reserve account held about $517,000 for capital repairs. The corporation has never commissioned a reserve study. The statements also show a separate real-estate-tax assessment on top of maintenance and a one-time operating assessment in 2018. Ask for the most recent statements and the current assessment schedule.
Underlying mortgage — the date to know. In April 2020, the corporation refinanced into a $5.25 million interest-only mortgage with a New York bank. The loan has an effective fixed rate of 3.14 percent and matures April 1, 2030. The refinancing retired a $4 million loan and added about $1.25 million in cash. ACRIS records the consolidation. The debt comes to about $75,000 per apartment. The low rate ends in three and a half years. At 6 percent, annual interest on the same balance would rise from about $165,000 to about $315,000, an increase equal to roughly 7 to 8 percent of 2020 maintenance. That estimate assumes the balance stays the same and is refinanced at 6 percent. Ask the board what its refinancing plan is.
Rooftop wireless license. The corporation licenses roof space to a wireless carrier for about $60,000 to $70,000 a year, and the fee rises 3 percent a year. The current term runs from November 2012 for fifteen years, so it comes up in late 2027. Ask whether it will be renewed.
Façade. DOB's façade-inspection record shows a Cycle 9 filing rated unsafe in February 2024. A façade restoration under permits filed in 2023 followed, and an amended Cycle 9 filing rated the façade safe in November 2024. Ask how the work was paid for and whether any assessment is still being collected.
Management and the neighboring tower. In the 2019 audited statements, the managing agent is described as partly controlled by the sponsor. The 2020 statements do not repeat that description. There is a second record to ask about. ACRIS lists this lot on 1989 declarations and on later mortgages for the 44-story rental tower at 350 East 79th Street. That tower was built in 1989 by the entity that owned 330 before the conversion. Records like these usually mean a zoning-lot merger or a shared-facility easement. Ask the managing agent for the recorded declaration. It will show whether 330 still has any unused development rights and what obligations run between the two buildings.
Policy framework
Flip tax. 2 percent of the selling price, paid by the seller, per the audited statements.
Financing. Up to 80 percent, per the purchase application. If you finance, the board package must include a lender commitment letter showing the monthly payment and three original recognition agreements.
Board process. The purchase application asks for a full financial statement, employment and income verification, and professional and personal references. The application says applicants should not contact board members or building staff while it is under review.
Subletting. Allowed with approval. The corporation collects a sublet fee and a $1,000 deposit for each move-in and move-out. Get the term limits and fees from the managing agent.
Pets. Only with the board's written permission, which it can revoke. Dogs must be carried or leashed in common areas and may not ride the passenger elevator.
Not documented: pied-à-terre use, the post-closing liquidity requirement, the debt-to-income standard, and whether trusts or LLCs can hold shares. Get these in writing from the managing agent.
Recent sales
The building sells steadily for its size, with four recorded sales in the last twenty-four months. The sponsor was the seller in three of them. Sponsor apartments often come to market after a long rent-regulated tenancy and need renovation, which is why a stream of recent DOB renovation filings follows them. The combined apartments and the renovated five-and-a-half-room homes on upper floors set the top of the range. Unrenovated sponsor apartments and the three- and four-room lines on low floors are the entry point. Prices are quoted per room. Against East 79th Street peers, the 80 percent ceiling and the room count per apartment support value. The 2030 mortgage maturity and the remaining sponsor block are what a careful buyer will price. Index market statements to 2025, the last complete year. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Recent transfers at this building, sourced from NYC Department of Finance records. Apartment-level detail (line, condition, asking-price context) verified upon consultation request.
| Date | Unit | Price |
|---|---|---|
| Aug 18, 2026 | 5A | $1,196,443.75 |
| Aug 4, 2026 | 2C | $960,000 |
| May 8, 2026 | 1A | $1,323,452 |
| Mar 12, 2025 | 6B | $900,000 |
| Jul 10, 2024 | 3F | $572,500 |
| Jul 10, 2024 | 4B | $1,250,000 |
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01453-0037) 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.
At the recent median sale of $1.2M (4 transfers since 2024), a buyer putting 25% down would pay about $25,001 to close, or 2.1% of the price.
- Mansion tax: $11,964
- No mortgage recording tax or title insurance on a co-op purchase
- Attorneys, lender, building fees and filings: $13,037
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
Buying from the sponsor is a different transaction. A sponsor sale follows the offering plan and its amendments, and the unsold-share rules can differ from a shareholder resale. Read the most recent amendment. Ask your attorney whether a board interview and the flip tax apply to your purchase.
Ask about 2030. The mortgage is interest-only at 3.14 percent and matures April 1, 2030. Ask the board how it plans to refinance.
Get the declaration. Ask for the recorded 1989 documents that link this lot to 350 East 79th Street. It is standard diligence, and the managing agent should be able to produce them.
Confirm the façade assessment. After the 2023–2024 restoration, ask whether any capital assessment is still being billed.
What to know if you’re selling
Budget the 2 percent. The flip tax is paid by the seller on the selling price.
Price against the sponsor apartments. Unrenovated sponsor apartments set the low end of the building's recent sales. A renovated five-and-a-half-room home should be priced and marketed as a different product from them.
The financing ceiling helps. At 80 percent, buyers who would be shut out of a 65- or 70-percent building can bid here. Say so in the listing.
Comparable buildings
If you're considering 330 East 79th Street, also evaluate:
- 308 East 79th Street — 1928 co-op next door, much larger, prewar
- 325 East 79th Street — 1929 co-op across the street, similar in scale
- 240 East 79th Street — 1929 rental converted to a co-op, 63 apartments, one avenue west
- 225 East 74th Street — 1938 co-op of about the same period
- 235 East 73rd Street — 1936 co-op, same era
- 345 East 73rd Street — 1961 rental converted to a co-op in 1985, larger, postwar
- 300 East 79th Street — condominium at the corner of the same block, if you want condo ownership
More Upper East Side buildings
- 325 East 79th Street — 1929 co-op
- 325 East 80th Street — 1940 co-op
- 330 East 70th Street — 1957 co-op
- The Saratoga (330 East 75th Street) — 1985 condominium by SLCE Architects
- 333 East 66th Street (The Bryn Mawr) — 1964 co-op
- 333 East 68th Street — 1928 co-op by Cross & Cross
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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