275 Sixth Avenue
275 Sixth Avenue, between Garfield Place and Carroll Street — Park Slope
BBL 3009667503 · BIN 3020664
- Year built
- 1920
- Type
- Condominium
- Floors
- 4
- Landmark
- No
- Amenities
- In-unit laundry; individual air-conditioning systems
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 275 Sixth Avenue 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.
About the building
275 Sixth Avenue is a limestone row house converted into a four-residence condominium in 2025. The sponsor's public offering notice identifies 275 6th LLC and a plan filed in 2024. The conversion retained the narrow townhouse frontage and four-story scale while introducing newly finished interiors. Bay windows project from the front, and the building stands outside the designated Park Slope historic districts.
The residential mix includes a lower duplex of nearly 3,000 square feet with three bedrooms on its main level and a private backyard of roughly 780 square feet. Other apartments occupy individual floors, with roof-deck space attached to an upper residence. The garden is arranged in several sections, including a paved area and a planted rear portion. Traditional row-house features include decorative mantels, pocket doors and built-ins, while the renovated accommodation incorporates laundry and split-system heating and cooling. Access to the upper floors is by stairs.
Recent sales
Recent closings at this building, curated by The Roebling Team research desk. 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 4, 2025 | 1 | 3 BR · 2.5 BA · 2,972 sf | $3,825,000 | $1,287/sf | -0.6% |
| Mar 1, 2023 | — | 14 BR · 7 BA · 6,180 sf | $4,425,000 | $716/sf | +4.1% |
Market read. Most recent trades (2025) cleared a median $1,287/sf across 1 sale.
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00966-7503) 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 from recorded condo declarations and offering plans.
Buying here? Condo closing costs with a mortgage typically run 3 to 6% 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
One owner holds two of the four residential lots. That concentration equals half the apartment count, so the declaration's voting percentages and sponsor-control provisions matter when considering how the association makes decisions. The small project also gives each remaining sale greater importance for lender review and the transition to owner governance.
Comparable buildings
- 220 Park Place — a small brownstone condominium association with homes spread across adjoining buildings.
- 153 Lincoln Place — a mansion conversion with ten residences, providing a larger historic-house condominium comparison.
- 64 Seventh Avenue — a prewar conversion combining residential ownership with a separate professional space.
More Park Slope buildings
- 269 4th Avenue (Six Garfield), 269 Fourth Avenue — 2018 condominium
- 27 Prospect Park West — 1928 co-op
- 270 Fifth Street (The Milk Factory) — 1911 co-op
- 276 13th Street (5 One 5 Condominiums) — 2008 condominium
- 279 First Street — 1921 co-op
- 279 Prospect Avenue — 2004 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Park Slope.
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 275 Sixth Avenue?
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