- Year built
- 1910
- Type
- Condominium
- Landmark
- In a historic district
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 501 8th 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.
501 8th Avenue is a red-brick corner building with stone trim in the Park Slope Historic District, a block from Prospect Park. The sponsor has converted it into four floor-through condominiums of three and four bedrooms, one per floor.
Four-bedroom condominium homes of 2,000 square feet and more are scarce in Park Slope outside townhouses. At asks of $3.3 million to $4.0 million for the lower three floors, the building prices against single-family brownstones as much as against other condominiums.
Architecture and residences
The building has four stories on a 20-by-108-foot lot, with about 8,600 square feet of floor area per PLUTO. The Department of Buildings approved a subdivision of the tax lot into four condominium lots in June 2025. Because the building is in a historic district, exterior work is subject to Landmarks Preservation Commission review.
Listing records describe four floor-through residences, each with private storage, kitchens with Bertazzoni appliances, video intercoms and in-unit laundry. Residence 1, the lowest home, is listed at about 2,701 square feet with four bedrooms. The second- and third-floor homes are listed as four-bedroom, three-bath layouts. The top-floor residence is described at about 1,720 square feet; one listing record shows it at 235 square feet, which is a data error.
Offering and pricing
Listing records refer to an offering plan available from the sponsor, but the Attorney General's record for this address was not located in this review. The plan number, total offering price and acceptance date are not confirmed here.
Published asks in 2026:
- Residence 1: first listed at $3,995,000; listed at $3,500,000 in September 2026, about $1,296 per square foot
- Residences 2 and 3: $3,300,000 each, four bedrooms
- Top-floor residence: $2,995,000, about $1,741 per square foot on the marketed size. One brokerage record shows it as sold at that price; another still shows it active
Published common charges run about $740 to $940 a month, and the top-floor listing shows real estate taxes of about $860 a month. No sponsor closings were checked in ACRIS for this page. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
Local Law 97
This building is below the 25,000 sq ft threshold at which LL97 limits apply to a building on its own. It is still covered if it shares a tax lot or condominium board with buildings totaling over 50,000 sq ft; confirm on DOB’s covered-buildings list.
See full Local Law 97 analysis →Recent sales
Recent closings 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 |
|---|---|---|
| Apr 9, 2025 | — | $6,100,000 |
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-01085-0010; each condominium apartment is its own tax lot). 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.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 501 8th Avenue and nearby.
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
Confirm the plan. Ask for the offering plan, its file number and all amendments, and confirm acceptance and effectiveness before signing.
Price movement. The largest home was cut by $495,000 within the year. Read the asking prices on the other homes in that light, and compare the net price per square foot with recorded sales once deeds appear.
Historic district. Façade, window and rooftop work requires Landmarks review. Ask how the façade is budgeted in the reserve and whether any Local Law 11 work is pending.
A four-unit condominium. With four owners, every decision on common charges, repairs and insurance involves a small group. Read the by-laws on voting and on who manages the building.
Closing costs. In sponsor sales the buyer customarily pays the New York State transfer tax (0.65% at $3 million or more) and the New York City real property transfer tax (1.425%), plus the mansion tax, which rises to 1.5% between $3 million and $5 million in New York City. Use the calculators below to run your price.
Comparable buildings
If you're considering 501 8th Avenue, also look at these Park Slope condominiums:
- 108 Prospect Park West — four-residence condominium in a historic corner house facing the park
- 160 Prospect Park West — four-residence conversion of an 1899 brick-and-limestone building on the park
- 105 St. Marks Place — four-residence condominium created by a 2014 townhouse enlargement
- 136 St. Marks Place — nine-residence elevator condominium with roof decks
- 1 Prospect Park West — 64-unit conversion of the former Knights of Columbus clubhouse at Grand Army Plaza
More Park Slope buildings
- 486 Third Street — 2007 condominium
- 497 Ninth Street — 1893 condominium
- 500 4 Avenue, 500 Fourth Avenue — 2010 condominium
- 523–527 Eighth Street, 523 and 527 Eighth Street — 1904 co-op
- 53 Lincoln Place — condominium
- 551 4th Street — co-op
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 501 8th Avenue?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
646.939.7375 · c.cohen@compass.com