523–527 Eighth Street
523 and 527 Eighth Street, between Eighth Avenue and Prospect Park West · Park Slope
BBL 3010890064 · BIN 3025846
- Year built
- 1904
- Type
- Cooperative
- Landmark
- Designated
- Amenities
- Common laundry, bicycle storage and private storage
Every recorded sale at this building, 1997–2025
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- Recent range
- $1.1M – $1.1M
- Listing discount
- -1.0%
- Recorded transfers
- 18
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A Private Pricing Opinion — what your apartment at 523–527 Eighth Street 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.
523 and 527 Eighth Street form one cooperative across two four-story apartment houses. The buildings belong to a row begun in 1904 for John Hilson and designed by Henry Pohlman. Their buff brick, limestone bases and paired curved bays are part of the Park Slope Historic District's early-twentieth-century apartment-house architecture.
The association has twenty-four residences in total. The nine-apartment count for 523 describes one tax parcel, while the companion building contains fifteen apartments under the same cooperative corporation. That combined scope matters for understanding the ownership group and the buildings whose expenses it carries.
Architecture and unit composition
Pohlman's design uses full-height curved bays on either side of the entrances. Flemish-bond brickwork rises above smooth limestone first floors, with limestone trim at the windows. Splayed lintels, keystones and carved entrance entablatures carry the neo-Georgian detailing. Arched top-floor windows and curved cornices continue the bays' rhythm at the roofline.
The apartments at 523 include compact studios and larger two-bedroom homes, with some layouts approaching 1,000 square feet. Flexible room arrangements have allowed different uses of the larger interiors over time. Wood floors, moldings, exposed brick and tin ceilings survive in selected homes.
The principal apartments face the park block, while windows at the rear and sides provide other exposures according to the plan. Floor level, room configuration and the surviving original details distinguish homes within the same exterior envelope.
Building operations
Common laundry, private storage bins and bicycle storage are located in the basement. Those shared facilities supplement the apartments without adding a large amenity operation.
The two parcels have different tax classifications despite belonging to the same corporation. The nine-residence parcel at 523 is Class 2C, while the fifteen-residence parcel at 527 is Class 2. The cooperative's property-tax expense therefore reflects two assessment treatments within one ownership entity.
Historic-district designation covers the original exterior architecture. The limestone, curved masonry bays, entrance surrounds and cornices are important components of the buildings' upkeep, and exterior alterations require appropriate LPC approvals.
Recent sales
Recent transfers 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 |
|---|---|---|---|---|---|
| Jan 15, 2025 | 4L | 2 BR · 1 BA | $1,100,000 | -4.3% | |
| Mar 30, 2021 | 3R | 2 BR · 1 BA | $850,000 | +6.9% | |
| Jan 21, 2021 | 1D | 1 BA | $370,000 | +7.2% | |
| Apr 18, 2019 | 3L | 2 BR · 1 BA | $975,000 | -2.0% | |
| Dec 19, 2017 | 4L | 2 BR · 1 BA · 1,000 sf | $999,000 | $999/sf | +0.0% |
| Jun 22, 2017 | 2R | 2 BR · 1,000 sf | $1,030,000 | $1,030/sf | +5.2% |
| Jan 5, 2016 | 2L | 2 BR | $960,000 | +5.5% | |
| Jan 20, 2015 | 3L | 2 BR · 1 BA | $910,000 | +1.2% |
Market read. $/sf is measured on the latest sales with reliable square footage (2017): a median $1,015/sf across 2 sales. The building has traded as recently as 2025. Median listing discount -0.7% 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 3-01089-0064) 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 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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Comparable buildings
- 459 12th Street — A smaller prewar cooperative in a similarly low-rise Park Slope building.
- 86 Prospect Park West — A low-rise prewar cooperative with a closely comparable association size and a park-front address.
- 75 Prospect Park West — A similarly scaled cooperative in a taller prewar building.
- 125 Prospect Park West — A larger nearby cooperative for buyers considering a park-front setting.
- Ansonia Storage Warehouse — A larger cooperative conversion offering a different type of prewar interior space.
More Park Slope buildings
- 486 Third Street — 2007 condominium
- 497 Ninth Street — 1893 condominium
- 500 4 Avenue, 500 Fourth Avenue — 2010 condominium
- 53 Lincoln Place — condominium
- 551 4th Street — co-op
- 560 Carroll Street — 2010 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Park Slope.
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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