670 President Street
670 President Street, just off Fifth Avenue · Park Slope
BBL 3009590013 · BIN 3020283
- Year built
- 1920
- Type
- Cooperative
- Landmark
- No
- Amenities
- Shared rear garden, basement laundry, individual storage, bicycle storage and video intercom
Every recorded sale at this building, 2004–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 1BR median
- $699K
- Recent range
- $649K – $836K
- Listing discount
- 0.0%
- Recorded transfers
- 29
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670 President Street is a self-managed co-op made up of 20 one-bedroom apartments. That consistent apartment mix is its defining feature: the building concentrates on smaller prewar homes within a five-story walk-up. The shared rear garden provides outdoor space for the entire co-op, while individual storage and bicycle storage extend the utility of the apartments.
Built in 1920 and converted to cooperative ownership in 1988, the property stands just off Fifth Avenue. Union Street's R station is nearby on Fourth Avenue. The co-op's shared facilities are concentrated in the basement and rear yard.
Architecture and unit composition
The one-bedroom apartments retain varied prewar features, including high ceilings, hardwood and parquet floors, archways and substantial window openings. Some layouts have a long entrance gallery leading toward the living room and kitchen. Others use a more direct progression through the apartment. Interior areas in recorded transactions include approximately 600–650 square feet.
The kitchens have evolved through individual renovations. Eat-in arrangements remain in some homes, while other apartments connect the kitchen more openly to living and dining space. Windows, closet placement and the length of the entrance hall give apartments of similar size different proportions.
Front and rear exposures create distinct outlooks. Rear-facing rooms look toward gardens and trees; upper floors can have more open views over the surrounding roofs. The building is a walk-up, with apartments distributed across all five floors.
Building operations
The co-op manages itself. Owners share responsibility for the building through its board, and the common facilities include a furnished rear garden with space for outdoor dining and barbecues. A video intercom serves the entry.
Basement laundry is shared. Individual storage is allocated to owners, with separate space for bicycles. These are useful facilities in a building composed entirely of one-bedroom apartments, where storing bulky items inside the home can consume a meaningful portion of the usable space.
The property is assessed as a single Class 2 cooperative building and receives no building-wide tax abatement. The current zoning spans R6B and R6A; the existing floor area is larger than the 2.0 residential FAR benchmark carried for the lot.
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 | vs. Ask |
|---|---|---|---|---|
| Aug 7, 2026 | 1D | 1 BR · 1 BA | $835,500 | +5.1% |
| May 22, 2026 | 1C | 1 BR · 1 BA | $795,000 | +0.0% |
| May 9, 2025 | 1B | 1 BR · 1 BA | $730,000 | +5.0% |
| Jul 8, 2024 | 3B | 1 BR · 1 BA | $675,000 | +0.0% |
| Jan 5, 2024 | 5B | 1 BR · 1 BA | $660,000 | +0.0% |
| Sep 6, 2023 | 4B | 1 BR · 1 BA | $699,000 | +0.0% |
| Mar 29, 2022 | 1C | 1 BR · 1 BA | $750,000 | +11.1% |
| May 12, 2020 | 1B | 1 BR | $630,000 | -1.4% |
Market read. $/sf is measured on the latest sales with reliable square footage (2015): a median $884/sf across 2 sales. The building has traded as recently as 2026. Median listing discount 0.0% from the last ask.
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 |
|---|---|---|
| Nov 30, 2023 | 4C | $649,000 |
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 3-00959-0013) 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 $795K (3 transfers since 2024), a buyer putting 25% down would pay about $11,531 to close, or 1.5% of the price.
- Mansion tax: $0
- No mortgage recording tax or title insurance on a co-op purchase
- Attorneys, lender, building fees and filings: $11,531
Assumes a resale (the seller pays transfer taxes), a $4,500 attorney fee and a mortgage on the rest.
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Comparable buildings
- The Presidential: A co-op on the same street, with a former hospital's courtyard and varied converted layouts.
- 904 Union Street: A smaller prewar walk-up cooperative nearby.
- 10 Montgomery Place: A larger walk-up co-op in two ornamented Beaux-Arts apartment houses.
- 86 Prospect Park West: A prewar walk-up cooperative with park frontage and neoclassical detailing.
- 75 Prospect Park West: A modestly scaled prewar co-op with elevator access and park-side positioning.
More Park Slope buildings
- 648 Second Street — 1903 co-op
- 667 Degraw Street — 1899 condominium
- 668 Baltic Street — condominium
- 675 Sackett Street (Park Slope Terrace) — 2003 condominium
- 680 Carroll Street — 1930 co-op
- 695 Degraw Street — 1899 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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