916 Union Street
916 Union Street, between Eighth Avenue and Prospect Park West · Park Slope
BBL 3010660030 · BIN 3024702
- Year built
- 1920
- Type
- Cooperative
- Units
- 24
- Floors
- 7
- Landmark
- No
- Amenities
- Elevator, landscaped common garden and courtyard, common laundry and bicycle storage
- Financing
- Minimum 20 percent down — confirm with the managing agent.
Every recorded sale at this building, 2004–2025
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- Recent range
- $850K – $850K
- Listing discount
- -2.4%
- Recorded transfers
- 34
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916 Union Street is a prewar elevator cooperative at the Grand Army Plaza end of Park Slope. It contains 24 homes within a seven-story building, with a common garden and courtyard behind the residential frontage. Some apartments look toward the plaza and its trees.
The building offers relatively compact interiors in a location close to Prospect Park's principal northwestern entrance. Recorded apartment areas commonly fall between approximately 700 and 880 square feet. The inventory includes substantial one-bedroom layouts and homes with additional room divisions within similar overall footprints.
Union Street connects the building to Prospect Park West on the east and Eighth Avenue on the west. Grand Army Plaza provides access to the 2 and 3 trains, while the B and Q are available at Seventh Avenue. The park, library and plaza are immediate parts of the setting.
Architecture and unit composition
The property has approximately 50 feet of frontage and a recorded building depth of about 80 feet. Its seven-story height is substantial for a cooperative with only 24 residences. Elevator service separates upper-floor access from the stair-only arrangements common in smaller prewar buildings.
The apartment plans include entrance foyers, separate bedrooms and windowed bathrooms. High ceilings, wood flooring and base moldings appear in the interiors. Renovated homes may have open or enlarged kitchens, while other apartments retain more defined divisions between cooking and living areas.
Some north-facing living rooms have broad groups of windows overlooking Grand Army Plaza. Those exposures bring a different outlook from homes oriented toward the rear courtyard. The common garden provides outdoor space at the building level, independent of the view from a particular apartment.
Size differences within the inventory are modest enough that configuration matters. A home around 750 square feet can arrange its rooms differently from another of nearly the same area. The recorded history includes repeated sales of apartments between approximately 750 and 850 square feet, providing a more useful internal comparison group than a single building-wide average.
Building operations
The cooperative maintains an elevator, common laundry and bicycle storage. Its landscaped garden and courtyard are shared facilities. The garden belongs to the building's common-space offering, so a garden-facing apartment does not imply private ownership of that outdoor area.
The façade and roof restoration job filed in April 2023 was signed off by DOB in July 2025.
The cooperative has no current tax abatement. Its Class 2 tax treatment applies at the building level, with property expenses incorporated into maintenance.
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 |
|---|---|---|---|---|---|
| Nov 5, 2025 | 2A | 1 BR · 1 BA | $850,000 | +0.0% | |
| Sep 29, 2022 | 2C | 1 BR · 1 BA · 850 sf | $830,000 | $976/sf | +4.4% |
| Apr 26, 2022 | 6D | 1 BR · 1 BA | $790,000 | +1.9% | |
| Jul 26, 2021 | 4B | 1 BR · 1 BA | $685,000 | +0.0% | |
| Feb 28, 2019 | 3B | 1 BR · 1 BA | $690,000 | -1.4% | |
| Oct 27, 2017 | 5A | 1 BR · 1 BA · 775 sf | $780,000 | $1,006/sf | +2.8% |
| Aug 9, 2017 | 2B | 1 BR · 1 BA · 750 sf | $772,000 | $1,029/sf | +10.4% |
| Aug 3, 2016 | 2C | 1 BR · 1 BA · 850 sf | $746,000 | $878/sf | +10.5% |
Market read. $/sf is measured on the latest sales with reliable square footage (2022): a median $937/sf across 1 sale. The building has traded as recently as 2025. Median listing discount -1.9% 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 3-01066-0030) 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
- 296 Sterling Place — A prewar cooperative with a closely comparable residential inventory near Grand Army Plaza.
- 904 Union Street — A smaller cooperative on the same street for comparison with lower-rise ownership housing.
- 75 Prospect Park West — A prewar cooperative of similar scale with a direct park-side address.
- 27 Prospect Park West — A taller prewar cooperative near the same park entrance.
- 39 Plaza Street West — A larger prewar cooperative with a plaza setting and more vertical massing.
More Park Slope buildings
- 910 Union Street (Park Union) — 1931 condominium
- 915 President Street — 1890 co-op
- 916 Eighth Avenue — 1892 condominium
- 917 President Street — 1890 co-op
- 92 Prospect Park West — 1908 co-op
- 932 President 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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