All 28 photos
Back to the listing4-bedroom house for sale in Park Slope
894 Union St, Park Slope, Brooklyn, New York, NY, 11215
- Size
- 4,846 ft² (450 m²)
- Available
- Now
- Year built
- 1887: Building details
About this home
House for sale in Park Slope, Brooklyn: 4 bedrooms, 6 bathrooms, 4,846 ft². Asking price $5,750,000. Built in 1887.
From the original listing · Realtor.comShowHide
894 Union Street is a distinguished landmarked 21 ft. wide Neo-Grec brownstone that has been lovingly maintained and thoughtfully upgraded by its current owners for more than two decades. Well-positioned on one of Park Slope's most coveted blocks between Prospect Park West and Eighth Avenue, close to Grand Army Plaza and Prospect Park, this legal four-family townhouse is currently configured as a three-family home, offering an ideal balance of luxurious owner occupancy and strong income potential. The owners' residence occupies the garden and parlor levels in a beautifully appointed 2-bedroom, 2.5-bath duplex , where thoughtful renovations complement the home's extraordinary nineteenth-century craftsmanship. Mitsubishi & LG mini-split systems provide efficient heating and cooling, while all-new Marvin windows installed throughout the townhouse between 2014 and 2015 enhance comfort and performance while preserving the residence's historic character. Soaring ceilings and graciously proportioned rooms showcase a remarkable collection of original details. The parlor level retains its magnificent mahogany staircase, richly detailed mahogany moldings and window casings, elegant wainscoting, window shutters, pocket doors and original dining room mantel, all preserved in exceptional condition. Upstairs, finely crafted oak millwork continues the home's architectural story, reflecting the quality and artistry of its original construction. The parlor-level kitchen opens to a beautifully designed outdoor retreat, featuring a custom steel & Ipe wood deck installed in 2016 with a staircase leading directly to the backyard. Designed as a private urban sanctuary, the garden features a tranquil Zen-inspired landscape with bamboo fencing, bluestone pavers, and custom terracotta tile details, creating a serene extension of the living space perfect for entertaining, gardening, or quiet moments outdoors. Below the duplex, a fully finished lower level reveals an extraordinary surprise: a custom retro-inspired movie theater designed by the previous owner, Theo Kalomirakis, widely regarded as the father of luxury home theater design. This remarkable screening room served as the prototype for what would become his internationally acclaimed work and remains a truly unique amenity for film enthusiasts and entertainers alike. The upper floors are configured as two oversized one-bedroom, one-bath apartments , each thoughtfully designed with an additional home office or nursery. These generously scaled apartments offer excellent rental income potential while maintaining a high standard of comfort and livability. The top-floor residence is currently leased until April 2027, providing a stable income stream for the next owner. Located within the coveted P.S. 321 school district , 894 Union Street enjoys one of Brooklyn's premier residential locations, just moments from Prospect Park, the Grand Army Plaza Greenmarket, Brooklyn Museum, Brooklyn Botanic Garden, acclaimed restaurants, cafes & boutiques on 7th Avenue, plus multiple subway lines. Showings by appointment only.
Description from Realtor.com, shown as published there. See the original listing
Roofy listing score
Grade B, 74/100 · Complete
How complete and honest this listing is, from what the source sites show and Roofy’s own checks. It isn’t a rating of the home or the agent. How the score works
Photos25/25
- Full points: 28 photos15/15
- Full points: Large, clear photos (about 1,000 px)10/10
Details16/20
- Full points: Price stated3/3
- Full points: Bedrooms stated2/2
- Full points: Bathrooms stated2/2
- Full points: Size stated2/2
- Does not apply: Move-in date: does not apply2/2
- Does not apply: Lease length: does not apply1/1
- No points: No pet policy0/1
- No points: Laundry not mentioned0/1
- Full points: Heat or utilities mentioned1/1
- No points: No amenities listed0/2
- Full points: Description of 451 words3/3
True cost11/15
- Some points: Taxes not stated4/8
- Full points: Price in line with similar homes in its neighborhood7/7
Accuracy12/15
- Nothing to compare: Listed on one site, nothing to compare3/6
- Full points: Agrees with city records (built 1887, 4 homes)5/5
- Full points: Confirmed on its source site 3 days ago4/4
Legal10/10
- Full points: No fair-housing problems found in the wording6/6
- Full points: The agent’s license is active4/4
Trust0/15
- No points: Not claimed on Roofy by the agent or owner0/10
- No points: The agent is not verified on Roofy0/5
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Scored Nov 2, 2026 · Score version 1. No one can pay to change a score.
Buying costs
What this price means for you: the monthly payment, and New York’s mansion tax, which the buyer pays on a home of $1 million or more.
Compared with the area
Asks $5,750,000, 10% above the median asking price for homes for sale with 4+ bedrooms in Park Slope.
- Median here
- $5,225,000
- 18 listings, last 90 days
- Per ft²
- $1,186.55 vs $1,264.89
- This home vs the median, 6% lower
Asking prices of listings on Roofy and listing sites in the last 90 days, not signed leases or sale prices. One currency, never converted.
More about Park SlopeLocation
- NeighborhoodPark SlopeHousing records and complaints
- BoroughBrooklynHousing records
- ZIP codeZIP 11215Buildings and sales
- ListingsHomes for sale in 11215125 homes for sale
- ListingsPark SlopeHomes for sale
- ListingsBrooklynHomes for sale
- CityNew YorkHomes for sale
Nearby transit
- Grand Army Plaza2 3 44 min walk
- 7 AvB Q7 min walk
- Eastern Pkwy-Brooklyn Museum2 3 410 min walk
Nearby public schools · District 15
- P.S. 321 William Pennelementary, grades PK-5560 m
- John Jay School for Lawhigh, grades 9-12700 m
- Park Slope Collegiatesecondary, grades 6-12700 m
Distance only, not school zones. Check the zoned school with NYC Public Schools.
The building
4 units · 3 floors · built 1887
Building record (NYC)
NYC records as of Nov 1 (weekly)894 Union Street · BBL 3-01066-0018 · built 1887 · 4 units
- Building type
- Walk-up apartment building
- Open HPD violations
- None
- Heat complaints
- 0 this season
- Complaints, last 12 months
- 0
- Rent stabilization
- None in 2018–2024 tax bills
- Last sale (12-month file)
- No sales in our 12-month file
No open immediately hazardous (Class C) violations.
See the full building recordPublic NYC records about the building, not about the person listing it. Buyers and renters can see them on city websites too. Source: NYC Open Data (DCP PLUTO, HPD, DOF).
Added to Roofy Oct 29, 2026Last checked on Realtor.com Oct 29, 2026Roofy doesn’t verify listings. Never send money before seeing a home.











































