For Sale · Listing by Decode Real Estate
90 8TH Avenue #MAIS1A
Park Slope, Brooklyn
$850,000
90 8TH Avenue #MAIS1A
MLS® #RLS20115390
Listing by Decode Real Estate
Open House Scheduled
Sunday, September 20 • 11:00 AM – 12:00 PM
REBNY 2025: signed Buyer Representation Agreement required before any showing.
- 2
- Bedrooms
- 1
- Bath
- N/A
- Sq. Ft.
- 1927
- Year Built
Quick Summary
Property Highlights
- Views: Other
- Exposure: East,South facing
- Character: Pre-war building (1927)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 15, 2026 | $850,000 | - |
| Currently | Sep 16, 2026 | $850,000 | - |
Description
A RARE OPPORTUNITY TO CREATE A PARK SLOPE HOME Residence 1A is currently configured and legally designated as a medical office. The co-op permits the residential conversion, giving a buyer the opportunity to work with an architect and contractor to create a home tailored to their needs. Alternate floor plans illustrate two possible two-bedrooms layout. The bathroom has been virtually staged with a bathtub. What makes the opportunity particularly compelling is what already exists: a corner position, southern exposure, oversized casement windows and excellent natural light. The first floor is elevated above street level, while a dedicated private entrance from the street creates a true sense of arrival and provides a practical transition space for bikes, strollers and everyday storage. The existing footprint lends itself to a generously proportioned two-bedroom home with substantial living and dining space. Deep closets throughout provide unusually good storage, and the current configuration gives a buyer flexibility to rethink the layout rather than renovate around someone else's choices. Financing options are available and we can connect interested purchasers with a lender experienced in renovation loans for co-op properties. Built in 1927 and designed by Sugarman & Berger, the architects behind One Fifth Avenue, The President is a full-service prewar co-op with a 24-hour doorman, live-in superintendent, laundry room and bike storage. The building is pet-friendly and retains many of its original prewar details. The location is quintessential North Park Slope. Prospect Park and Grand Army Plaza are just blocks away, along with the Saturday Greenmarket, neighborhood restaurants, shops and cafés. Transportation is exceptionally convenient, with the 2/3 trains at Grand Army Plaza and the B/Q at 7th Avenue nearby. The address is zoned for P.S. 321. This is not a move-in-ready apartment unless you are a physician using as a medical office. It is the opportunity to create one, in a full-service prewar building just one block from Prospect Park. Buyer should independently verify all plans, approvals, conversion requirements and permitted use with their architect, attorney and other appropriate professionals.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Park Slope
View All Park Slope ListingsPark Slope is a well-known Brooklyn neighborhood, recognized for its tree-lined streets and preserved brownstones. Bordering the western edge of Prospect Park, the neighborhood offers convenient access to green space. The real estate market features a mix of historic townhouses, cooperatives, and modern condominiums, within walking distance of the park.
Park Slope Live Market Data
View NeighborhoodActive Listings
78
Median Asking Price
$1.98M
Median $/Sqft
$1,388
Avg Days on Market
N/A
New This Week
21
Price Reduced
13%
Sold (30 Days)
42
Median Sale Price
$1.70M
Live data from RLS at REBNY • Updated 9/16/26, 1:42 AM EST
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Location
90 8TH Avenue #MAIS1A, Park Slope, Kings County
Floor Plans
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed monthly maintenance are $2,527 per month. Confirm the exact amount with Milton Coste before making an offer.
This property has 2 bedrooms and 1 full bathroom.
According to MLS records, the building was constructed in 1927, making it approximately 99 years old.
This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.
Pets are permitted at this property. Contact Milton Coste for weight limits or breed restrictions.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or [email protected]. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.
Have a question not answered here?
(917) 416-7433Listing Courtesy of Decode Real Estate - Danielle Nazinitsky
Listing Contact: (330) 936-7928
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 9/16/2026 at 5:42 AM UTC
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Quick Facts
Monthly Costs Estimate
$170,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
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