
399 Prospect Ave Brooklyn, NY 11215
South Slope NeighborhoodAbout This Home
As of August 2025Own a Charming Townhouse in the Slope!
Welcome to 399 Prospect Avenue, a beautifully maintained two-family townhouse perfectly positioned on the border of Park Slope and South Slope. Offering exceptional flexibility, this home is ideal whether you're seeking a move-in-ready residence with rental income or envisioning a spacious four-bedroom single-family retreat.
The garden-level duplex invites you in with an open, thoughtfully designed layout, where exposed brick and original wood beams create warmth and character. The bright and airy living room flows seamlessly into a modern, spacious kitchen, complete with wide glass sliding doors that open onto a private patio and lush backyard—a serene oasis perfect for morning coffee, entertaining, or unwinding. This level also includes a half bath and versatile spaces that can be customized to suit your needs.
Upstairs, you'll find two well-appointed bedrooms and a full bathroom. The primary bedroom features direct access to a generous private deck with a staircase leading down to the garden. The second bedroom, currently used as an office, is full of charm, showcasing original details such as decorative moldings and fireplaces.
The top floor boasts a bright and airy one-bedroom rental unit, featuring a sun-filled front bedroom with ample closet space, an open kitchen-living area, and a full bathroom—offering an excellent opportunity for rental income or a private guest suite.
This exceptional townhouse is a fantastic condo alternative, providing private outdoor space, historic character, and versatility. Live comfortably while generating rental income, or easily convert the home into a spacious single-family haven.
Ideally situated near P.S. 10 and just minutes from New Voices, Prospect Park, Nitehawk Cinema, boutique shops, top-rated restaurants, supermarkets, multiple subway and bus lines, and the vibrant cultural experiences that make Park Slope, South Slope/Greenwood Heights some of Brooklyn’s most sought-after neighborhoods.
Don’t miss this rare opportunity to own a piece of Brooklyn charm! Contact us today for more details and to schedule a showing.
Last Agent to Sell the Property
Brennan Realty Services LLC License #10401256637 Listed on: 03/03/2025

Property Details
Home Type
- Multi-Family
Est. Annual Taxes
- $3,000
Year Built
- Built in 1901
Lot Details
- 1,250 Sq Ft Lot
Interior Spaces
- 2-Story Property
- Laundry in unit
Bedrooms and Bathrooms
- 3 Bedrooms
Community Details
- No Home Owners Association
- 2 Units
- Park Slope Subdivision
Listing and Financial Details
- Legal Lot and Block 0079 / 01112
Ownership History
Purchase Details
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.Purchase Details
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.Purchase Details
Purchase Details
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.Purchase Details
Similar Homes in Brooklyn, NY
Home Values in the Area
Average Home Value in this Area
Purchase History
Date | Type | Sale Price | Title Company |
---|---|---|---|
Deed | $1,865,000 | -- | |
Deed | $852,200 | -- | |
Deed | $852,200 | -- | |
Deed | $50,000 | -- | |
Deed | $50,000 | -- | |
Deed | $465,000 | -- | |
Deed | $465,000 | -- | |
Deed | -- | -- | |
Deed | -- | -- |
Mortgage History
Date | Status | Loan Amount | Loan Type |
---|---|---|---|
Open | $620,000 | Purchase Money Mortgage | |
Previous Owner | $8,031 | No Value Available | |
Previous Owner | $460,000 | Purchase Money Mortgage | |
Previous Owner | $188,942 | No Value Available | |
Previous Owner | $69,750 | No Value Available | |
Previous Owner | $372,000 | Purchase Money Mortgage |
Property History
Date | Event | Price | Change | Sq Ft Price |
---|---|---|---|---|
08/07/2025 08/07/25 | Sold | $1,952,500 | +4.7% | $1,273 / Sq Ft |
04/14/2025 04/14/25 | Pending | -- | -- | -- |
03/03/2025 03/03/25 | For Sale | $1,865,000 | -- | $1,216 / Sq Ft |
Tax History Compared to Growth
Tax History
Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
---|---|---|---|---|
2025 | $3,000 | $126,060 | $20,700 | $105,360 |
2024 | $3,000 | $127,200 | $20,700 | $106,500 |
2023 | $2,866 | $112,440 | $20,700 | $91,740 |
2022 | $2,373 | $90,480 | $20,700 | $69,780 |
2021 | $2,350 | $97,320 | $20,700 | $76,620 |
2020 | $1,167 | $110,580 | $20,700 | $89,880 |
2019 | $2,311 | $97,560 | $20,700 | $76,860 |
2018 | $2,100 | $11,761 | $3,055 | $8,706 |
2017 | $1,964 | $11,104 | $2,329 | $8,775 |
2016 | $1,785 | $10,477 | $2,361 | $8,116 |
2015 | $1,044 | $10,473 | $3,266 | $7,207 |
2014 | $1,044 | $10,372 | $3,864 | $6,508 |
Agents Affiliated with this Home
-
Seller's Agent in 2025
Matteo Caruso
Brennan Realty Services LLC
(347) 728-0251
3 in this area
5 Total Sales
-
Seller Co-Listing Agent in 2025
Danielle Caruso
Brennan Realty Services LLC
(718) 702-6751
3 in this area
3 Total Sales
Map
Source: Real Estate Board of New York (REBNY)
MLS Number: RLS20006404

APN: 01112-0080
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