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$3,850,000
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Property Description
Timber House introduces a new standard for Brooklyn condominium living, where sustainability, design, and comfort intersect. Crafted using cutting-edge timber construction and thoughtfully layered natural materials, this newly completed three-bedroom, three-and-a-half-bath home offers a modern retreat with an elevated, architectural presence. With 2,041 square feet of interior space, the home is defined by soaring nearly 11-foot ceilings, exposed beams, and wide-plank engineered pine floors by Roots Custom. The open living area is both expansive and adaptable, easily accommodating formal dining, relaxed entertaining, and work-from-home needs. At its center, a refined European kitchen pairs custom cabinetry and porcelain countertops with hexagonal tile flooring by Prospect NY, a walk-in pantry, and a curated suite of Bosch and Gaggenau appliances, including an induction cooktop. The primary suite is a private sanctuary featuring a generous walk-in closet and a spa-inspired Carrara marble bath with a Duravit soaking tub, oversized walk-in shower with linear drain, Restoration Hardware medicine cabinets, and a custom floating vanity finished with Brizo brushed gold fixtures. Two additional bedroom suites each include their own bathrooms, one enhanced by a Juliet balcony and walk-in closet. A powder room, in-unit Miele washer-dryer, and integrated smart home technology-including Lutron lighting, Latch entry, Nest safety systems, and high-speed connectivity-complete the residence. A private storage unit and dedicated on-site parking space with EV charging are included in the purchase price, offering rare convenience in this sought-after neighborhood. Timber House's striking Danish brick exterior conceals an advanced glue-laminated timber structural system that minimizes environmental impact while maximizing strength and warmth. Energy-conscious features such as triple-glazed Passive House-quality windows, solar panels, multi-zone heat pump heating and cooling, energy-recovery ventilation, and mineral wool insulation create a quiet, efficient, and comfortable living environment. Residents enjoy a modern lobby with secure package storage, bike storage, private storage for each residence, and a beautifully landscaped, furnished roof deck with panoramic views stretching across Brooklyn and Manhattan. Timber House offers a rare opportunity to own a design-driven, environmentally responsible home in one of Brooklyn's most dynamic and desirable settings.
Full Property Details
Full Property Details for 670 Union St #4A
General
- Price: $3,850,000
- HOA FEE: $945/month
- Taxes: $25,680
- Status: Active
- Type: Apartment
- Source: REBNY
- MLS ID: RLS20065084
- Updated: 1/5/2026
- Added to Site: 12 day(s) ago
Interior
- Number of Rooms: 6
- Interior Features: Entrance Foyer, Eat-in Kitchen, High Ceilings, Pantry, Soaking Tub, Walk-In Closet(s)
- Appliances: Cooktop, Dryer, Dishwasher, Washer
- Furnishings: Unfurnished
- Flooring: Hardwood, Tile
Rooms
Bathrooms
- Total Bathrooms: 4
- Full Bathrooms: 3
- Half Bathrooms: 1
Bedrooms
- Total Bedrooms: 3
Other Rooms
- Laundry: In Unit, See Remarks
Exterior
- Exterior Features: Balcony, Juliet Balcony, Private Outdoor Space Under 60 Sqft
- Porch/Patio/Deck: Deck, Balcony
Parking
- Garage: Yes
- Parking Features: Garage, On Site
Location
- County: Kings
- Subdivision: Park Slope
Community
- Pets Allowed: Yes
Heating & Cooling
- Central air: Yes
- Air Conditioning: Yes
- Cooling Type: Central Air
- Heating Type: Central
Structural Information
- Structure Type: Duplex
- Stories/Levels: 6
- Square Feet: 2,041
- Living Area: 2,041 Sq. Ft.
- Year Built: 2022
- Other Struct. Feat.: Elevator(s)
Lot Features
- Lot Dimensions: 16.670000 x 100.000000
Financial Considerations
- Association Fee: $945
- Assoc Fee Freq.: Monthly
- Tax Amount: $25,680
Disclosures and Reports
- Special Conditions: Standard
- Property ID: 00955-1208
- Block: 955
- Lot Number: 1208
Listing Courtesy of Compass
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Schools
Schools serving 670 Union St #4A
School District:New York City Geographic School District 13
| Name | Grades | Distance |
|---|---|---|
Ps 282 Park Slope 180 6th Avenue, Brooklyn, NY 11217 | PK-8 | 0.2 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 670 Union St #4A
Date
Details
Price
Change
Source
1/05/2026
Listed
$3,850,000
19.74%
MLS
12/12/2022
Sold
$3,215,362
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 670 Union St #4A
Year
Property Taxes
Change
Tax Assessment
Change
2025
$33,977
—
$271,814
-7%
2024
$34,012
2%
$292,081
4%
2023
$33,276
—
$280,238
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 670 Union St #4A
670 Union Street #4A, Brooklyn, NY 11215 (MLS# RLS20065084) is a Apartment property with 3 bedrooms, 3 full bathrooms and 1 partial bathroom. 670 Union Street #4A is currently listed for $3,850,000 and was received on January 05, 2026. Want to learn more about 670 Union Street #4A? Do you have questions about finding other Apartment real estate for sale in Brooklyn? You can browse all Brooklyn real estate or contact a Coldwell Banker agent to request more information.

