Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
455 KEAP Street #PH

For Sale · Listing by Serhant

455 KEAP Street #PH

Williamsburg, Brooklyn

$3,100,000

Interested in this property?
Active For Sale Condo

$3,100,000

$1,294 per sq ft

455 KEAP Street #PH

Williamsburg, Brooklyn

MLS® #RLS20113121

RLS at REBNY

Listing by Serhant

4
Bedrooms
2.5
Baths
2,396
Sq. Ft.
2026
Year Built

Quick Summary

Bedrooms 4
Bathrooms 3 full, 1 half
Living Area 2,396 sq ft
Year Built 2026
Ownership Condo
HOA/Common Charges $1,102/mo
Property Taxes Contact for details
Neighborhood Williamsburg
Floor 3 of 4

Property Highlights

  • Views: City
  • Exposure: East,North,South,West facing
  • Outdoor Space: None, Balcony, Rooftop

Property Details

Type Condo
Ownership Condominium
Total Rooms 6
Baths 2 Full, 1 Half
Floor 3 of 4
View City
Exposure East,North,South,West
Cooling Central Air
Pets Yes
Year Built 2026 (New)
Living Area 2,396 sq ft
Structure Type HighRise
Basement Other
Block/Lot 01824/0016

Listing History

Event Date Price Change
Listed Sep 8, 2026 $3,100,000 -
Currently Sep 8, 2026 $3,100,000 -

Description

Come home to a rare penthouse triplex on one of Williamsburg's most coveted blocks, accessed by your own PRIVATE KEY ELEVATOR straight into the residence. A masterful three bedroom plus home office, two and a half bath layout with FOUR EXPOSURES and fourteen foot ceilings on the main level, a scale almost never seen in this market. A private storage unit is included. The main floor is wrapped in wide plank Terra Legno oak, unbroken from room to room, anchored by a sculptural staircase and a two tiered chef's kitchen finished top to bottom in custom Maderas wood cabinetry with an Austral Fantasy honed marble island, opening onto its own private balcony. Living and dining flow together beneath soaring ceilings and oversized windows, the living room walls finished in a light stone limewash. A standout powder room off its own hallway is fully limewashed floor to ceiling, finished with a travertine pedestal sink, cove lighting, and a Verde Ming honed marble floor, a design moment few homes in this price point can claim. Upstairs, the same wide plank Terra Legno oak continues underfoot beneath nine foot ceilings, holding a true primary suite with a private balcony, a walk in closet, and a windowed spa bath sheathed floor to ceiling in Bariazzo Ivory White Deco porcelain, the floor laid in its signature checkered pattern, a limewashed ceiling and cove lighting overhead, with a floating double vanity and oversized glass shower. Two additional bedrooms share a second full bath in a warmer stone palette, floor to ceiling greige tile, a limewashed ceiling, cove lighting, a deep soaking tub with rain shower, and a floating fluted wood vanity topped in marble. A skylit third bedroom completes the level. At the top level, a windowed home office, flexible as a fourth bedroom, opens onto TWO PRIVATE ROOF DECKS with open Manhattan skyline views, including the Empire State Building. Combined with the private balconies off the kitchen and primary suite, that's nearly 800 square feet of outdoor space, entirely private, entirely yours. Located on Keap Street in the heart of Williamsburg, just one block to the G and L trains, moments from the Williamsburg Bridge, and surrounded by the neighborhood's most celebrated names in food, Kellogg's Diner right at your corner, St. Anselm, Ainslie, and old school DeStefano's Steakhouse on Lorimer all a short walk away, alongside the boutiques and galleries that made this stretch of Brooklyn iconic. This is a rare opportunity to own one of Brooklyn's most exceptional penthouses. The complete terms are in the offering plan available from sponsor. File No. CD25-0305

Features & Amenities

Interior Features

High Ceilings Storage Walk In Closets Building Other Washer Hookup In Unit

Exterior Features

Balcony Private Outdoor Space Over60 Sqft None Balcony Rooftop

Building Amenities

Elevators

Appliances

Dishwasher

Building Information

Building Data View Compliance & Permits
Total Units 2
Stories 4
Structure HighRise

Financial Details

Common Charges $1,102/mo
RE Taxes Contact for details

Williamsburg is the global face of Brooklyn's cultural and residential renaissance. Defined by its stunning waterfront parks and the iconic L-train connection to Manhattan, the neighborhood offers a high-energy lifestyle. The real estate market is dominated by sleek, glass-walled luxury condominiums along the East River, alongside historic warehouse conversions and boutique new developments that cater to a wide range of buyers and renters.

Williamsburg Live Market Data

View Neighborhood

Active Listings

132

Median Asking Price

$1.95M

Median $/Sqft

$1,655

Avg Days on Market

N/A

New This Week

11

Price Reduced

14%

Sold (30 Days)

40

Median Sale Price

$1.75M

Live data from RLS at REBNY • Updated 9/8/26, 1:07 PM EST

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Location

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455 KEAP Street #PH, Williamsburg, Kings County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

2025
Year Built
1 years old
4
Floors
2
Residential Units
M1-2/R6A
Zoning District
Two Family Dwellings

Tax & Assessment

Assessed Value: $17,160
Land Value: $17,160
Exemptions: $0

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 1,369 SF
Building Area: 3,733 SF
Built FAR: 2.73
Allowed FAR: 3

Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)

Want help estimating ownership costs or understanding building compliance? Let's discuss

Frequently Asked Questions

Common questions about this property

The current listed common charges are $1,102 per month. Confirm the exact amount with Milton Coste before making an offer.

This property has 4 bedrooms and 2 full bathrooms and 1 half bathroom.

The listed interior living area is 2,396 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 2026, making it approximately 0 years old.

This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.

Pets are permitted at this property. Contact Milton Coste for weight limits or breed restrictions.

At the current list price of $3,100,000 for 2,396 sq ft, the asking price per square foot is approximately $1,294. This figure is for reference only and may differ from appraised or assessed values.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or milton@miltoncoste.com. 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) 416-7433
MLS® ID: RLS20113121
First Listed: 9/8/2026
On Market: 9/8/2026
Price Changed: 9/8/2026
Contract Date: 9/8/2026

Listing Courtesy of Serhant - Raquel Lomonico

Listing Contact: (561) 568-0297

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 at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 9/8/2026 at 5:07 PM UTC

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Williamsburg Market Update

40 sales last 30 days · $1.95M median · 3.3 months supply

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Quick Facts

Status Active Type Condo Neighborhood Williamsburg Borough Brooklyn
County Kings
Floor 3 of 4
Year Built 2026
First Listed 9/8/2026
Living Area 2,396 sqft
Common Charges $1,102/mo

Monthly Costs Estimate

Down Payment 20%

$620,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Common Charges $1,102
Total Monthly $0

Estimates only. Consult a lender for exact figures.

Mansion tax applies at this price point

New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $3M to $4,999,999 at 1.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$46,500

Run the numbers on a different offer price

Estimate based on the asking price. Confirm your own obligation with your real estate attorney.

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