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for saleRealtyLens property overview
$10,750,000

12 Sidney Pl

Brooklyn, NY, 11201
View more Brooklyn, NY property pages
5Beds
4.5Baths
5,678Sqft
$1893$/sqft

Listing Notes

ARCHITECTURAL PROVENANCE Fully reimagined in 2010 by award-winning architect Steven Harris, celebrated in Architectural Digest's AD100, this townhouse reflects his signature blend of historic character and contemporary clarity. Museum-quality floating walls, a custom steel-and-glass staircase illuminated by a skylight, and oversized windows create a loft-like sensibility within a historic brownstone faade, restored from its former navy finish to warm brick and stone in harmony with the landmark streetscape. DESIGN COLLABORATION Designed in collaboration with Marti Sagar Interiors, the interiors are restorative, livable, and uplifting. Known for her contemporary yet timeless style, Sagar has created residences across New York, New England, and beyond, with a focus on functional sanctuaries that balance beauty, comfort, and modern lifestyle. LAYOUT CHARACTER Parlor Floor: A dramatic entertaining level with soaring ceilings, a gas fireplace, wide-plank hardwood floors, and an oversized gallery wall ideal for large-scale art. Floor-to-ceiling windows on both east and west exposures frame views of the landscaped garden and the Neo-Gothic St. Charles Borromeo Church, offering both privacy and architectural beauty. Garden Floor: A culinary centerpiece with an oversized chef's kitchen featuring a six-burner Wolf range, side-by-side Sub-Zero refrigeration, dual dishwashers and sinks, expansive stone prep surfaces, and abundant cabinetry. A formal dining room overlooks the garden. Third Floor: Currently configured as a library and office, but easily converted into a second primary suite. Fourth Floor: A tranquil primary suite with oversized windows, a gas-burning fireplace, and a rare screened sleeping porch enveloped in greenery. The spa-like bath includes a double vanity, soaking tub, and shower illuminated by three east-facing windows. Top Floor: Illuminated by a central skylight, this flexible space is ideal for a guest room, media room, fitness studio, or creative retreat. A custom steel-and-glass staircase with floating glass treads rises through the home, channeling light from the skylight and diffused by a fluted glass wall, creating a luminous vertical spine that connects every level. Basement: Utility and storage with discreet integration. Additional Features: Integrated sound system, gas fireplace, and zoned gas-fired HVAC with individually controlled rooms. LOCATION & LIFESTYLE 12 Sidney Place stands within the Brooklyn Heights Historic District, New York City's first landmarked neighborhood, designated in 1965. The district is celebrated for its stately brick and brownstone houses, tree-lined streets, and 19th-century charm, offering a rare blend of architectural heritage and modern urban living. Sidney Place itself is one of the neighborhood's most coveted blocks, prized for its privacy, gardens, and historic character. Just minutes from the Brooklyn Heights Promenade, Brooklyn Bridge Park, and a major transportation hub, the townhouse offers both serenity and city access.

Market Insights

Below nearby median-19%

$1893/sqft vs a nearby median of $2330/sqft.

Nearby median$2330/sqft
Nearby properties8
Property size5,678 sqft
  • -19% versus the nearby median price per square foot.
  • Price history is limited, so current comps matter more than trend alone.
  • 5,678 sqft creates a usable price-per-square-foot read.

Pricing Read

Yardstick fair value$14M$13M$15M · 50% confidence
vs ask $11M−$3.01M (−28.0%)

Asking price is about 28.0% below the fair value — likely to draw competing offers if it's still on market.

$2,330/sqft median across 8 tight comps × 5,678 sqft= $13M
  • Days-on-market gravity−$397k −3.0%
  • Transit access+$331k +2.5%
  • Pre-war character+$331k +2.5%
  • High-density walkability+$265k +2.0%
Cumulative NYC adjustments+$529k+4.0%

Property Read

FreshnessCurrent market data

The listing facts are current enough for an initial property review.

Market Position-19% vs nearby

The asking price per square foot is below the nearby median, which can be worth a closer comp check.

Price MovementInitial price point

Price history is still limited; review again as more market activity becomes available.

Diligence Read3 items to check
AI ReadinessReady to analyze
Assistant read

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Generated from the facts shown on this page and nearby market data. Not a professional appraisal.

Listing Details

Days on market
244 days
Last price change
No change recorded
Listed
Sep 11, 2025
Photos
31 photos
Property type
townhomes
Status
for sale
Last sold
Sep 8, 2006 · $2,700,000

Features & Amenities

Outdoor SpaceSecurity FeaturesDishwasherFireplaceWasher DryerBasementTwo Or More StoriesHigh CeilingMedia RoomLibrary

Photos

Building Facts

Year built
1850
Stories
3
Total units
1
Residential units
1
Building area
5,678 sqft
Lot size
1,918 sqft
Land use
One and two family buildings
Building class
A9

From NYC public records where available.

Price History

May 4, 2026Initial record
$10,750,000for sale

Public Records

DOB violations0 open

0 total recorded against the building

HPD violations0 open

0 total recorded

ACRIS documents10

Tax-lot deed, mortgage, and transfer records on file

311 calls (12 mo)41,399

Top: illegal parking

Top complaint types in ZIP 11201

  • Illegal Parking15,396
  • Noise - Residential4,950
  • Noise - Street/Sidewalk1,563
  • HEAT/HOT WATER1,301
  • Vendor Enforcement1,101

Recent Transfers (ACRIS)

  • Sep 8, 2006DEED$2,700,000

Sourced from NYC Open Data (DOB, HPD, ACRIS). Updated as the city republishes — check the original source for live status.

You can also find this listing on StreetEasy.

Listing data sourced from streeteasy.com. RealtyLens enriches and contextualises it for you, but the original listing lives on the source.