347 West 71st Street, Manhattan

A 1910 single-family townhouse held by one family for decades until an $8.1M sale in March 2026.

A single-family West Side townhouse built in 1910 that stayed in one family's hands for decades before selling to an LLC for $8.1M in March 2026. Single-family buildings generate minimal multi-family code filings, shifting focus to physical structure and street texture. Three things to know:

Decades of single-family trust holding recently shifted to an LLC. Deed transfers trace ownership from family holdings in 1968 to a trust transfer in 2024, culminating in an $8.1M sale to Lincoln Square 71 LLC in March 2026. Decades of family stewardship recently gave way to corporate entity ownership.

Air quality calls point to neighborhood exhaust and vapor drift. 9 indoor air quality complaints were logged within three blocks over the last year, most recently on August 31, 2026. In dense mixed blocks, street-level air and exhaust drift can travel through nearby windows or mechanical intakes.

Parking enforcement dominates the surrounding three blocks. 294 illegal parking calls within three blocks over the last year, led by 103 posted-sign violations and 82 double-parking reports. Short-errand turnover and delivery staging shape the surrounding street curb.

Quieter signals on this building and the blocks around it:

• 8 helicopter noise calls logged within three blocks over the last year, most recently on August 24, 2026.
• 6 street-level encampment reports recorded within three blocks over the last 12 months.

347 West 71st Street is a single-family home in Manhattan, New York City (BBL 1011830115). This building is associated with Susan Cherwin, Trustee. Brix does not yet have a current violation read for this property (not enough recent data), along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

Built in 1910, this single-family home sits in Manhattan and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.

Tenants have filed 3 HPD complaints about this building over the last five years, most often about electric.

What tenants have called the city about here over the last five years:

• Electric: 2 complaints
• Unsanitary Condition: 1 complaint

The most recent complaint on this building was filed March 28, 2025.

The building last changed hands on March 26, 2026 for $8,100,000, according to recorded deeds.

Brix score: 100/100. View the Building Report on Brix.

See every NYC building owned by Susan Cherwin, Trustee on the landlord portfolio page.