One Penn (Penn 1)
Office building · Manhattan · 10001 · 250 WEST 34 STREET
The building's own benchmarking filing
Energy performance
From the building's own filing under the City of Miami's benchmarking ordinance. An ENERGY STAR score of 75 or above means the building outperforms three quarters of comparable buildings nationally. It is a self-reported figure, verified by the city only to the extent the ordinance requires.
New York City assessment roll
Parcel record
| Field | Value |
|---|---|
| BBL | 1007830070 |
| Site address | 250 WEST 34 STREET |
| Land use (DOR) | O4 — Office building |
| Building area (actual) | 2,689,635 sq ft |
| Floors / units / buildings | 57 / 451 / 3 |
| Lot size | 127,966 sq ft |
| Year built | 1972 |
| Zoning (primary) | — |
| Land value | $51,749,550 |
| Building value | — |
| Total assessed value | $437,083,650 |
Recorded owner (assessment roll)
KORPENN LLC
Owner mailing address: not listed
Location
- Address
- 250 WEST 34 STREET
- City
- Manhattan
- ZIP
- 10001
- Coordinates
- 40.75126, -73.99237
Within ~650 m
Nearby office buildings
- 100 WEST 33 STREET0 tenants
1,105,991 sq ft · 12 fl · 2001
- 393 7 AVENUE0 tenants
1,103,075 sq ft · 26 fl · 1926
- 592 7 AVENUE0 tenants
1,100,000 sq ft · 38 fl · 2000
- 1411 BROADWAY0 tenants
1,088,074 sq ft · 42 fl · 1969
- 1459 BROADWAY0 tenants
1,079,378 sq ft · 48 fl · 2002
- 1407 BROADWAY0 tenants
911,896 sq ft · 43 fl · 1950
Frequently asked questions
Who owns One Penn (Penn 1)?
The recorded owner on the New York City assessment roll (current) is KORPENN LLC. Owner mailing address on file: not listed.
What companies have offices at One Penn (Penn 1)?
No business locations at this building appear in the public records ingested so far — no licence, tax or registry record currently lists this address; that is a gap in the record, not proof the building is empty.
How big is One Penn (Penn 1)?
The county assessment roll records 2,689,635 sq ft of building area across 57 floors, built in 1972, on a 127,966 sq ft lot, with a current assessed value of $437,083,650.
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Miami-Dade County Property Appraiser — assessment roll — Parcel identity, site address, recorded owner, use code, areas, year built and assessed values, via the county's public GIS services (MD_LandInformation, PaGis layer).
- Miami-Dade County Local Business Tax roll — Business-tax receipts: business name, premises address (incl. suite/floor), account status and start date, via the county's public GIS services.
- Florida Division of Corporations (Sunbiz) — corporate data file — Registered entities: document number, status, filing date, registered agent and principal address, from the state's public quarterly data file.
- Miami BE305 building-energy benchmarking disclosures — What the building reported about its own performance: energy intensity, an ENERGY STAR score, reported emissions and water use, under the City of Miami's benchmarking ordinance.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Working with New York office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
Dataset updated . Source: New York City assessment roll, BBL 1007830070.