45 MAIN STREET
Office building · Brooklyn · 11201
At a glance
45 MAIN STREET in Brooklyn, NY is listed on the New York City property roll as “Office building”, BBL 3000370001. The roll records 476,000 sq ft of building area, 12 floors, a 1906 build year and an assessed value of $51,896,250.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city'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 | 3000370001 |
| Site address | 45 MAIN STREET |
| Land use (DOR) | O6 — Office building |
| Building area (actual) | 476,000 sq ft |
| Floors / units / buildings | 12 / 162 / 3 |
| Lot size | 48,951 sq ft |
| Year built | 1906 |
| Zoning (primary) | — |
| Land value | $2,025,000 |
| Building value | — |
| Total assessed value | $51,896,250 |
Recorded owner (assessment roll)
45 MAIN ASSOCIATES LLC
Owner mailing address: not listed
Location
- Address
- 45 MAIN STREET
- City
- Brooklyn
- ZIP
- 11201
- Coordinates
- 40.70289, -73.99016
Within ~650 m
Nearby office buildings
- 20 JAY STREET0 tenants
500,000 sq ft · 11 fl · 1909
- 39 WASHINGTON STREET0 tenants
448,300 sq ft · 9 fl · 1904
- 51 FURMAN STREET0 tenants
404,920 sq ft · 12 fl · 1938
- 55 WATER STREET0 tenants
392,162 sq ft · 5 fl · 1900
- 68 JAY STREET0 tenants
320,000 sq ft · 10 fl · 1914
- 146 CONCORD STREET0 tenants
309,952 sq ft · 12 fl · 1915
How does 45 MAIN STREET compare with other New York office buildings?
At 476,000 sq ft, 45 MAIN STREET is about 7 times the size of the average office building on the New York City roll, which comes to 67,377 sq ft across 7,166 buildings.
With 12 floors it is one of 1,158 office buildings of ten or more floors in the metro.
Its assessed value works out to $109 per square foot of building area, against $157 across all office floor area on the roll.
What has happened at 45 MAIN STREET recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Office building” mean for this parcel?
The New York City roll classifies BBL 3000370001 as “Office building” (use code O6). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 45 MAIN STREET?
The recorded owner on the New York City assessment roll (current) is 45 MAIN ASSOCIATES LLC.
How big is 45 MAIN STREET?
The New York City roll records 476,000 sq ft of building area, 12 floors, a build year of 1906. It sits on a 48,951 sq ft lot.
What is the assessed value of 45 MAIN STREET?
$51,896,250 on the New York City roll. Assessed values are taxable-roll figures, not market prices.
What is the BBL for 45 MAIN STREET?
BBL 3000370001, site address 45 MAIN STREET, Brooklyn. It is the key to look the parcel up in the Department of City Planning PLUTO extract and Department of Finance rolling sales (New York City).
More around 45 MAIN STREET
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- New York City — Department of City Planning PLUTO extract and Department of Finance rolling sales. The city publishes no owner mailing address, so landlord portfolios cannot be grouped here, and its business licences cover regulated trades rather than office tenants.
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.
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Dataset updated . Source: New York City assessment roll, BBL 3000370001.
About this data
Source: Department of City Planning PLUTO extract and Department of Finance rolling sales (New York City), as published September 11, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “45 MAIN STREET, Brooklyn, NY (BBL 3000370001)”, https://buildingcensus.com/offices/nyc/office-building-7b9015f2 (data as of September 11, 2026).