BuildingCensus

840 EMPIRE BOULEVARD

Office building · Brooklyn · 11203

At a glance

840 EMPIRE BOULEVARD in Brooklyn, NY is listed on the New York City property roll as “Office building”, BBL 3014300013. The roll records 5,360 sq ft of building area, 1 floors, a 1930 build year and an assessed value of $396,900.

Active records here
0
business-tax + registry entities
Building area
5,360
sq ft (county roll)
Floors
1
county roll
Year built
1930
vintage
Assessed value
$396.9K
current roll
Assessed / sq ft
$74
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

New York City assessment roll

Parcel record

FieldValue
BBL3014300013
Site address840 EMPIRE BOULEVARD
Land use (DOR)O7 — Office building
Building area (actual)5,360 sq ft
Floors / units / buildings1 / 1 / 1
Lot size8,840 sq ft
Year built1930
Zoning (primary)—
Land value$99,450
Building value—
Total assessed value$396,900

Recorded owner (assessment roll)

840 LEFFERTS LLC

Owner mailing address: not listed

Verify on the city's lot record →

Location

Address
840 EMPIRE BOULEVARD
City
Brooklyn
ZIP
11203
Coordinates
40.66314, -73.93371

Within ~650 m

Nearby office buildings

How does 840 EMPIRE BOULEVARD compare with other New York office buildings?

At 5,360 sq ft, 840 EMPIRE BOULEVARD is less than a tenth the size of the average office building on the New York City roll, which comes to 67,377 sq ft across 7,166 buildings.

Its assessed value works out to $74 per square foot of building area, against $157 across all office floor area on the roll.

What does “Office building” mean for this parcel?

The New York City roll classifies BBL 3014300013 as “Office building” (use code O7). 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 840 EMPIRE BOULEVARD?

The recorded owner on the New York City assessment roll (current) is 840 LEFFERTS LLC.

How big is 840 EMPIRE BOULEVARD?

The New York City roll records 5,360 sq ft of building area, 1 floors, a build year of 1930. It sits on a 8,840 sq ft lot.

What is the assessed value of 840 EMPIRE BOULEVARD?

$396,900 on the New York City roll. Assessed values are taxable-roll figures, not market prices.

What is the BBL for 840 EMPIRE BOULEVARD?

BBL 3014300013, site address 840 EMPIRE BOULEVARD, 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 840 EMPIRE BOULEVARD

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 3014300013.

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, “840 EMPIRE BOULEVARD, Brooklyn, NY (BBL 3014300013)”, https://buildingcensus.com/offices/nyc/office-building-469cf572 (data as of September 11, 2026).