BuildingCensus

3839 FLATLANDS AVENUE

Office building · Brooklyn · 11234

At a glance

3839 FLATLANDS AVENUE in Brooklyn, NY is listed on the New York City property roll as “Office building”, BBL 3078170006. The roll records 24,370 sq ft of building area, 2 floors, a 1926 build year and an assessed value of $2,075,400.

Active records here
0
business-tax + registry entities
Building area
24,370
sq ft (county roll)
Floors
2
county roll
Year built
1926
vintage
Assessed value
$2.1M
current roll
Assessed / sq ft
$85
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
BBL3078170006
Site address3839 FLATLANDS AVENUE
Land use (DOR)O7 — Office building
Building area (actual)24,370 sq ft
Floors / units / buildings2 / 1 / 1
Lot size23,900 sq ft
Year built1926
Zoning (primary)—
Land value$242,100
Building value—
Total assessed value$2,075,400

Recorded owner (assessment roll)

BROOKS REALTY ASSOCIATES

Owner mailing address: not listed

Verify on the city's lot record →

Location

Address
3839 FLATLANDS AVENUE
City
Brooklyn
ZIP
11234
Coordinates
40.62120, -73.93629

Within ~650 m

Nearby office buildings

How does 3839 FLATLANDS AVENUE compare with other New York office buildings?

At 24,370 sq ft, 3839 FLATLANDS AVENUE is about 64% smaller than 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 $85 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 3078170006 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 3839 FLATLANDS AVENUE?

The recorded owner on the New York City assessment roll (current) is BROOKS REALTY ASSOCIATES.

How big is 3839 FLATLANDS AVENUE?

The New York City roll records 24,370 sq ft of building area, 2 floors, a build year of 1926. It sits on a 23,900 sq ft lot.

What is the assessed value of 3839 FLATLANDS AVENUE?

$2,075,400 on the New York City roll. Assessed values are taxable-roll figures, not market prices.

What is the BBL for 3839 FLATLANDS AVENUE?

BBL 3078170006, site address 3839 FLATLANDS AVENUE, 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 3839 FLATLANDS AVENUE

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 3078170006.

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, “3839 FLATLANDS AVENUE, Brooklyn, NY (BBL 3078170006)”, https://buildingcensus.com/offices/nyc/office-building-a6fb448e (data as of September 11, 2026).