BuildingCensus

117 GRATTAN STREET

Office building · Brooklyn · 11237

At a glance

117 GRATTAN STREET in Brooklyn, NY is listed on the New York City property roll as “Office building”, BBL 3030050001. The roll records 62,700 sq ft of building area, 4 floors, a 1931 build year and an assessed value of $3,174,300.

Active records here
0
business-tax + registry entities
Building area
62,700
sq ft (county roll)
Floors
4
county roll
Year built
1931
vintage
Assessed value
$3.2M
current roll
Assessed / sq ft
$51
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

The building's own benchmarking filing

Energy performance

ENERGY STAR score
100
top quartile nationally
Site energy use
18.3
kBtu per sq ft per year
Reported emissions
141
tonnes CO₂e
Disclosed area
125,400
sq ft, 2021 filing

From the building's own filing under its city's benchmarking ordinance, latest of 2 years on record. 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

FieldValue
BBL3030050001
Site address117 GRATTAN STREET
Land use (DOR)O5 — Office building
Building area (actual)62,700 sq ft
Floors / units / buildings4 / 86 / 2
Lot size20,000 sq ft
Year built1931
Zoning (primary)—
Land value$276,300
Building value—
Total assessed value$3,174,300

Recorded owner (assessment roll)

PORTER EQUITIES LLC

Owner mailing address: not listed

Verify on the city's lot record →

Location

Address
117 GRATTAN STREET
City
Brooklyn
ZIP
11237
Coordinates
40.70658, -73.92826

Within ~650 m

Nearby office buildings

How does 117 GRATTAN STREET compare with other New York office buildings?

At 62,700 sq ft, 117 GRATTAN STREET is roughly 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 $51 per square foot of building area, against $157 across all office floor area on the roll.

What has happened at 117 GRATTAN STREET recently?

The building files energy-benchmarking disclosures — 2 report years are matched to this parcel.

What does “Office building” mean for this parcel?

The New York City roll classifies BBL 3030050001 as “Office building” (use code O5). 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 117 GRATTAN STREET?

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

How big is 117 GRATTAN STREET?

The New York City roll records 62,700 sq ft of building area, 4 floors, a build year of 1931. It sits on a 20,000 sq ft lot.

What is the assessed value of 117 GRATTAN STREET?

$3,174,300 on the New York City roll. Assessed values are taxable-roll figures, not market prices.

What is the BBL for 117 GRATTAN STREET?

BBL 3030050001, site address 117 GRATTAN 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 117 GRATTAN 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 3030050001.

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, “117 GRATTAN STREET, Brooklyn, NY (BBL 3030050001)”, https://buildingcensus.com/offices/nyc/office-building-46e561c4 (data as of September 11, 2026).