BuildingCensus

51 LOUISIANA AVE NW

Office (large) · Washington · 20001

Active records here
3
business-tax + registry entities
Building area
260,352
sq ft (county roll)
Floors
—
county roll
Year built
1936
vintage
Assessed value
$149.3M
current roll
Assessed / sq ft
$573
assessed value per sq ft
Last sold
$496.9M
Feb 2015 · 2 parcels on one deed
Sale / sq ft
$1909
across the parcels conveyed

The building's own benchmarking filing

Energy performance

ENERGY STAR score
70
of 100 nationally
Site energy use
68.4
kBtu per sq ft per year
Reported emissions
1,121
tonnes CO₂e
Disclosed area
205,580
sq ft, 2025 filing

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.

Recorded transfers — county roll + state sale file

Sale history

The most recent transfer covered 2 parcels. The price shown is the whole transaction, not this parcel alone, so any per-square-foot figure is measured across everything the deed conveyed. The county record carries no multi-parcel flag for it; the parcels were identified by their identical price, date and ZIP.

RecordedPriceQualificationSourceInstrument
Feb 2015$496,905,750not ratedCounty roll—

Prices are the consideration the documentary stamps indicate, as recorded by Miami-Dade County. A qualification code is the property appraiser's judgement of whether a transfer was arm's length; the state publishes it only for the current roll period, so older transfers appear unrated rather than assumed clean. Whether a building is on the market today, and at what price, is not a public record and is not shown here — asking prices, listings and lease terms live in private commercial databases.

Public record — 3 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
LAWYERS WITHOUT BORDERS, INC.—Sep 2025dc_dlcpfolio match · high
FLIK INTERNATIONAL CORPORATION—May 2025dc_dlcpfolio match · high
AMSQ, L.P.—Apr 2025dc_dlcpfolio match · high

Washington, DC assessment roll

Parcel record

FieldValue
SSL06310809
Site address51 LOUISIANA AVE NW
Land use (DOR)052 — Office (large)
Building area (actual)260,352 sq ft
Floors / units / buildings— / — / —
Lot size48,698 sq ft
Year built1936
Zoning (primary)—
Land value—
Building value—
Total assessed value$149,303,970

Recorded owner (assessment roll)

AMSQ LP

Owner mailing address: 675 PONCE DE LEON AVE NE FL 7, ATLANTA, GA, 30308

The owner is on site.A business-tax receipt at this address is held in the owner's own name, so the public record shows an owner-occupier rather than a landlord letting the space.

2 Washington office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.

Location

Address
51 LOUISIANA AVE NW
City
Washington
ZIP
20001

Within ~650 m

Nearby office buildings

No other office parcels within ~650 m.

Frequently asked questions

Who owns 51 LOUISIANA AVE NW?

The recorded owner on the Washington, DC assessment roll (current) is AMSQ LP. Owner mailing address on file: 675 PONCE DE LEON AVE NE FL 7, ATLANTA, GA, 30308.

What companies have offices at 51 LOUISIANA AVE NW?

3 active business locations at this building appear in Washington, DC public records, including LAWYERS WITHOUT BORDERS, INC., FLIK INTERNATIONAL CORPORATION, AMSQ, L.P.. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 51 LOUISIANA AVE NW?

The county assessment roll records 260,352 sq ft of building area, built in 1936, on a 48,698 sq ft lot, with a current assessed value of $149,303,970.

Everything here comes from public records, and public records go stale. If you know better, say so.

Data provenance — public records only

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: Washington, DC assessment roll, SSL 06310809.