BuildingCensus

522 21ST ST NW # 101

Office · Washington · 20006

At a glance

522 21ST ST NW # 101 in Washington, DC is listed on the Washington, DC property roll as “Office”, SSL 00812001. The roll records 1,811 sq ft of building area, a 1989 build year and an assessed value of $563,130. It last sold for $520,000 in Jan 2015. 23 active business locations at this address appear in public records.

Active records here
23
business-tax + registry entities
Building area
1,811
sq ft (county roll)
Floors
—
county roll
Year built
1989
vintage
Assessed value
$563.1K
current roll
Assessed / sq ft
$311
assessed value per sq ft
Last sold
$520K
Jan 2015
Sale / sq ft
$287
at the last recorded sale

Recorded transfers — county roll + state sale file

Sale history

RecordedPriceQualificationSourceInstrument
Jan 2015$520,000not ratedCounty roll—

Prices are the consideration recorded in Washington, DC's public property records. Where a qualification code exists it is the assessor's judgement of whether a transfer was arm's length; transfers without one 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 — 23 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
Brandi Buzzetta407Jul 2026DC business licenceaddress match · high
Michael A Halpert—Jul 2026DC business licenceaddress match · high
Siamack Kazor601Jun 2026DC business licenceaddress match · high
MonroeHouseA912 LLC912Mar 2026DC business licenceaddress match · high
Samir Batra - Ripple Saraiya511BDec 2025DC business licenceaddress match · high
LONG & FOSTER PROP MGMT307Dec 2025DC business licenceaddress match · high
Blue OceanAPT 510Nov 2025DC business licenceaddress match · high
Tae Yeon Kim702Sep 2025DC business licenceaddress match · high
James E. Patterson, Journalist—Aug 2025DC business licenceaddress match · high
ORBIS PROPERTIES LLC911Aug 2025DC business licenceaddress match · high
Marina Mansour507Jul 2025DC business licenceaddress match · high
RAY - 522 21ST ST NW #812812Jul 2025DC business licenceaddress match · high
Shagufa Hossain#902Apr 2025DC business licenceaddress match · high
Anita M. Herrera304Feb 2025DC business licenceaddress match · high
Pierre Buekens—Jan 2025DC business licenceaddress match · high
ATTACHE PROPERTY MGT LLC901Nov 2024DC business licenceaddress match · high
WATSON - 522 21ST ST NW #707—Jul 2024DC business licenceaddress match · high
Aalap Jamadagni Herur-Raman—May 2024DC business licenceaddress match · high
Imran and Masuda Khan—May 2024DC business licenceaddress match · high
Leonardo Neher Rvoc Trust FBO William Neher—Apr 2024DC business licenceaddress match · high
Natasha Spivack—Mar 2024DC business licenceaddress match · high
Soufraki Irrevocable Trust802Feb 2024DC business licenceaddress match · high
Padam Neopane—Dec 2022DC business licenceaddress match · high

Washington, DC assessment roll

Parcel record

FieldValue
SSL00812001
Site address522 21ST ST NW # 101
Land use (DOR)058 — Office
Building area (actual)1,811 sq ft
Floors / units / buildings— / — / —
Lot size472 sq ft
Year built1989
Zoning (primary)—
Land value—
Building value—
Total assessed value$563,130

Recorded owner (assessment roll)

LINGUISTIC SOCIETY OF AMERICA

Owner mailing address: 522 21ST ST NW # 101, WASHINGTON, DC, 20006

Location

Address
522 21ST ST NW # 101
City
Washington
ZIP
20006

Within ~650 m

Nearby office buildings

No other office parcels within ~650 m.

How does 522 21ST ST NW # 101 compare with other Washington office buildings?

At 1,811 sq ft, 522 21ST ST NW # 101 is less than a tenth the size of the average office building on the Washington, DC roll, which comes to 120,450 sq ft across 1,761 buildings.

Its assessed value works out to $311 per square foot of building area, against $370 across all office floor area on the roll.

The last recorded sale priced it at $287 per square foot.

What has happened at 522 21ST ST NW # 101 recently?

1 recorded transfer is on file for this parcel, the latest dated Jan 2015.

What does “Office” mean for this parcel?

The Washington, DC roll classifies SSL 00812001 as “Office” (use code 058). 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 522 21ST ST NW # 101?

The recorded owner on the Washington, DC assessment roll (current) is LINGUISTIC SOCIETY OF AMERICA. Owner mailing address on file: 522 21ST ST NW # 101, WASHINGTON, DC, 20006.

What companies have offices at 522 21ST ST NW # 101?

23 active business locations at this building appear in Washington, DC public records, including Brandi Buzzetta, Michael A Halpert, Siamack Kazor, MonroeHouseA912 LLC, Samir Batra - Ripple Saraiya. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 522 21ST ST NW # 101?

The Washington, DC roll records 1,811 sq ft of building area, a build year of 1989. It sits on a 472 sq ft lot.

What is the assessed value of 522 21ST ST NW # 101?

$563,130 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.

When did 522 21ST ST NW # 101 last sell?

The last recorded transfer was in Jan 2015 for $520,000 ($287 per square foot).

What is the SSL for 522 21ST ST NW # 101?

SSL 00812001, site address 522 21ST ST NW # 101, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).

More around 522 21ST ST NW # 101

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

Data provenance — public records only

  • Washington, DC — Integrated Tax System public extract (owner names, mailing addresses, assessments), CAMA commercial and daily sales tables, Basic Business Licenses (suite-level premises; the universal catch-all licence was repealed Oct 2025, thinning the roll thereafter), and DOEE energy benchmarking.

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 00812001.

About this data

Source: Integrated Tax System public extract (Washington, DC), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.

Cite as: BuildingCensus, “522 21ST ST NW # 101, Washington, DC (SSL 00812001)”, https://buildingcensus.com/offices/dc/office-building-e2ab4e01 (data as of September 20, 2026).