2001 S ST NW
Office (large) · Washington · 20009
At a glance
2001 S ST NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 00900032. The roll records 85,007 sq ft of building area, a 1969 build year and an assessed value of $10,568,130. 5 active business locations at this address appear in public records.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city'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.
Public record — 5 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| ACTIVE MINDS, INC. | — | Mar 2026 | DC business licence | folio match · high |
| INDIVIDUAL ADVOCACY GROUP INC. | — | Feb 2025 | DC business licence | folio match · high |
| Markham | — | Dec 2024 | DC business licence | folio match · high |
| Pillar Development, LLC | — | Jul 2024 | DC business licence | folio match · high |
| LAUFER FAMILY INTERESTS LLC | — | Jul 2024 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 00900032 |
| Site address | 2001 S ST NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 85,007 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 8,641 sq ft |
| Year built | 1969 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $10,568,130 |
Recorded owner (assessment roll)
20TH & S ASSOCIATES LLC
Owner mailing address: 1120 VERMONT AVE NW, WASHINGTON, DC, 20005
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
- 2001 S ST NW
- City
- Washington
- ZIP
- 20009
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 2001 S ST NW compare with other Washington office buildings?
At 85,007 sq ft, 2001 S ST NW is about 29% smaller than 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 $124 per square foot of building area, against $370 across all office floor area on the roll.
Does the owner of 2001 S ST NW hold other Washington office property?
2 Washington office properties (2 parcels, 752K sq ft) are recorded to 2 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What has happened at 2001 S ST NW recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Office (large)” mean for this parcel?
The Washington, DC roll classifies SSL 00900032 as “Office (large)” (use code 052). 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 2001 S ST NW?
The recorded owner on the Washington, DC assessment roll (current) is 20TH & S ASSOCIATES LLC. Owner mailing address on file: 1120 VERMONT AVE NW, WASHINGTON, DC, 20005.
What companies have offices at 2001 S ST NW?
5 active business locations at this building appear in Washington, DC public records, including ACTIVE MINDS, INC., INDIVIDUAL ADVOCACY GROUP INC., Markham, Pillar Development, LLC, LAUFER FAMILY INTERESTS LLC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 2001 S ST NW?
The Washington, DC roll records 85,007 sq ft of building area, a build year of 1969. It sits on a 8,641 sq ft lot.
What is the assessed value of 2001 S ST NW?
$10,568,130 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
What is the SSL for 2001 S ST NW?
SSL 00900032, site address 2001 S ST NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 2001 S ST NW
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 00900032.
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, “2001 S ST NW, Washington, DC (SSL 00900032)”, https://buildingcensus.com/offices/dc/office-building-fc59ec1a (data as of September 20, 2026).