5101 WISCONSIN AVE NW
Office (large) · Washington · 20016
At a glance
5101 WISCONSIN AVE NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 16660804. The roll records 102,638 sq ft of building area, a 1976 build year and an assessed value of $10,874,751. 6 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, 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.
Public record — 6 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| THE WILKES COMPANY, LLC | 200 | Dec 2025 | DC business licence | folio match · high |
| SOMERSET DEVELOPMENT COMPANY, LLC. | 210 | Dec 2025 | DC business licence | folio match · high |
| Modulus LLC | — | Apr 2025 | DC business licence | folio match · high |
| AQUILA REHAB | — | Mar 2025 | DC business licence | folio match · high |
| LENKIN COMPANY (THE) | — | Jan 2025 | DC business licence | folio match · high |
| WASHINGTON INSTITUTE OF NATURAL MEDICINE | 100 | Nov 2024 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 16660804 |
| Site address | 5101 WISCONSIN AVE NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 102,638 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 17,480 sq ft |
| Year built | 1976 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $10,874,751 |
Recorded owner (assessment roll)
GARRISON ASSOCIATES LLC
THE LENKIN CO MGMT INC
Owner mailing address: 5101 WISCONSIN AVE NW FL 5, WASHINGTON, DC, 20016
4 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
- 5101 WISCONSIN AVE NW
- City
- Washington
- ZIP
- 20016
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 5101 WISCONSIN AVE NW compare with other Washington office buildings?
At 102,638 sq ft, 5101 WISCONSIN AVE NW is about 15% 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 $106 per square foot of building area, against $370 across all office floor area on the roll.
Does the owner of 5101 WISCONSIN AVE NW hold other Washington office property?
4 Washington office properties (4 parcels, 488.7K sq ft) are recorded to 4 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 5101 WISCONSIN AVE NW recently?
The building files energy-benchmarking disclosures — 2 report years are matched to this parcel.
What does “Office (large)” mean for this parcel?
The Washington, DC roll classifies SSL 16660804 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 5101 WISCONSIN AVE NW?
The recorded owner on the Washington, DC assessment roll (current) is GARRISON ASSOCIATES LLC, THE LENKIN CO MGMT INC. Owner mailing address on file: 5101 WISCONSIN AVE NW FL 5, WASHINGTON, DC, 20016.
What companies have offices at 5101 WISCONSIN AVE NW?
6 active business locations at this building appear in Washington, DC public records, including THE WILKES COMPANY, LLC, SOMERSET DEVELOPMENT COMPANY, LLC., Modulus LLC, AQUILA REHAB, LENKIN COMPANY (THE). Public records under-count tenants that don't hold a local receipt or register the address.
How big is 5101 WISCONSIN AVE NW?
The Washington, DC roll records 102,638 sq ft of building area, a build year of 1976. It sits on a 17,480 sq ft lot.
What is the assessed value of 5101 WISCONSIN AVE NW?
$10,874,751 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
What is the SSL for 5101 WISCONSIN AVE NW?
SSL 16660804, site address 5101 WISCONSIN AVE NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 5101 WISCONSIN AVE 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.
Working with Washington office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
Dataset updated . Source: Washington, DC assessment roll, SSL 16660804.
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, “5101 WISCONSIN AVE NW, Washington, DC (SSL 16660804)”, https://buildingcensus.com/offices/dc/office-building-9c61f151 (data as of September 20, 2026).