1401 I ST NW
Office (large) · Washington · 20005
At a glance
1401 I ST NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 02180077. The roll records 315,944 sq ft of building area, a 1968 build year and an assessed value of $108,841,070. It last sold for $183,910,000 in Jul 2015. 2 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.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Jul 2015 | $183,910,000 | not rated | County 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 — 2 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| ROBERT HALF Inc. | — | Nov 2025 | DC business licence | folio match · high |
| PROTIVITI GOVERNMENT SERVICES INC. | — | May 2025 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 02180077 |
| Site address | 1401 I ST NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 315,944 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 22,332 sq ft |
| Year built | 1968 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $108,841,070 |
Recorded owner (assessment roll)
1401 EYE HOLDINGS LLC
CUSHMAN & WAKEFIELD
Owner mailing address: 1401 I ST NW STE 515, WASHINGTON, DC, 20005
Location
- Address
- 1401 I ST NW
- City
- Washington
- ZIP
- 20005
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1401 I ST NW compare with other Washington office buildings?
At 315,944 sq ft, 1401 I ST NW is about 3 times 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 $344 per square foot of building area, against $370 across all office floor area on the roll.
The last recorded sale priced it at $582 per square foot.
What has happened at 1401 I ST NW recently?
1 recorded transfer is on file for this parcel, the latest dated Jul 2015.
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 02180077 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 1401 I ST NW?
The recorded owner on the Washington, DC assessment roll (current) is 1401 EYE HOLDINGS LLC, CUSHMAN & WAKEFIELD. Owner mailing address on file: 1401 I ST NW STE 515, WASHINGTON, DC, 20005.
What companies have offices at 1401 I ST NW?
2 active business locations at this building appear in Washington, DC public records, including ROBERT HALF Inc., PROTIVITI GOVERNMENT SERVICES INC.. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1401 I ST NW?
The Washington, DC roll records 315,944 sq ft of building area, a build year of 1968. It sits on a 22,332 sq ft lot.
What is the assessed value of 1401 I ST NW?
$108,841,070 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
When did 1401 I ST NW last sell?
The last recorded transfer was in Jul 2015 for $183,910,000 ($582 per square foot).
What is the SSL for 1401 I ST NW?
SSL 02180077, site address 1401 I ST NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 1401 I 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 02180077.
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, “1401 I ST NW, Washington, DC (SSL 02180077)”, https://buildingcensus.com/offices/dc/office-building-14f5c75d (data as of September 20, 2026).