1050 1ST ST NE
Office (large) · Washington · 20002
At a glance
1050 1ST ST NE in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 06740854. The roll records 341,600 sq ft of building area, a 2014 build year and an assessed value of $95,910,550. It last sold for $147,012,388 in Jan 2018.
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.
Federal lease inventory — actual rent paid
Leases on public record
| Lease | Rentable sq ft | Annual rent | $/sq ft | Term | Options left |
|---|---|---|---|---|---|
| LDC00247 | 99,677 | $4,942,794 | $49.59 | Dec 2017 → Nov 2032 | — |
From the General Services Administration's monthly lease inventory: the rent the federal government actually pays, the square feet behind it, the dates, and the renewal options remaining. A fully serviced lease includes services and utilities, so it is not comparable to a net rent. This is one tenant, not the market. Federal space is often fitted for a specific agency and leased on government terms, so treat it as a real, checkable data point rather than an asking rent for the building.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Jan 2018 | $147,012,388 | 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 — 0 matched business locations
Tenants & business locations
No active business locations at this address appear in the public records ingested so far. That is a statement about the records, not the building: tenants without a county business-tax receipt or a Florida registration at this address are invisible to public data.
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 06740854 |
| Site address | 1050 1ST ST NE |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 341,600 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 29,606 sq ft |
| Year built | 2014 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $95,910,550 |
Recorded owner (assessment roll)
SENTINEL SQUARE HANA OW L L C
Owner mailing address: 2101 ROSECRANS AVE STE 3270, EL SEGUNDO, CA, 90245
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
- 1050 1ST ST NE
- City
- Washington
- ZIP
- 20002
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1050 1ST ST NE compare with other Washington office buildings?
At 341,600 sq ft, 1050 1ST ST NE 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 $281 per square foot of building area, against $370 across all office floor area on the roll.
The last recorded sale priced it at $430 per square foot.
Does the owner of 1050 1ST ST NE hold other Washington office property?
2 Washington office properties (2 parcels, 1.2M 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 1050 1ST ST NE recently?
1 recorded transfer is on file for this parcel, the latest dated Jan 2018.
The federal government leases space here: 1 active lease in the GSA inventory, the latest expiring Nov 2032.
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 06740854 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 1050 1ST ST NE?
The recorded owner on the Washington, DC assessment roll (current) is SENTINEL SQUARE HANA OW L L C. Owner mailing address on file: 2101 ROSECRANS AVE STE 3270, EL SEGUNDO, CA, 90245.
What companies have offices at 1050 1ST ST NE?
No business locations at this building appear in the public records ingested so far — no licence, tax or registry record currently lists this address; that is a gap in the record, not proof the building is empty.
How big is 1050 1ST ST NE?
The Washington, DC roll records 341,600 sq ft of building area, a build year of 2014. It sits on a 29,606 sq ft lot.
What is the assessed value of 1050 1ST ST NE?
$95,910,550 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
When did 1050 1ST ST NE last sell?
The last recorded transfer was in Jan 2018 for $147,012,388 ($430 per square foot).
What is the SSL for 1050 1ST ST NE?
SSL 06740854, site address 1050 1ST ST NE, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 1050 1ST ST NE
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.
- U.S. General Services Administration — lease inventory — Active federal leases published monthly: annual rent actually paid, rentable square feet, effective and expiration dates, termination right, renewal options remaining and the lessor's name.
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 06740854.
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, “1050 1ST ST NE, Washington, DC (SSL 06740854)”, https://buildingcensus.com/offices/dc/office-building-24627782 (data as of September 20, 2026).