1100 1ST ST NE
Office (large) · Washington · 20002
At a glance
1100 1ST ST NE in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 06730847. The roll records 360,000 sq ft of building area, a 2009 build year and an assessed value of $125,397,520. It last sold for $217,500,000 in Sep 2016. 3 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 3 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.
Federal lease inventory — actual rent paid
Leases on public record
| Lease | Rentable sq ft | Annual rent | $/sq ft | Term | Options left |
|---|---|---|---|---|---|
| LDC02235 | 61,739 | $3,100,383 | $50.22 | Jun 2011 → Aug 2026 | — |
| LDC02245 | 8,698 | $431,122 | $49.57 | Jul 2011 → Jun 2026 | — |
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 |
|---|---|---|---|---|
| Sep 2016 | $217,500,000 | 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 — 3 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| Beyond the Pond | — | Jul 2025 | DC business licence | folio match · high |
| Imperial Parking (Us) LLCvia Imperial Parking US LLC | — | Dec 2024 | DC business licence | folio match · high |
| Union Plus | — | Jan 2023 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 06730847 |
| Site address | 1100 1ST ST NE |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 360,000 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 37,572 sq ft |
| Year built | 2009 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $125,397,520 |
Recorded owner (assessment roll)
UNIZO REAL ESTATE DC FOUR LLC
Owner mailing address: 1100 I ST NE, WASHINGTON, DC, 20002
Location
- Address
- 1100 1ST ST NE
- City
- Washington
- ZIP
- 20002
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1100 1ST ST NE compare with other Washington office buildings?
At 360,000 sq ft, 1100 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 $348 per square foot of building area, against $370 across all office floor area on the roll.
The last recorded sale priced it at $604 per square foot.
What has happened at 1100 1ST ST NE recently?
1 recorded transfer is on file for this parcel, the latest dated Sep 2016.
The federal government leases space here: 2 active leases in the GSA inventory, the latest expiring Aug 2026.
The building files energy-benchmarking disclosures — 3 report years are matched to this parcel.
What does “Office (large)” mean for this parcel?
The Washington, DC roll classifies SSL 06730847 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 1100 1ST ST NE?
The recorded owner on the Washington, DC assessment roll (current) is UNIZO REAL ESTATE DC FOUR LLC. Owner mailing address on file: 1100 I ST NE, WASHINGTON, DC, 20002.
What companies have offices at 1100 1ST ST NE?
3 active business locations at this building appear in Washington, DC public records, including Beyond the Pond, Imperial Parking (Us) LLC, Union Plus. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1100 1ST ST NE?
The Washington, DC roll records 360,000 sq ft of building area, a build year of 2009. It sits on a 37,572 sq ft lot.
What is the assessed value of 1100 1ST ST NE?
$125,397,520 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
When did 1100 1ST ST NE last sell?
The last recorded transfer was in Sep 2016 for $217,500,000 ($604 per square foot).
What is the SSL for 1100 1ST ST NE?
SSL 06730847, site address 1100 1ST ST NE, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 1100 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 06730847.
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, “1100 1ST ST NE, Washington, DC (SSL 06730847)”, https://buildingcensus.com/offices/dc/office-building-8aab4c5f (data as of September 20, 2026).