1025 VERMONT VENTURE OWNER LLC
10 office properties in Washington, DC recorded to 10 owner entities mailing to 601 13TH ST NW STE 300N, WASHINGTON, DC. shared mailing address
At a glance
1025 VERMONT VENTURE OWNER LLC is recorded as the owner of 10 office properties (10 parcels) in Washington, DC, totalling 2M sq ft of building area with $859.5M of assessed value. The holdings sit in 10 owner entities that share one tax-bill mailing address in WASHINGTON, DC — evidence of common ownership, not proof of it.
County assessment roll
Properties
| Building | Submarket | Sq ft | Assessed | Last sold | Tenants |
|---|---|---|---|---|---|
| 601 13TH ST NW | Washington | 678.6K | $290.6M | — | 23 |
| 900 7TH ST NW | Washington | 300.2K | $129.7M | — | 4 |
| 1700 PENNSYLVANIA AVE NW | Washington | 244.6K | $79.5M | — | 3 |
| 1200 17TH ST NW | Washington | 175.4K | $120.9M | — | 3 |
| 1025 VERMONT AVE NW | Washington | 171.4K | $30.1M | $48,500,000 · Dec 2018 | 7 |
| 2100 L ST NW | Washington | 161.5K | $101.2M | — | 4 |
| 1121 14TH ST NW | Washington | 112.8K | $16.2M | — | 4 |
| 1101 16TH ST NW | Washington | 102K | $61.5M | — | 2 |
| 2519 CONNECTICUT AVE NW | Washington | 8.3K | $8.3M | — | 0 |
| 1050 21ST ST NW | Washington | — | $21.5M | — | 1 |
Names on the deeds
Owner entities at this address
- S KANN SONS COMPANY
- IBEW HEADQUARTERS BUILDING LLC
- THE MILLS BUILDING ASSOCIATES LLC
- 1200 17TH STREET INVESTORS LLC
- 1025 VERMONT VENTURE OWNER LLC
- 2100 HOLDINGS LLC
- SOCIETY OF NEUROSCIENCE
- 16TH STREET INVESTORS LLC
- AMERICAN ASSOC HOMES & SERVICES AGING INC
- DISTRICT OF COLUMBIA
How this group was built. These entities share a mailing address but not a name root. That often means one sponsor, and can also mean a shared law firm, accountant or tax servicer.The county records an owner and a mailing address for every parcel; this page collects the office parcels whose owners mail to the same address, and counts buildings rather than parcels using the county's own condo-to-building link. Lease terms, rents and the identity of a manager acting for the owner are not public records and are not shown.
Where are 1025 VERMONT VENTURE OWNER LLC's office buildings?
All 10 properties are in Washington.
The largest is 601 13TH ST NW in Washington at 678.6K sq ft.
Recorded build years run from 1964 to 2020.
How large is this portfolio within Washington's office market?
Its 2M sq ft is 0.92% of the 212.1M sq ft of office building area on the Washington, DC roll.
Its $859.5M of assessed value is 1.09% of the metro's office total.
It holds 10 of the metro's 1,761 office buildings.
1 of its parcels carry a recorded sale price; the most recent was 1025 VERMONT AVE NW in Dec 2018 for $48,500,000.
Frequently asked questions
How many office buildings does 1025 VERMONT VENTURE OWNER LLC own in Washington?
10 office properties (10 parcels) on the Washington, DC roll, counted by building rather than by condo parcel.
What is 1025 VERMONT VENTURE OWNER LLC's largest office building?
601 13TH ST NW, Washington — 678.6K sq ft, assessed at $290.6M.
What are 1025 VERMONT VENTURE OWNER LLC's office properties worth?
Their combined assessed value on the current Washington, DC roll is $859,537,741. Assessed values are taxable-roll figures, not market prices.
Are these properties owned by one company?
These entities share a mailing address but not a name root. That often means one sponsor, and can also mean a shared law firm, accountant or tax servicer. 10 owner entities share the mailing address. It is evidence of common ownership, not proof of it.
When did one of 1025 VERMONT VENTURE OWNER LLC's Washington office properties last change hands?
The most recent recorded transfer among these parcels is 1025 VERMONT AVE NW, Dec 2018, for $48,500,000.
Related
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.
Dataset updated . Derived from public data sources.
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, “1025 VERMONT VENTURE OWNER LLC — Washington office property holdings”, https://buildingcensus.com/offices/dc/owners/1025-vermont-venture-owner-llc-fd4b37 (data as of September 20, 2026).