SQUARE 452 TOWNHOUSE LLC
5 office properties in Washington, DC recorded to 4 owner entities mailing to 1725 DESALES ST NW STE 900, WASHINGTON, DC. likely one owner
At a glance
SQUARE 452 TOWNHOUSE LLC is recorded as the owner of 5 office properties (5 parcels) in Washington, DC, totalling 388.3K sq ft of building area with $418.7M of assessed value. The holdings sit in 4 owner entities that share one tax-bill mailing address in WASHINGTON, DC — and a name root, which is how a single sponsor usually holds property.
County assessment roll
Properties
| Building | Submarket | Sq ft | Assessed | Last sold | Tenants |
|---|---|---|---|---|---|
| 600 MASSACHUSETTS AVE NW owner on site | Washington | 379.9K | $249.5M | — | 13 |
| 444 8TH ST NW # C2 owner on site | Washington | 4.2K | $785.9K | — | 1 |
| 609 I ST NW owner on site | Washington | 3.1K | $699.6K | $638,124 · Jul 2017 | 1 |
| 609 I ST NW | Washington | 1K | $144.9K | $638,124 · Jul 2017 | 0 |
| 401 9TH ST NW | Washington | — | $167.6M | — | 2 |
Names on the deeds
Owner entities at this address
- SQUARE 452 LLC
- LEXINGTON 407 LLC
- SQUARE 452 TOWNHOUSE LLC
- SQUARE 407 LIMITED PARTNERSHIP
How this group was built. These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building.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. 3of these properties also carry a business-tax receipt in the owner's own name, which is the public record's way of showing an owner-occupier rather than a landlord. Lease terms, rents and the identity of a manager acting for the owner are not public records and are not shown.
Where are SQUARE 452 TOWNHOUSE LLC's office buildings?
All 5 properties are in Washington.
The largest is 600 MASSACHUSETTS AVE NW in Washington at 379.9K sq ft.
Recorded build years run from 1890 to 2016.
How large is this portfolio within Washington's office market?
Its 388.3K sq ft is 0.18% of the 212.1M sq ft of office building area on the Washington, DC roll.
Its $418.7M of assessed value is 0.53% of the metro's office total.
It holds 5 of the metro's 1,761 office buildings.
2 of its parcels carry a recorded sale price; the most recent was 609 I ST NW in Jul 2017 for $638,124.
3 parcels also carry a business-tax receipt in the owner's own name — an owner-occupier rather than a landlord.
Frequently asked questions
How many office buildings does SQUARE 452 TOWNHOUSE LLC own in Washington?
5 office properties (5 parcels) on the Washington, DC roll, counted by building rather than by condo parcel.
What is SQUARE 452 TOWNHOUSE LLC's largest office building?
600 MASSACHUSETTS AVE NW, Washington — 379.9K sq ft, assessed at $249.5M.
What are SQUARE 452 TOWNHOUSE LLC's office properties worth?
Their combined assessed value on the current Washington, DC roll is $418,664,780. Assessed values are taxable-roll figures, not market prices.
Are these properties owned by one company?
These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building. 4 owner entities share the mailing address. It is evidence of common ownership, not proof of it.
When did one of SQUARE 452 TOWNHOUSE LLC's Washington office properties last change hands?
The most recent recorded transfer among these parcels is 609 I ST NW, Jul 2017, for $638,124.
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, “SQUARE 452 TOWNHOUSE LLC — Washington office property holdings”, https://buildingcensus.com/offices/dc/owners/square-452-townhouse-llc-01a8f6 (data as of September 20, 2026).