4301 50TH ST NW
Office (large) · Washington · 20016
The building's own benchmarking filing
Energy performance
From the building's own filing under the City of Miami'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.
Public record — 9 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| N/A | — | Jan 2027 | dc_dlcp | folio match · high |
| DC Surgical Arts Center for Oral and Facial Cosmetic Surgery | — | Aug 2026 | dc_dlcp | folio match · high |
| JR Communications LLC | — | Mar 2026 | dc_dlcp | folio match · high |
| service4u llc | — | Jul 2025 | dc_dlcp | folio match · high |
| Building Blocks EI | — | Feb 2025 | dc_dlcp | folio match · high |
| WHITESTONE CONSTRUCTION GROUP LLC | 300 | Feb 2025 | dc_dlcp | folio match · high |
| SOCIALCARERX | — | Jan 2025 | dc_dlcp | folio match · high |
| Secure Right Systems | — | Nov 2024 | dc_dlcp | folio match · high |
| Sally Steponkus Interiors, Inc. | — | Apr 2023 | dc_dlcp | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 14670885 |
| Site address | 4301 50TH ST NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 15,345 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 14,255 sq ft |
| Year built | 1990 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $2,587,040 |
Recorded owner (assessment roll)
WC AND AN MILLER DEVELOPMENT COMPANY
Owner mailing address: 11921 ROCKVILLE PIKE STE 200, ROCKVILLE, MD, 20852
4 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
- 4301 50TH ST NW
- City
- Washington
- ZIP
- 20016
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
Frequently asked questions
Who owns 4301 50TH ST NW?
The recorded owner on the Washington, DC assessment roll (current) is WC AND AN MILLER DEVELOPMENT COMPANY. Owner mailing address on file: 11921 ROCKVILLE PIKE STE 200, ROCKVILLE, MD, 20852.
What companies have offices at 4301 50TH ST NW?
9 active business locations at this building appear in Washington, DC public records, including N/A, DC Surgical Arts Center for Oral and Facial Cosmetic Surgery, JR Communications LLC, service4u llc, Building Blocks EI. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 4301 50TH ST NW?
The county assessment roll records 15,345 sq ft of building area, built in 1990, on a 14,255 sq ft lot, with a current assessed value of $2,587,040.
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Miami-Dade County Property Appraiser — assessment roll — Parcel identity, site address, recorded owner, use code, areas, year built and assessed values, via the county's public GIS services (MD_LandInformation, PaGis layer).
- Miami-Dade County Local Business Tax roll — Business-tax receipts: business name, premises address (incl. suite/floor), account status and start date, via the county's public GIS services.
- Florida Division of Corporations (Sunbiz) — corporate data file — Registered entities: document number, status, filing date, registered agent and principal address, from the state's public quarterly data file.
- Miami BE305 building-energy benchmarking disclosures — What the building reported about its own performance: energy intensity, an ENERGY STAR score, reported emissions and water use, under the City of Miami's benchmarking ordinance.
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 14670885.