1730 RHODE ISLAND AVE NW
Office (large) · Washington · 20036
At a glance
1730 RHODE ISLAND AVE NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 01600035. The roll records 244,818 sq ft of building area, a 1966 build year and an assessed value of $38,318,860. 17 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 2 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.
Public record — 17 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| Jones, Maresca & McElwaney PC | — | Dec 2026 | DC business licence | folio match · high |
| N/A | 206 | Sep 2026 | DC business licence | folio match · high |
| WASHINGTON RESEARCH & ANALYSIS LLC. | 715 | Sep 2026 | DC business licence | folio match · high |
| AFTER-SCHOOL ALL-STARS | — | Jul 2026 | DC business licence | folio match · high |
| Lutheran Social Services of the National Capital Area, Incorporated | — | Jul 2026 | DC business licence | folio match · high |
| Premier Consultants International Inc. | — | May 2026 | DC business licence | folio match · high |
| CITY MARKET LLC. | 512 | Aug 2025 | DC business licence | folio match · high |
| Bourbon Foods USA Corporation | 806 | Aug 2025 | DC business licence | folio match · high |
| SEARCH FOR COMMON GROUND | 1101 | Jul 2025 | DC business licence | folio match · high |
| SUSHI SNOB | — | May 2025 | DC business licence | folio match · high |
| U.S. PRINTING AND COPYING | — | Jan 2025 | DC business licence | folio match · high |
| COLONIAL PARKING INC. | 100 | Jan 2025 | DC business licence | folio match · high |
| ECOAMERICA | — | Jan 2025 | DC business licence | folio match · high |
| USET SOVEREIGNTY PROTECTION FUND, INC. | — | Nov 2024 | DC business licence | folio match · high |
| MSI-US | — | Aug 2024 | DC business licence | folio match · high |
| TEMPLE GROUP | — | Jan 2024 | DC business licence | folio match · high |
| SZ PM Consultants, | — | Dec 2023 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 01600035 |
| Site address | 1730 RHODE ISLAND AVE NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 244,818 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 16,230 sq ft |
| Year built | 1966 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $38,318,860 |
Recorded owner (assessment roll)
MAIZELS FAMILY LIMITED LIABILITY LIMITED PARTNERSHIP
Owner mailing address: PO BOX 84150, GAITHERSBURG, MD, 20883
Location
- Address
- 1730 RHODE ISLAND AVE NW
- City
- Washington
- ZIP
- 20036
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1730 RHODE ISLAND AVE NW compare with other Washington office buildings?
At 244,818 sq ft, 1730 RHODE ISLAND AVE NW is about twice 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 $157 per square foot of building area, against $370 across all office floor area on the roll.
What has happened at 1730 RHODE ISLAND AVE NW recently?
The building files energy-benchmarking disclosures — 2 report years are matched to this parcel.
What does “Office (large)” mean for this parcel?
The Washington, DC roll classifies SSL 01600035 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 1730 RHODE ISLAND AVE NW?
The recorded owner on the Washington, DC assessment roll (current) is MAIZELS FAMILY LIMITED LIABILITY LIMITED PARTNERSHIP. Owner mailing address on file: PO BOX 84150, GAITHERSBURG, MD, 20883.
What companies have offices at 1730 RHODE ISLAND AVE NW?
17 active business locations at this building appear in Washington, DC public records, including Jones, Maresca & McElwaney PC, N/A, WASHINGTON RESEARCH & ANALYSIS LLC., AFTER-SCHOOL ALL-STARS, Lutheran Social Services of the National Capital Area, Incorporated. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1730 RHODE ISLAND AVE NW?
The Washington, DC roll records 244,818 sq ft of building area, a build year of 1966. It sits on a 16,230 sq ft lot.
What is the assessed value of 1730 RHODE ISLAND AVE NW?
$38,318,860 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
What is the SSL for 1730 RHODE ISLAND AVE NW?
SSL 01600035, site address 1730 RHODE ISLAND AVE NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 1730 RHODE ISLAND AVE NW
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.
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Dataset updated . Source: Washington, DC assessment roll, SSL 01600035.
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, “1730 RHODE ISLAND AVE NW, Washington, DC (SSL 01600035)”, https://buildingcensus.com/offices/dc/office-building-51ce7d3d (data as of September 20, 2026).