511 N WASHINGTON ST
Office · Baltimore · 21205
At a glance
511 N WASHINGTON ST in Baltimore, MD is listed on the Baltimore property roll as “Office”, block-lot 1650005. The roll records a 1920 build year.
Baltimore assessment roll
Parcel record
| Field | Value |
|---|---|
| block-lot | 1650005 |
| Site address | 511 N WASHINGTON ST |
| Land use (DOR) | 3042 — Office |
| Building area (actual) | — |
| Floors / units / buildings | — / — / — |
| Lot size | — |
| Year built | 1920 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
JOHNS HOPKINS UNIVERSITY, THE
Owner mailing address: 3910 KESWICK RD, N-3100, 21211
11 Baltimore 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
- 511 N WASHINGTON ST
- City
- Baltimore
- ZIP
- 21205
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
Does the owner of 511 N WASHINGTON ST hold other Baltimore office property?
11 Baltimore office properties (11 parcels, 93.1K sq ft) are recorded to 2 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What does “Office” mean for this parcel?
The Baltimore roll classifies block-lot 1650005 as “Office” (use code 3042). 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 511 N WASHINGTON ST?
The recorded owner on the Baltimore assessment roll (current) is JOHNS HOPKINS UNIVERSITY, THE. Owner mailing address on file: 3910 KESWICK RD, N-3100, 21211.
How big is 511 N WASHINGTON ST?
The Baltimore roll records a build year of 1920.
What is the block-lot for 511 N WASHINGTON ST?
Block-lot 1650005, site address 511 N WASHINGTON ST, Baltimore. It is the key to look the parcel up in the Baltimore City real property layer (Baltimore).
More around 511 N WASHINGTON ST
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Baltimore — Baltimore City real property layer (owner names, mailing addresses, building areas, recorded sales with price). Maryland's statewide roll withholds owner names, so this is a city-limits build. No universal business roll, so no tenant layer.
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: Baltimore assessment roll, block-lot 1650005.
About this data
Source: Baltimore City real property layer (Baltimore), as published September 21, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “511 N WASHINGTON ST, Baltimore, MD (block-lot 1650005)”, https://buildingcensus.com/offices/baltimore/office-building-7c56d573 (data as of September 21, 2026).