Is Rockville's zoning the same as Montgomery County's?

No. Rockville is an incorporated city within Montgomery County that maintains its own separate zoning ordinance and Planning Department, independent of the county's M-NCPPC-administered code that governs unincorporated areas.

How do I find the zoning for an address in Rockville, Maryland?

Use the city's GIS mapping portal or contact Rockville's Planning and Development Services department directly to confirm the applicable zoning district for a parcel.

Is Rockville rewriting its zoning ordinance?

Rockville periodically updates its zoning ordinance; developers should confirm current, in-force provisions with the Planning and Development Services department rather than relying on older code references.

Rockville, Maryland · city zoning districts · 14 districts

Rockville, MD zoning map & districts

Rockville is an incorporated city inside Montgomery County that maintains its own zoning code, administered by the city's Planning and Development Services department, independent of the county's M-NCPPC-administered ordinance. Its development pattern spans a dense, transit-served Town Center/Metro station area, established residential neighborhoods, and significant office and biotech/life-sciences employment clusters.

The code Rockville Zoning Ordinance

Rockville zoning map

The City of Rockville's Planning and Development Services department maintains the zoning ordinance and map; parcel-level zoning can be confirmed through the city's GIS portal or directly with the department.

There is no link to the official map here yet — confirm current district boundaries directly with the Rockville planning or zoning department.

A published summary is never the authority. The adopted ordinance and the city's official zoning map govern, and both change — verify the district and every standard on your parcel before you rely on it.

How zoning works in Rockville

Because Rockville's code operates separately from Montgomery County's, developers should not assume that district names or standards from the surrounding county apply — confirm current zoning directly with the city, particularly for parcels near the Rockville Town Center and Metro station where redevelopment activity is most active.

Rockville zoning districts by family

The 14 district codes below are the ones that decide most projects in Rockville, grouped by what they are for rather than by the order the ordinance prints them.

Key districts in the Rockville Zoning Ordinance — a curated reference, not the exhaustive list. Confirm against the current adopted code.
Code	District	What it is for
Residential 7 districts
R-400	Residential Estate
R-200	Suburban Residential
R-90	Single Unit Detached Dwelling, Restricted Residential
R-60	Single Unit Detached Dwelling, Residential
R-40	Single Unit Semi-Detached Dwelling, Residential
RMD-10	Residential Medium Density 10
RMD-25	Residential Medium Density 25
Mixed-use 5 districts
MXNC	Mixed-Use Neighborhood Commercial
MXT	Mixed-Use Transition
MXCD	Mixed-Use Corridor District
MXC	Mixed-Use Commercial
MXE	Mixed-Use Employment
Industrial 1 district
IL	Light Industrial
Special purpose 1 district
PARK	Park Zone

Rockville zoning — common questions

Is Rockville's zoning the same as Montgomery County's?: No. Rockville is an incorporated city within Montgomery County that maintains its own separate zoning ordinance and Planning Department, independent of the county's M-NCPPC-administered code that governs unincorporated areas.
How do I find the zoning for an address in Rockville, Maryland?: Use the city's GIS mapping portal or contact Rockville's Planning and Development Services department directly to confirm the applicable zoning district for a parcel.
Is Rockville rewriting its zoning ordinance?: Rockville periodically updates its zoning ordinance; developers should confirm current, in-force provisions with the Planning and Development Services department rather than relying on older code references.

Working in Maryland? Get on the list.

The parcel layer lands in the order demand does. Illinois went first because that's where the deals were; the next state is decided by who tells us what they're trying to underwrite. Tell us where you're building and what you wanted to run — you'll hear from us when Maryland opens, and sooner if we need a test parcel.

Keep reading

← Maryland zoning — who holds the zoning power in Maryland, under which enabling statute, and the reforms that override local rules.

Other Maryland cities

The zoning reference → — every state, plus city-level district guides like this one.

Rockville zoning summaries on this page are provided for information, not legal advice. Confirm every project against the current adopted code for the jurisdiction.