Gaithersburg, Maryland Zoning Map
Zoning, overlays and hazards on every parcel - and an answer to what the code actually lets you build. Compiled from current zoning data for all 19 districts.
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Zoning
- District code & full name
- Parcel boundary & APN
- All 19 districts mapped
Building controls
- Front setback
- Side setback
- Rear setback
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Gaithersburg, Maryland Zoning Districts: What Do They Mean?
Zoning districts are areas regulated by specific laws that determine land use, building types, and development rules. Each district below shows its zone type. Gaithersburg's ordinance does not state permitted uses as citywide flags, so they are read from each district's own table rather than summarised here.
| Zone Code | Category | Area | Details |
|---|---|---|---|
MXD Mixed Use Development | - | 1,769.6 ac | Standards & uses → |
R-A Low Density Residential | - | 757.9 ac | Standards & uses → |
R-90 Medium Density Residential | - | 642.8 ac | Standards & uses → |
R-18 Medium Density Planned Residential | - | 314.1 ac | Standards & uses → |
Showing 4 of 19 districts
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Each one runs against the live Gaithersburg dataset and returns the districts, standards and approvals involved.
What does MXD actually permit?
The full standards for one district, read straight from the source.
Run it →How is Gaithersburg zoned?
Gaithersburg regulates land through 19 zoning districts, and Mixed Use Development is the largest by a wide margin at roughly 1,770 acres, more than twice the next largest classification.
A city where the mixed use district outranks every residential and commercial category has committed to mixing as its primary development framework rather than as an occasional exception. That is the single most important fact for anyone evaluating a site here.
The residential system uses a mix of conventions. R-A covers low density at roughly 758 acres, while R-90, R-20 and R-6 state a lot size or density premise, and R-90C marks a cluster version of the R-90 district. RP-T covers medium density planned residential and R-18 medium density planned residential as well, so plan-based residential is woven through the ladder.
Two Urban Employment districts, numbered 1 and 2, cover roughly 170 acres between them, naming employment intensity explicitly.
A Corridor Development district covers roughly 136 acres, giving the city a corridor-specific instrument.
The buffer districts are unusual: a Commercial Buffer at roughly ten acres and a Residential Buffer at about seven. Zoning buffers as their own districts rather than as setback requirements makes the transition between uses explicit on the map. This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
Gaithersburg zoning: frequently asked questions
How dominant is mixed use zoning in Gaithersburg?
Mixed Use Development covers roughly 1,770 acres, more than twice the next largest classification. The city has committed to mixing as its primary development framework rather than as an occasional exception.
What are the buffer districts?
A Commercial Buffer at roughly ten acres and a Residential Buffer at about seven. Zoning buffers as their own districts rather than as setback requirements makes the transition between uses explicit on the map.
What are the Urban Employment districts?
Two districts numbered 1 and 2, covering roughly 170 acres between them. They name employment intensity explicitly rather than folding it into the industrial or commercial categories.
How is residential zoning organised?
Through a mix of conventions: R-A for low density, R-90, R-20 and R-6 stating a lot size or density premise, a cluster version of R-90, and two planned residential districts at medium density.
What is the Corridor Development district?
A district covering roughly 136 acres that gives the city a corridor-specific instrument rather than applying general commercial designations along its main routes.
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Zoning data is pre-development intelligence, not legal advice. Verify with the Gaithersburg planning department before acquisition or design.