Zoning Code Directory
Below are brief explanations of each zoning code used in Montgomery County. The full text of the Montgomery County Zoning Ordinance can be seen online by clicking here.
| RT-10.0 | Residential, Townhouse |
minimum
tract area of 20,000 sq.ft; ten dwellings per acre |
|---|---|---|
| RT-12.5 | Residential, Townhouse |
minimum
tract area of 20,000 sq.ft; twelve and one half dwellings
per acre |
| RT-15 | Residential, Townhouse |
minimum
tract area of 40,000 sq.ft; fifteen dwellings per acre |
| R-30 | Multiple-Family, Low Density Residential |
minimum
net lot area of 3,000 sq.ft for each dwelling |
| R-20 | Multiple-Family, Medium Density Residential |
minimum
net lot area of 2,000 sq.ft for each dwelling |
| R-10 | Multiple-Family, High Density Residential |
minimum
net lot area of 1,000 sq.ft for each dwelling |
| R-H | Multiple-Family, High-Rise Planned Residential |
minimum
net lot area of 1,000 sq.ft for each dwelling |
| RMX-1 | Residential-Mixed Use Development,Community Center |
|
| RMX-2 | Residential-Mixed Use Development,Speciality Center |
|
| RMX-2C | Residential-Mixed Use Development,Speciality Center,
Commercial Base |
|
| RMX-3 | Residential-Mixed Use Development, RegionalCenter |
|
| RMX-3C | Residential-Mixed Use Development, Regional Center,
Commercial Base |
|
| RMX-1/TDR | Residential-Mixed Use Community Center/Transferrable
Development Rights |
|
| RMX-2/TDR | Residential-Mixed Use Speciality Center/Transferrable
Development Rights |
|
| RMX-3/TDR | Residential-Mixed Use Regional Center/Transferrable
Development Rights |
|
| PD | Planned Development |
minimum
area to construct 50 or more dwelling units; density
range from 2-44 unuts per acre. |
| T-S | Town Sector |
minimum
tract area of fifteen hundred acres; Maximum population
density not to exceed 15 persons per acre,. |
| PNZ | Planned Neighborwood zoner |
maximum population density not to exceed 15 persons
per acre,. |
| PRC | Planned Retirement Comminunity |
minimum lot area of 750 acres, maximum of siz dellings
per acre in age restricted area; 10 dwellings per acre
non-age restricted area. |
| MXPR | Mixed Use Planned Residential |
minimum lot area of 20 acres;maximum of 44-75 dwellings
per acre |
| PCC | Planned Cultral Center |
minimum lot area of 5 acres |
| R-MH | Planned Mobile Home Development |
minimum lot area of 15 acres; maximum of seven dwellings
per acre |
| MXN | Mixed Use Neighborwood Zone |
minimum tract area of 20 acres; maximum gross floor
area ratio of 0.3 |
| TS-R | Transit Station, Residential |
maximum floor area ratio of 2.5 or 150 dwellings per
acre |
| TS-M | Transit Station, Mixed |
maximum floor area ratio of 3.0 |
| C-T | Commercial, Transitional |
|
| RURAL | Rural Zone |
minimum
lot area of five acres for each dwelling |
| RC | Rural Cluster Zone |
minimum
five acres for each dwelling; cluster option: minimum
lot area of 40,000 sq.ft |
| RNC | Rural Neighborwood Cluster |
minimum
5 acres for each dwelling; cluster required: minimum
net lot area of 25,000 sq.ft. optional cluster method
allows up to 1 dwelling per acre; minimum lot area of
4,000 sq.ft |
| LDRC | Low Density Rural Cluster |
minimum
5 acres for each dwelling; cluster option: minimum net
lot area of 40,000 sq.ft |
| RDT | Rural Density Transfer Zone |
minimum
25 acres for each dwelling; transfer option for TDR's:
minimum lot area of 40,000 sq.ft |
| RS | Rural Service Zone |
minimum
two acre lot |
| RE-2 | Residential, One-Family |
minimum lot area of two acres for each dwelling |
| RE-2C | Residential, One-Family |
minimum tract area of 50 acres; minimum lot area of
25,000 sq.ft, minimum 2 acres for each dwelling |
| RE-1 | Residential, One-Family |
minimum lot area of 40,000 sq.ft for each dwelling |
| R-200 | Residential, One-Family |
minimum lot area of 20,000 sq.ft for each dwelling |
| R-150 | Residential, One-Family |
minimum lot area of 10,500 sq.ft, average of 15,000
sq.ft for each dwelling |
| R-90 | Residential, One-Family |
minimum lot area of 9,000 sq.ft for each dwelling |
| R90 / OVERLAY | Residential, One-Family |
town of Garrett Park - only - Sec.59-C-18.11 Montgomery
County Code |
| R-60 | Residential, One-Family |
minimum lot area of 6,000 sq.ft for each dwelling |
| RE-2/TDR | Residential, Transferable Development Rights |
minimum lot area of 2 acres; transferable option: up
to 4 dwellings per acre |
| RE-2C/TDR | Residential, Transferable Development Rights |
minimum lot area of 25,000 sq.ft; transferable option:
up to 2 dwellings per acre |
| RE-1/TDR | Residential, Transferable Development Rights |
minimum lot area of 40,000 sq.ft; transferable option:
up to 2 dwellings per acre |
| R-200/TDR | Residential, Transferable Development Rights |
minimum lot area of 20.000 sq.ft; transferable option:
up to 11 dwellings per acre |
| R-150/TDR | Residential, Transferable Development Rights |
minimum lot area of 10.500 sq.ft; transferable option:
up to 3 dwellings per acre |
| R-90/TDR | Residential, Transferable Development Rights |
minimum lot area of 9,000 sq.ft; transferable option:
up to 9 dwellings per acre |
| R-60/TDR | Residential, Transferable Development Rights |
minimum lot area of 6,000 sq.ft; transferable option:
up to 15 dwellings per acre |
| R-40 | Residential, One-Family |
minimum lot area of 4,000 sq.ft for each dwelling |
| R-4PLEX | Residential, Fourplex |
minimum lot area of 4,000 sq.ft for each dwelling |
| RMH-200 | Residential, One-Family |
(mobile home option) minimum lot area of 20,000 sq.ft
for each dwelling |
| RT-6.0 | Residential, Townhouse |
minimum tract area of 20,000 sq.ft; six dwellings per
acre |
| RT-8.0 | Residential, Townhouse |
minimum
tract area of 20,000 sq ft; 8 dwellings per acre |
| O-M | Office Building,Moderate Intensity |
maximum
floor area ratio of 1.5 |
| C-O | Commercial, Office Building |
|
| C-P | Commercial, Office Park |
|
| C-1 | Convenience Commercial |
|
| C-2 | GeneralCommercial |
|
| C-2 / OVERLAY | C-2 / Overlay Zone |
Arlington
Road District Overlay Zone Sec.59-C-18.12 Montgomery
County Code |
| C-3 | Highway Commercial |
|
| C-4 | Limited Commercial |
|
| C-5 | Low Density, Office Commercial |
|
| C-6 | Low
Density, Regional Commercial |
|
| H-M | Hotel
- Motel |
minimum
lot area of two acres |
| C-INN | Country
INN Zone |
minimum
lot area of two acres |
| CBD-0.5 | Central
Business District 0.5 |
maximum
base floor area ratio of 0.5 |
| CBD-R1 | Central
Business District, Residential, 1.0 |
|
| CBD-R2 | Central
Business District, Residential, 2.0 |
|
| CBD-1 | Central
Business District 1.0 |
maximum
base floor area ratio of 1.0 |
| CBD-2 | Central
Business District 2.0 |
maximum
base floor area ratio of 2.0 |
| CBD-3 | Central
Business District 3.0 |
maximum
base floor area ratio of 3.0 |
| I-1 | light
Industrial |
|
| I-2 | Heavy Industrial |
|
| I-3 | Technology
& Business Park |
|
| I-4 | Low
Intensity, Light Industrial |
|
| R&D | Research
and Development |
|
| LSC | Life
Sciences Center |
maximum
base floor area ratio of 0.3 |
| TOM X-2 | ||
| TOM X-2 / TDR |
Date of last page update: March 10, 2008
