5. Floating Zone Requirements
Master Plan Recommended Floating Zone | Equivalent Floating Zone |
Master Plan Recommended Floating Zone | Equivalent Floating Zone |
C-Inn | None (See Use Table under Section 3.1.6) |
R-MH | RDF |
RT-6.0, RT-8.0, RT-10.0, RT-12.5, RT-15.0 | TF |
R-H, R-4plex | AF |
P-D | AF or CRNF |
C-T | CRNF |
MXN, MXPD, PNZ, PRC, T-S | CRTF |
H-M, TS-M, TS-R | CRF |
C-3, PCC | GRF |
C-P, I-3, O-M | EOFF |
RS | IMF |
Category | Prerequisite Choices |
Category | Prerequisite Choices |
Transit & Infrastructure | At least 75% of the site is within ¼ mile of a Level 3, ½ mile of a Level 2, or ¾ mile of a Level 1 transit station/stop. |
The site has frontage on and vehicular, bicycle, and pedestrian access to at least 2 roads, at least one of which is nonresidential. | |
The site is served by existing water and sewer infrastructure that will not require either an upgrade to the service line or installation of a pump station due to the proposed development. | |
All signalized intersections within ¼ mile of the site boundary are operating below the applicable congestion standard. | |
The project is age-restricted or senior housing, or if proposing development that may generate students, the site must not be in an area that is under moratorium due to school capacity or result in a school utilization rate greater than 120% because of the proposed development. For any site within 2 school clusters, only the portions of the site that satisfy this requirement can proceed. | |
Vicinity & Facilities | The site is in a transitional location between property in an existing Residential Multi-Unit, Residential Townhouse, or non-Residential zone and property in a Residential Multi-Unit, Residential Townhouse, or Residential Detached zone. |
The site is adjacent to a bicyclist route that provides access to commercial services within 3 miles. | |
The site is adjacent to a route that provides access to an existing or master-planned school within ½ mile. | |
The site is adjacent to a pedestrian route that provides access to existing public park and recreation facilities that satisfy a minimum of 30% of the recreation demand under the Planning Board’s Recreation Guidelines, as amended, within ¾ mile. | |
The site is adjacent to a pedestrian route that provides access to an existing grocery store or County-permitted farmer’s market within ¼ mile. | |
Environment & Resources | The limits of disturbance for the development will not overlap any stream, floodplain, wetland, or environmental buffer or any slopes greater than 25% or slopes greater than 15% where erodible soils are present. |
The site does not contain any forest or, if forest is present, the limits of disturbance for the development will not reduce the forest cover to less than an area of 10,000 square feet and width of 35 feet at any point. | |
The site does not contain any rare, threatened, or endangered species or critical habitats listed by the Maryland Department of Natural Resources. | |
The site is on land containing contaminated soils and is developed in conjunction with an environmental Voluntary Cleanup Program under the Maryland Department of Environmental Protection. | |
The site is currently developed with more than 75% impermeable surfaces, including paving and roofed-structures, and does not currently provide stormwater management meeting the standards applicable on the date of filing. | |
Floating Zone Category | Approved Density | All Uses Allowed |
Floating Zone Category | Approved Density | All Uses Allowed |
RDF | < 3 units/acre and < 150 total units | R-200 |
< 3 units/acre and ≥ 150 total units | R-200, CRN | |
≥ 3 units/acre and < 150 total units | R-90, R-60, R-40 | |
≥ 3 units/acre and ≥ 150 total units | R-90, R-60, R-40, CRN | |
TF | < 12 units/acre and < 150 total units | TLD |
< 12 units/acre and ≥ 150 total units | TLD, CRN | |
≥ 12 units/acre and < 150 total units | TMD, THD | |
≥ 12 units/acre and ≥ 150 total units | TMD, THD, CRN | |
AF | < 20 units/acre and < 150 total units | R-30 |
< 20 units/acre and ≥ 150 total units | R-30, CRN | |
≥ 20 units/acre and < 150 total units | R-20, R-10, CRN | |
≥ 20 units/acre and ≥ 150 total units | R-20, R-10, CRT | |
Detached House or a Building for a Cultural Institution, Religious Assembly, Public Use or conditional use allowed in the zone | Duplex | Townhouse | Apartment Building | Multi Use Building | General Building | |
Zone | ||||||
RDF | A | S | S | |||
TF | A | A | A | S | S | |
AF | A | A | A | A | S | S |
Pre-Existing Euclidean Zone | Base Lot/Site Size | Base Density in Units per Acre | Maximum Allowed Density in Units per Acre | ||
Less than 3 times the base lot/site size | 3 to <6 times the base lot/site size | At least 6 times the base lot/site size | |||
Pre-Existing Euclidean Zone | Base Lot/Site Size | Base Density in Units per Acre | Maximum Allowed Density in Units per Acre | ||
Less than 3 times the base lot/site size | 3 to <6 times the base lot/site size | At least 6 times the base lot/site size | |||
RE-2, RE-2C | 2 acres | 0.50 | 0.50 | 0.75 | 1.00 |
RE-1 | 40,000 SF | 1.09 | 1.09 | 1.63 | 2.18 |
R-200 | 20,000 SF | 2.18 | 2.18 | 3.27 | 4.36 |
R-90 | 9,000 SF | 4.84 | 4.84 | 7.26 | 12.00 |
R-60 | 6,000 SF | 7.26 | 7.26 | 10.89 | 14.52 |
R-40 | 4,000 SF | 10.89 | 10.89 | 16.33 | 21.78 |
TLD | 20,000 SF | 9.00 | 9.00 | 13.50 | 18.00 |
TMD | 20,000 SF | 12.00 | 12.00 | 18.00 | 24.00 |
THD | 40,000 SF | 15.00 | 15.00 | 22.50 | 30.00 |
R-30 | 12,000 SF | 14.50 | 14.50 | 21.75 | 29.00 |
R-20 | 16,000 SF | 21.70 | 21.70 | 32.55 | 43.40 |
R-10 | 20,000 SF | 43.50 | 43.50 | 65.25 | 87.00 |
Pre-Existing Euclidean Zone Total FAR | Maximum Allowed Density in Units per Acre | ||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | |
Pre-Existing Euclidean Zone Total FAR | Maximum Allowed Density in Units per Acre | ||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | |
≤ 0.5 | 18 | 24 | 31 |
0.75 - 1.0 | 31 | 37 | 43 |
1.25 - 1.5 | 49 | 74 | 99 |
1.75 - 2.5 | 74 | 99 | 124 |
2.75 - 3.5 | 99 | 124 | 149 |
3.75 - 4.5 | 124 | 149 | 174 |
4.75 - 5.5 | 149 | 174 | 200 |
5.75 - 6.5 | 174 | 200 | 200 |
≥ 6.75 | 200 | 200 | 200 |
Open Space Required | ||||
Building Type | Minimum Open Space Required Based on Units per Acre | |||
1-19 units/acre | 20-39 units/acre | 40-59 units/acre | 60+ units/acre | |
Detached House or a Building for a Cultural Institution, Religious Assembly, Public Use or conditional use allowed in the zone | 0% | 10% | 10% | 15% |
Duplex | 0% | 10% | 15% | 20% |
Townhouse | 10% | 15% | 20% | 25% |
Apartment, Multi Use, or General Building | 15% | 20% | 25% | 30% |
Density Allowed | ||||||
Pre-Existing Euclidean Zone | Maximum Density Allowed in FAR Based on Size of Tract in Acres | |||||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | ||||
Total Density | C or R Density | Total Density | C or R Density | Total Density | C or R Density | |
Density Allowed | ||||||
Pre-Existing Euclidean Zone | Maximum Density Allowed in FAR Based on Size of Tract in Acres | |||||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | ||||
Total Density | C or R Density | Total Density | C or R Density | Total Density | C or R Density | |
RE-2, RE-2c, RE-1, R-200 | 0.75 FAR | 0.5 FAR | 1.0 FAR | 0.75 FAR | 1.25 FAR | 1.0 FAR |
R-90, R-60, R-40, TLD, TMD, THD | 1.0 | 0.75 | 1.25 | 1.0 | 1.5 | 1.25 |
R-30, R-20, R-10 | 1.25 | 1.0 | 1.5 | 1.25 | 1.75 | 1.5 |
CRN | 1.0 | 0.75 | 1.25 | 1.0 | 1.5 | 1.25 |
CRT | 2.0 | 1.5 | 3.0 | 2.0 | 4.0 | 3.0 |
CR | 4.0 | 3.0 | 6.0 | 4.5 | 8.0 | 6.0 |
Employment | 2.0 | 1.5 | 3.0 | 2.0 | 4.0 | 3.0 |
IL, IM | 0.75 | 0.5 | 1.0 | 0.75 | 1.5 | 1.25 |
Zone | Tract Size OR Max Total FAR | Public Benefit Points (min) | Number of Benefit Categories (min) |
CRTF | < 10,000 SF OR < 1.5 max FAR | 25 | 2 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 50 | 3 | |
CRF | < 10,000 SF OR < 1.5 max FAR | 50 | 3 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 100 | 4 |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
RE-2, RE-2c, RE-1, R-200 | 0.75 FAR | 1.0 FAR | 1.25 FAR |
R-90, R-60, R-40, TLD, TMD, THD | 1.0 | 1.25 | 1.5 |
R-30, R-20, R-10 | 1.25 | 1.5 | 1.75 |
CRN | 1.0 | 1.25 | 1.5 |
CRT | 2.0 | 3.0 | 4.0 |
CR | 4.0 | 6.0 | 8.0 |
Employment | 2.0 | 3.0 | 4.0 |
IL, IM | 0.75 | 1.0 | 1.5 |
Zone | Tract Size OR Max Total FAR | Public Benefit Points (min) | Number of Benefit Categories (min) |
LSCF | < 10,000 SF OR < 1.5 max FAR | 15 | 1 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 30 | 2 | |
EOFF | < 10,000 SF OR < 1.5 max FAR | 30 | 2 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 60 | 3 |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
RE-2, RE-2c, RE-1, R-200 | 0.50 FAR | 0.75 FAR | 1.00 FAR |
R-90, R-60, R-40, TLD, TMD, THD | 0.75 | 1.00 | 1.25 |
R-30, R-20, R-10 | 1.00 | 1.25 | 1.50 |
CRN | 0.75 | 1.00 | 1.25 |
CRT | 1.00 | 1.25 | 1.50 |
CR | 2.00 | 2.50 | 3.00 |
Employment | 1.00 | 1.25 | 1.50 |
Industrial | 2.00 | 2.50 | 3.00 |
5. Floating Zone Requirements
Master Plan Recommended Floating Zone | Equivalent Floating Zone |
Master Plan Recommended Floating Zone | Equivalent Floating Zone |
C-Inn | None (See Use Table under Section 3.1.6) |
R-MH | RDF |
RT-6.0, RT-8.0, RT-10.0, RT-12.5, RT-15.0 | TF |
R-H, R-4plex | AF |
P-D | AF or CRNF |
C-T | CRNF |
MXN, MXPD, PNZ, PRC, T-S | CRTF |
H-M, TS-M, TS-R | CRF |
C-3, PCC | GRF |
C-P, I-3, O-M | EOFF |
RS | IMF |
Category | Prerequisite Choices |
Category | Prerequisite Choices |
Transit & Infrastructure | At least 75% of the site is within ¼ mile of a Level 3, ½ mile of a Level 2, or ¾ mile of a Level 1 transit station/stop. |
The site has frontage on and vehicular, bicycle, and pedestrian access to at least 2 roads, at least one of which is nonresidential. | |
The site is served by existing water and sewer infrastructure that will not require either an upgrade to the service line or installation of a pump station due to the proposed development. | |
All signalized intersections within ¼ mile of the site boundary are operating below the applicable congestion standard. | |
The project is age-restricted or senior housing, or if proposing development that may generate students, the site must not be in an area that is under moratorium due to school capacity or result in a school utilization rate greater than 120% because of the proposed development. For any site within 2 school clusters, only the portions of the site that satisfy this requirement can proceed. | |
Vicinity & Facilities | The site is in a transitional location between property in an existing Residential Multi-Unit, Residential Townhouse, or non-Residential zone and property in a Residential Multi-Unit, Residential Townhouse, or Residential Detached zone. |
The site is adjacent to a bicyclist route that provides access to commercial services within 3 miles. | |
The site is adjacent to a route that provides access to an existing or master-planned school within ½ mile. | |
The site is adjacent to a pedestrian route that provides access to existing public park and recreation facilities that satisfy a minimum of 30% of the recreation demand under the Planning Board’s Recreation Guidelines, as amended, within ¾ mile. | |
The site is adjacent to a pedestrian route that provides access to an existing grocery store or County-permitted farmer’s market within ¼ mile. | |
Environment & Resources | The limits of disturbance for the development will not overlap any stream, floodplain, wetland, or environmental buffer or any slopes greater than 25% or slopes greater than 15% where erodible soils are present. |
The site does not contain any forest or, if forest is present, the limits of disturbance for the development will not reduce the forest cover to less than an area of 10,000 square feet and width of 35 feet at any point. | |
The site does not contain any rare, threatened, or endangered species or critical habitats listed by the Maryland Department of Natural Resources. | |
The site is on land containing contaminated soils and is developed in conjunction with an environmental Voluntary Cleanup Program under the Maryland Department of Environmental Protection. | |
The site is currently developed with more than 75% impermeable surfaces, including paving and roofed-structures, and does not currently provide stormwater management meeting the standards applicable on the date of filing. | |
Floating Zone Category | Approved Density | All Uses Allowed |
Floating Zone Category | Approved Density | All Uses Allowed |
RDF | < 3 units/acre and < 150 total units | R-200 |
< 3 units/acre and ≥ 150 total units | R-200, CRN | |
≥ 3 units/acre and < 150 total units | R-90, R-60, R-40 | |
≥ 3 units/acre and ≥ 150 total units | R-90, R-60, R-40, CRN | |
TF | < 12 units/acre and < 150 total units | TLD |
< 12 units/acre and ≥ 150 total units | TLD, CRN | |
≥ 12 units/acre and < 150 total units | TMD, THD | |
≥ 12 units/acre and ≥ 150 total units | TMD, THD, CRN | |
AF | < 20 units/acre and < 150 total units | R-30 |
< 20 units/acre and ≥ 150 total units | R-30, CRN | |
≥ 20 units/acre and < 150 total units | R-20, R-10, CRN | |
≥ 20 units/acre and ≥ 150 total units | R-20, R-10, CRT | |
Detached House or a Building for a Cultural Institution, Religious Assembly, Public Use or conditional use allowed in the zone | Duplex | Townhouse | Apartment Building | Multi Use Building | General Building | |
Zone | ||||||
RDF | A | S | S | |||
TF | A | A | A | S | S | |
AF | A | A | A | A | S | S |
Pre-Existing Euclidean Zone | Base Lot/Site Size | Base Density in Units per Acre | Maximum Allowed Density in Units per Acre | ||
Less than 3 times the base lot/site size | 3 to <6 times the base lot/site size | At least 6 times the base lot/site size | |||
Pre-Existing Euclidean Zone | Base Lot/Site Size | Base Density in Units per Acre | Maximum Allowed Density in Units per Acre | ||
Less than 3 times the base lot/site size | 3 to <6 times the base lot/site size | At least 6 times the base lot/site size | |||
RE-2, RE-2C | 2 acres | 0.50 | 0.50 | 0.75 | 1.00 |
RE-1 | 40,000 SF | 1.09 | 1.09 | 1.63 | 2.18 |
R-200 | 20,000 SF | 2.18 | 2.18 | 3.27 | 4.36 |
R-90 | 9,000 SF | 4.84 | 4.84 | 7.26 | 12.00 |
R-60 | 6,000 SF | 7.26 | 7.26 | 10.89 | 14.52 |
R-40 | 4,000 SF | 10.89 | 10.89 | 16.33 | 21.78 |
TLD | 20,000 SF | 9.00 | 9.00 | 13.50 | 18.00 |
TMD | 20,000 SF | 12.00 | 12.00 | 18.00 | 24.00 |
THD | 40,000 SF | 15.00 | 15.00 | 22.50 | 30.00 |
R-30 | 12,000 SF | 14.50 | 14.50 | 21.75 | 29.00 |
R-20 | 16,000 SF | 21.70 | 21.70 | 32.55 | 43.40 |
R-10 | 20,000 SF | 43.50 | 43.50 | 65.25 | 87.00 |
Pre-Existing Euclidean Zone Total FAR | Maximum Allowed Density in Units per Acre | ||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | |
Pre-Existing Euclidean Zone Total FAR | Maximum Allowed Density in Units per Acre | ||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | |
≤ 0.5 | 18 | 24 | 31 |
0.75 - 1.0 | 31 | 37 | 43 |
1.25 - 1.5 | 49 | 74 | 99 |
1.75 - 2.5 | 74 | 99 | 124 |
2.75 - 3.5 | 99 | 124 | 149 |
3.75 - 4.5 | 124 | 149 | 174 |
4.75 - 5.5 | 149 | 174 | 200 |
5.75 - 6.5 | 174 | 200 | 200 |
≥ 6.75 | 200 | 200 | 200 |
Open Space Required | ||||
Building Type | Minimum Open Space Required Based on Units per Acre | |||
1-19 units/acre | 20-39 units/acre | 40-59 units/acre | 60+ units/acre | |
Detached House or a Building for a Cultural Institution, Religious Assembly, Public Use or conditional use allowed in the zone | 0% | 10% | 10% | 15% |
Duplex | 0% | 10% | 15% | 20% |
Townhouse | 10% | 15% | 20% | 25% |
Apartment, Multi Use, or General Building | 15% | 20% | 25% | 30% |
Density Allowed | ||||||
Pre-Existing Euclidean Zone | Maximum Density Allowed in FAR Based on Size of Tract in Acres | |||||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | ||||
Total Density | C or R Density | Total Density | C or R Density | Total Density | C or R Density | |
Density Allowed | ||||||
Pre-Existing Euclidean Zone | Maximum Density Allowed in FAR Based on Size of Tract in Acres | |||||
Up to 0.5 acres | 0.51 acres - 3.00 acres | Greater than 3 acres | ||||
Total Density | C or R Density | Total Density | C or R Density | Total Density | C or R Density | |
RE-2, RE-2c, RE-1, R-200 | 0.75 FAR | 0.5 FAR | 1.0 FAR | 0.75 FAR | 1.25 FAR | 1.0 FAR |
R-90, R-60, R-40, TLD, TMD, THD | 1.0 | 0.75 | 1.25 | 1.0 | 1.5 | 1.25 |
R-30, R-20, R-10 | 1.25 | 1.0 | 1.5 | 1.25 | 1.75 | 1.5 |
CRN | 1.0 | 0.75 | 1.25 | 1.0 | 1.5 | 1.25 |
CRT | 2.0 | 1.5 | 3.0 | 2.0 | 4.0 | 3.0 |
CR | 4.0 | 3.0 | 6.0 | 4.5 | 8.0 | 6.0 |
Employment | 2.0 | 1.5 | 3.0 | 2.0 | 4.0 | 3.0 |
IL, IM | 0.75 | 0.5 | 1.0 | 0.75 | 1.5 | 1.25 |
Zone | Tract Size OR Max Total FAR | Public Benefit Points (min) | Number of Benefit Categories (min) |
CRTF | < 10,000 SF OR < 1.5 max FAR | 25 | 2 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 50 | 3 | |
CRF | < 10,000 SF OR < 1.5 max FAR | 50 | 3 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 100 | 4 |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
RE-2, RE-2c, RE-1, R-200 | 0.75 FAR | 1.0 FAR | 1.25 FAR |
R-90, R-60, R-40, TLD, TMD, THD | 1.0 | 1.25 | 1.5 |
R-30, R-20, R-10 | 1.25 | 1.5 | 1.75 |
CRN | 1.0 | 1.25 | 1.5 |
CRT | 2.0 | 3.0 | 4.0 |
CR | 4.0 | 6.0 | 8.0 |
Employment | 2.0 | 3.0 | 4.0 |
IL, IM | 0.75 | 1.0 | 1.5 |
Zone | Tract Size OR Max Total FAR | Public Benefit Points (min) | Number of Benefit Categories (min) |
LSCF | < 10,000 SF OR < 1.5 max FAR | 15 | 1 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 30 | 2 | |
EOFF | < 10,000 SF OR < 1.5 max FAR | 30 | 2 |
≥ 10,000 SF OR ≥ 1.5 max FAR | 60 | 3 |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
Density Allowed | |||
Pre-Existing Euclidean Zone | Maximum Total Density Allowed in FAR Based on Size of Tract in Acres | ||
Less than 0.5 acres | 0.5 acres - 3.00 acres | Greater than 3 acres | |
RE-2, RE-2c, RE-1, R-200 | 0.50 FAR | 0.75 FAR | 1.00 FAR |
R-90, R-60, R-40, TLD, TMD, THD | 0.75 | 1.00 | 1.25 |
R-30, R-20, R-10 | 1.00 | 1.25 | 1.50 |
CRN | 0.75 | 1.00 | 1.25 |
CRT | 1.00 | 1.25 | 1.50 |
CR | 2.00 | 2.50 | 3.00 |
Employment | 1.00 | 1.25 | 1.50 |
Industrial | 2.00 | 2.50 | 3.00 |