GENERAL PERFORMANCE STANDARDS
Land Use Category | From 7:00 a.m. to 10:00 p.m. | From 10:00 p.m. to 7:00 a.m. |
|---|---|---|
R-R and R-1 | 60 | 50 |
R-1A, R-2, R-2A, R-3 and R-3A | 60 | 50 |
C-1 and C-2 | 75 | 65 |
I | 75 | 65 |
Class | Option | |
|---|---|---|
A | (1) | One canopy tree per 40 feet on boundary, plus one ornamental tree per 60 feet, plus one evergreen per 60 feet, arranged on property |
(2) | One canopy tree per 40 feet arranged on property plus hedge on boundary (three feet centers) | |
(3) | One canopy tree per 40 feet, plus one evergreen per 30 feet, arranged on property | |
B | (1) | One evergreen per 20 feet arranged on property, plus hedge on boundary (three-foot centers) |
(2) | One evergreen per 25 feet arranged on property, plus berm averaging four feet on boundary | |
(3) | One evergreen per 25 feet arranged on property, plus one shrub A per eight feet on boundary | |
(4) | One evergreen per 20 feet arranged on property, plus one shrub B per four feet on boundary | |
C | (1) | One hedgerow on lot line (three-foot centers) |
(2) | six-foot cedar or spruce fencing on lot line |
Type | Size (inches caliper) |
|---|---|
Acer ginnala-amur maple | 1½ |
Acer plantanoides–Norway maple | 1½ |
Acer rubrum–red maple | 1½ |
Acer saccharum–sugar maple | 1½ |
Fagus grandifolia–American beech | 1½ |
Fagus sylvatica–European beech | 1½ |
Fraxinus americana–white ash | 1½ |
Ginkgo biloba–ginkgo (male only) | 1½ |
Gleditsia triacanthos inermis–thornless honey locust | 1½ |
Liquidamber styraciflua–sweetgum | 1½ |
Liriodendron tulipifera–tulip-tree | 1½ |
Phellondendron amurense–amur corktree | 1½ |
Plantanus acerifolia–London plane tree | 1½ |
Quercus alba–white oak | 1½ |
Quercus borealis–red oak | 1½ |
Quercus coccinea–scarlet oak | 1½ |
Quercus palustris–pin oak | 1½ |
Quercus phellos–willow oak | 1½ |
Robina psuedoacacia inermis–thornless black locust | 1½ |
Sophora japonica–Japanese pagodatree | 1½ |
Tilia-linden–all species hardy to the area | 1½ |
Zelkova serrata–Japanese zelkova | 1½ |
Type | Size |
|---|---|
Amelanchier canadensis–shadblow service berry | 5 to 6 feet |
Betula alba–European white birch | 1½-inch caliper |
Betula papyrifera–paper birch | 1½-inch caliper |
Cornus florida–flowering dogwood | 5 to 6 feet |
Cornus mas–Cornelian cherry | 5 to 6 feet |
Crataegus phaenopyrum–Washington hawthorn | 5 to 6 feet |
Koelreuteria paniculata–goldenrain tree | 8 to 10 feet |
Laburnum vossi–goldenchain | 1¼ to 1½-inch caliper |
Magnolia soulangeana–saucer magnolia | 5 to 6 feet |
Magnolia virginiana–sweet bay | 5 to 6 feet |
Malus baccata–Siberian crab | 1¼ to 1½-inch caliper |
Malus floribunda–Japanese flowering crab | 1¼ to 1½-inch caliper |
Malus hopa–hopa red-flowering crab | 1¼ to 1½-inch caliper |
Oxydendrum arboreum–sourwood | 5 to 6 feet |
Pyrus calleryana Bradford–callery pear | 1¼ to 1½-inch caliper |
Prunus kwanzan–Kwanzan cherry | 1¼ to 1½-inch caliper |
Prunus yedoensis–Yoshino cherry | 1¼ to 1½-inch caliper |
Type | Size |
|---|---|
Ilex opaca–American holly | |
Picea abies–Norway spruce | |
Picea omorika–Siberian spruce | |
Picea pungens–Colorado spruce | |
Pinus nigra–Austrian pine | |
Pinus strobus–white pine | |
Pseudotsuga menziesii–Douglas fir | |
Tsuga canadensis–Canada hemlock |
Type | Size (feet) |
|---|---|
Crataegus intricata–thicket hawthorn | 3 to 4 |
Forsythia intermedia–border forsythia | 4 to 5 |
Rhamnus frazula columnaris–tallhedge buckthorn | 3 to 4 |
Syringa chinensis–Chinese lilac | 3 to 4 |
Syringa vulgaris–common lilac | 4 to 5 |
Viburnum alatus–viburnum | 4 to 5 |
Type | Size (feet) |
|---|---|
Buxus–boxwood | 4 to 5 |
Pyracantha laland–Laland fire thorn | 5 to 6 |
Juniperus verginiawa–upright juniper | 4 to 5 |
Cotoneaster divaricata–spreading cotoneaster | 3 to 3½ |
Rhamnus frangula-columnaris–tall hedge buckthorn | 5 to 6 |
Type | Size (feet) |
|---|---|
Juniperus virginiana–upright juniper | 4 to 5 |
Pyracantha laland–Laland fire thorn | 5 to 6 |
Taxus capitata–upright yew | 2½ to 3 |
Taxus hicksi–hicks yew | 2½ to 3 |
Thuja occidentalis–American arborvitae | 4 to 5 |
Type | Size (feet) |
|---|---|
Euonymus alatus–winged euonymus | 3 to 4 |
Hamamelis vernalis–vernal witch hazel | 4 to 5 |
Hamamelis virginiana–common witch hazel | 4 to 5 |
Ilex verticillata–winterberry | 4 to 5 |
Rhamnus frangula–glossy buckthorn | 4 to 5 |
Viburnum dentatum–arrowood virburum | 4 to 5 |
Viburnum lantana–wayfaringtree viburnum | 4 to 5 |
Total site area | __________ acres | |
- | __________ acres | |
Base site area | __________ acres |
Resource | Resource Open Space Ratio (percent) | Acres of Land in Resources | Resource Protection Land (Acres x Open Space Ratio) |
|---|---|---|---|
Floodplains | 100 | ||
Steep slopes: 8% to less than 15% | 60 | ||
Steep slopes: 15% to less than 25% | 70 | ||
Steep slopes: 25% or greater | 85 | ||
Woodlands | 75 | ||
Watercourses or streams | 100 | ||
Wetlands | 100 | ||
Wetlands buffer | 80 | ||
Lakes and ponds | 100 | ||
Lake and pond shorelines | 80 | ||
Watercourse buffer | 80 | ||
Land with resource restrictions | __________ acres | ||
Resource protection land | __________ acres |
Base site area | __________ acres | |
Subtract land with resource restrictions | - | __________ acres |
Remainder | __________ acres | |
Multiply by a minimum open space ratio defined in area and design regulations | x | __________ acres |
Unencumbered land | = | __________ acres |
Resource protection land | __________ acres | |
Add unencumbered land | + | __________ acres |
Resource protection and unencumbered land | = | __________ acres |
Base Site Area | __________ acres | |
Multiply by minimum open space ratio defined in area and design regulations | x | __________ |
Standard minimum open space | = | __________ acres |
_________ acres |
Base site area | __________ acres | |
Subtract required open space | - | __________ acres |
Net buildable site area | = | __________ acres |
Net buildable site area | __________ acres | |
Multiply by maximum density | x | __________ |
Number of dwelling units | = | __________ |
Net buildable site area | __________acres | |
Multiply by maximum surface ratio | x | __________ |
Impervious surface | = | __________ |
Required open space, Paragraph B(6) | __________ acres |
Net buildable site area, Paragraph B(7) | __________ acres |
Maximum number of dwelling units/lots, Paragraph B(8) | __________ |
Maximum impervious surfaces, Paragraph B(9) | __________ |
GENERAL PERFORMANCE STANDARDS
Land Use Category | From 7:00 a.m. to 10:00 p.m. | From 10:00 p.m. to 7:00 a.m. |
|---|---|---|
R-R and R-1 | 60 | 50 |
R-1A, R-2, R-2A, R-3 and R-3A | 60 | 50 |
C-1 and C-2 | 75 | 65 |
I | 75 | 65 |
Class | Option | |
|---|---|---|
A | (1) | One canopy tree per 40 feet on boundary, plus one ornamental tree per 60 feet, plus one evergreen per 60 feet, arranged on property |
(2) | One canopy tree per 40 feet arranged on property plus hedge on boundary (three feet centers) | |
(3) | One canopy tree per 40 feet, plus one evergreen per 30 feet, arranged on property | |
B | (1) | One evergreen per 20 feet arranged on property, plus hedge on boundary (three-foot centers) |
(2) | One evergreen per 25 feet arranged on property, plus berm averaging four feet on boundary | |
(3) | One evergreen per 25 feet arranged on property, plus one shrub A per eight feet on boundary | |
(4) | One evergreen per 20 feet arranged on property, plus one shrub B per four feet on boundary | |
C | (1) | One hedgerow on lot line (three-foot centers) |
(2) | six-foot cedar or spruce fencing on lot line |
Type | Size (inches caliper) |
|---|---|
Acer ginnala-amur maple | 1½ |
Acer plantanoides–Norway maple | 1½ |
Acer rubrum–red maple | 1½ |
Acer saccharum–sugar maple | 1½ |
Fagus grandifolia–American beech | 1½ |
Fagus sylvatica–European beech | 1½ |
Fraxinus americana–white ash | 1½ |
Ginkgo biloba–ginkgo (male only) | 1½ |
Gleditsia triacanthos inermis–thornless honey locust | 1½ |
Liquidamber styraciflua–sweetgum | 1½ |
Liriodendron tulipifera–tulip-tree | 1½ |
Phellondendron amurense–amur corktree | 1½ |
Plantanus acerifolia–London plane tree | 1½ |
Quercus alba–white oak | 1½ |
Quercus borealis–red oak | 1½ |
Quercus coccinea–scarlet oak | 1½ |
Quercus palustris–pin oak | 1½ |
Quercus phellos–willow oak | 1½ |
Robina psuedoacacia inermis–thornless black locust | 1½ |
Sophora japonica–Japanese pagodatree | 1½ |
Tilia-linden–all species hardy to the area | 1½ |
Zelkova serrata–Japanese zelkova | 1½ |
Type | Size |
|---|---|
Amelanchier canadensis–shadblow service berry | 5 to 6 feet |
Betula alba–European white birch | 1½-inch caliper |
Betula papyrifera–paper birch | 1½-inch caliper |
Cornus florida–flowering dogwood | 5 to 6 feet |
Cornus mas–Cornelian cherry | 5 to 6 feet |
Crataegus phaenopyrum–Washington hawthorn | 5 to 6 feet |
Koelreuteria paniculata–goldenrain tree | 8 to 10 feet |
Laburnum vossi–goldenchain | 1¼ to 1½-inch caliper |
Magnolia soulangeana–saucer magnolia | 5 to 6 feet |
Magnolia virginiana–sweet bay | 5 to 6 feet |
Malus baccata–Siberian crab | 1¼ to 1½-inch caliper |
Malus floribunda–Japanese flowering crab | 1¼ to 1½-inch caliper |
Malus hopa–hopa red-flowering crab | 1¼ to 1½-inch caliper |
Oxydendrum arboreum–sourwood | 5 to 6 feet |
Pyrus calleryana Bradford–callery pear | 1¼ to 1½-inch caliper |
Prunus kwanzan–Kwanzan cherry | 1¼ to 1½-inch caliper |
Prunus yedoensis–Yoshino cherry | 1¼ to 1½-inch caliper |
Type | Size |
|---|---|
Ilex opaca–American holly | |
Picea abies–Norway spruce | |
Picea omorika–Siberian spruce | |
Picea pungens–Colorado spruce | |
Pinus nigra–Austrian pine | |
Pinus strobus–white pine | |
Pseudotsuga menziesii–Douglas fir | |
Tsuga canadensis–Canada hemlock |
Type | Size (feet) |
|---|---|
Crataegus intricata–thicket hawthorn | 3 to 4 |
Forsythia intermedia–border forsythia | 4 to 5 |
Rhamnus frazula columnaris–tallhedge buckthorn | 3 to 4 |
Syringa chinensis–Chinese lilac | 3 to 4 |
Syringa vulgaris–common lilac | 4 to 5 |
Viburnum alatus–viburnum | 4 to 5 |
Type | Size (feet) |
|---|---|
Buxus–boxwood | 4 to 5 |
Pyracantha laland–Laland fire thorn | 5 to 6 |
Juniperus verginiawa–upright juniper | 4 to 5 |
Cotoneaster divaricata–spreading cotoneaster | 3 to 3½ |
Rhamnus frangula-columnaris–tall hedge buckthorn | 5 to 6 |
Type | Size (feet) |
|---|---|
Juniperus virginiana–upright juniper | 4 to 5 |
Pyracantha laland–Laland fire thorn | 5 to 6 |
Taxus capitata–upright yew | 2½ to 3 |
Taxus hicksi–hicks yew | 2½ to 3 |
Thuja occidentalis–American arborvitae | 4 to 5 |
Type | Size (feet) |
|---|---|
Euonymus alatus–winged euonymus | 3 to 4 |
Hamamelis vernalis–vernal witch hazel | 4 to 5 |
Hamamelis virginiana–common witch hazel | 4 to 5 |
Ilex verticillata–winterberry | 4 to 5 |
Rhamnus frangula–glossy buckthorn | 4 to 5 |
Viburnum dentatum–arrowood virburum | 4 to 5 |
Viburnum lantana–wayfaringtree viburnum | 4 to 5 |
Total site area | __________ acres | |
- | __________ acres | |
Base site area | __________ acres |
Resource | Resource Open Space Ratio (percent) | Acres of Land in Resources | Resource Protection Land (Acres x Open Space Ratio) |
|---|---|---|---|
Floodplains | 100 | ||
Steep slopes: 8% to less than 15% | 60 | ||
Steep slopes: 15% to less than 25% | 70 | ||
Steep slopes: 25% or greater | 85 | ||
Woodlands | 75 | ||
Watercourses or streams | 100 | ||
Wetlands | 100 | ||
Wetlands buffer | 80 | ||
Lakes and ponds | 100 | ||
Lake and pond shorelines | 80 | ||
Watercourse buffer | 80 | ||
Land with resource restrictions | __________ acres | ||
Resource protection land | __________ acres |
Base site area | __________ acres | |
Subtract land with resource restrictions | - | __________ acres |
Remainder | __________ acres | |
Multiply by a minimum open space ratio defined in area and design regulations | x | __________ acres |
Unencumbered land | = | __________ acres |
Resource protection land | __________ acres | |
Add unencumbered land | + | __________ acres |
Resource protection and unencumbered land | = | __________ acres |
Base Site Area | __________ acres | |
Multiply by minimum open space ratio defined in area and design regulations | x | __________ |
Standard minimum open space | = | __________ acres |
_________ acres |
Base site area | __________ acres | |
Subtract required open space | - | __________ acres |
Net buildable site area | = | __________ acres |
Net buildable site area | __________ acres | |
Multiply by maximum density | x | __________ |
Number of dwelling units | = | __________ |
Net buildable site area | __________acres | |
Multiply by maximum surface ratio | x | __________ |
Impervious surface | = | __________ |
Required open space, Paragraph B(6) | __________ acres |
Net buildable site area, Paragraph B(7) | __________ acres |
Maximum number of dwelling units/lots, Paragraph B(8) | __________ |
Maximum impervious surfaces, Paragraph B(9) | __________ |