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Steps to Complete Site Capacity Calculations
1. Base Site Area
2. Net Site Area
3. DensityResidential = Dwelling Units
Nonresidential = Impervious Surface and Floor Area
4. Resource Protected Land
5. Recreational Land (Residential Development)
6. Total Open Space Area
Table 1. Calculation of Base Site AreaStep 1 Gross Area of property - from survey 33.71Step 2 Subtract land area contained in roads, ultimate
righs-of-way and existing access easements. 0.00Step 3 Subtract land that is not contiguous
A. Portion of property that is physically separate from parent parcel and can be developed on its own. 0.00
B. A separate parcel that is rendered physically inaccessible to the main parcel and cannot be developed on its own. 0.00
C. Subtract land that was reserved for resource protection or other open space purposes in a previously approved subdivision plat (e.g., floodplain or recreation area) 0.00
D. Subtract land under a different zoning classification or in a different use classification (i.e. residential vs. nonresidential). 0.00Equals "Base Site Area" 33.71
Step 1: Base Site Area Calculation
Take Base Site Area 33.71Subtract Regulatory floodplains and floodprone areas. - 3.50Subtract Wetlands (1/4 Ac. +) - 1.40Subtract Non-linear water bodies (e.g. lakes, ponds) - 0.00Subtract Linear water bodies (e.g. channels) - 0.00Equals "Net Site Area" 28.81
Step 2: Net Site Area Calculation
Table 2. Net Site Area Calculation
Table 3. Maximum Dwelling Unit CalculationStep 1 28.81
Step 2 x 1.33= 38.32
Step 3: Dwelling Unit Calculation
Take "Net Site Area" from Table 2.Multiply by Zoning District Maximum Density Factor (from UDO Art. 7)Equals Maximum Number of Units
Table 4. Resource-Protected Land Area Calculation
Resource Type
Land Area of
Resource (acres) Protection Ratio
Resource-Protected Land
Area
Regulatory floodplains and floodprone areas with 100 acres or more tributary drainage area 3.50 x 1.00 = 3.50Wetlands (1/4 Ac. +) 1.40 x 1.00 = 1.40Non-linear water bodies 0.00 x 1.00 = 0.00Linear water bodies 0.00 x 1.00 = 0.00Wetland and Water Body Buffers 0.73 x 0.80 = 0.58Mature woodlands & Groves (Subtract Floodplain 0.8) 2.86 x 0.70 = 2.00Young woodlands (Subtract 1/2 Wetland Buffer) 6.35 x 0.50 = 3.18Equals Total "Resource-Protected Land Area" 10.66
Step 4: Resource-Protected Land Area Calculation
Table 5. Recreational Land Area Calculation
Step 1 38
Step 2 x 1.07= 1.07Equals Total "Recreation Land Area" Required (Acres)
Multiply by 0.028 (based on Lake County average household size)
Take Maximum Dwelling Units Allowed
Step 5: Recreational Land Area Calculation
Table 6a. Calculating Required Open Space (Conventional Development)
Step 1 10.66
Step 2 + 1.07
= 11.73
Take total "Resource-Protected Land Area"
Step 6: Total Open Space Land Area Calculation
Equals Conventional Open Space Requirement (Acres)
Add total "Recreation Land Area"
Step 1 10.66
Step 2 + 1.07
= 11.73
Step1 33.71
Step 2 x 0.30
Step 3 = 10.11Step 4 11.73
= 11.73
* All natural resources except non-linear water bodies may be used in meeting the minimum open space requirement.
Multiply by Zoning District Minimum Open Space RatioEquals District-Based Open Space RequirementTake Higher of "Capacity-Based" or "District-Based" Open
Table 6b. Calculating Required Open Space (Conservation Development)
Equals Minimum Open Space Requirement
Take total "Resource-Protected Land Area"
Add total "Recreation Land Area"
Equals Capacity-based Open Space Requirement (Acres)
Take "Base Site Area"
7 SIGNIFICANT TREES
EDGE OF FLOOD PLAIN
WETLANDBUFFER
GROVE 10,000 SF CANOPY AREA
1.4 ACREWETLAND
YOUNGWOODLANDS
#003
#005
#004
#001
#007
#006
4.5 AC WETLAND(2.5 AC ON SITE)
50 FT. WETLANDBUFFER
0.10 AC (4,356 SF)WETLAND TO BE REMOVED
YOUNGWOODLANDS6.7 ACRES
#002
MATUREWOODLANDS3.5 ACRES
SIGNIFICANT TREESTAG TYPE SIZE CONDITION
001 OAK 30” GOOD 002 OAK 30” GOOD 003 OAK 32” GOOD 004 OAK 32” GOOD 005 OAK 32” GOOD 006 OAK 34” GOOD 007 OAK 24” GOOD
EXISTING EXISTING PROTECTION RESOURCE QTY/AREA REQUIREMENT GROVE 10,000 SF CANOPY 7,000 SF (70%) SIGNIFICANT TREES 7 TREES 5 TREES (70%) YOUNG WOODLAND 6.7 AC 50% (3.35 AC) MATURE WOODLAND 3.5 AC 70% (2.45 AC) FLOODPLAIN 3.5 AC 100% (3.5 AC) WETLAND 5.0 AC 100% of 4.9 AC WETLAND BUFFER 4.5 AC WETLAND 38,850 SF 80% 1.4 AC WETLAND 32,000 SF 80%
NATURALRESOURCEINVENTORY
(Per UDO, Article 4)
NATURALRESOURCE
PLAN
4.5 AC WETLAND(2.5 AC ON SITE)
50 FT. WETLANDBUFFER
6 SIGNIFICANT TREESTO REMAIN
EDGE OF FLOOD PLAIN
WETLANDBUFFER SILT FENCE AND
TREE PROTECTION FENCEINSTALLED AT DRIPLINE
SILT FENCE ANDTREE PROTECTION FENCEINSTALLED AT DRIPLINE
SILT FENCE ANDTREE PROTECTIONFENCE
GROVE 10,000 SF CANOPY AREA2,860 SF TO BE REMOVED
1.4 ACREWETLAND
YOUNGWOODLANDS
MATURE WOODLANDS
1.05 AC. (30%)MATURE WOODLANDTO BE REMOVED
0.10 AC (4,356 SF)WETLAND TO BE REMOVED
3.35 AC. (145,926 SF)YOUNG WOODLANDTO BE REMOVED
#003
#005
#004
#001
#007
#006
SIGNIFICANT TREE#002 TO BE REMOVED
WETLAND BUFFERDISTURBANCE2,000 SF
DETENTION AREA
PARK
PARK
EXISTING EXISTING PROTECTION PROPOSED RESOURCE QTY/AREA REQUIREMENT PROTECTION GROVE 10,000 SF CANOPY 7,000 SF (70%) 7,200 SF (72%)
SIGNIFICANT TREES 7 TREES 5 TREES (70%) 6 TREES (85%) YOUNG WOODLAND 6.7 AC 50% (3.35 AC) 50% (3.35 AC/145,929 SF) MATURE WOODLAND 3.5 AC 70% (2.45 AC) 70% (2.45 AC/106,722 SF) FLOODPLAIN 3.5 AC 100% (3.5 AC) 100% (3.5 AC) WETLAND 5.0 AC 100% of 4.9 AC 100% (4.9 AC) WETLAND BUFFER 4.5 AC WETLAND 38,850 SF 80% 95% (36,850 SF) 1.4 AC WETLAND 32,000 SF 80% 100%
SIGNIFICANT TREES TAG TYPE SIZE CONDITION__IMPACT 001 OAK 30” GOOD REMOVE 002 OAK 30” GOOD SAVE 003 OAK 32” GOOD SAVE 004 OAK 32” GOOD SAVE 005 OAK 32” GOOD SAVE 006 OAK 34” GOOD SAVE 007 OAK 24” GOOD SAVE
REQUIREDRESOURCEPROTECTED
AREA
4.5 AC WETLAND(2.5 AC ON SITE)
50 FT. WETLANDBUFFER
6 SIGNIFICANT TREESTO REMAIN
EDGE OF FLOOD PLAIN
WETLANDBUFFER SILT FENCE AND
TREE PROTECTION FENCEINSTALLED AT DRIPLINE
SILT FENCE ANDTREE PROTECTION FENCEINSTALLED AT DRIPLINE
SILT FENCE ANDTREE PROTECTIONFENCE
GROVE 10,000 SF CANOPY AREA2,860 SF TO BE REMOVED
1.4 ACREWETLAND
YOUNGWOODLANDS
MATURE WOODLANDS
1.05 AC. (30%)MATURE WOODLANDTO BE REMOVED
0.10 AC (4,356 SF)WETLAND TO BE REMOVED
3.35 AC. (145,926 SF)YOUNG WOODLANDTO BE REMOVED
#003
#005
#004
#001
#007
#006
SIGNIFICANT TREE#002 TO BE REMOVED
WETLAND BUFFERDISTURBANCE2,000 SF
DETENTION AREA
PARK
PARK
MINIMUM PROTECTIONAREA REQUIREMENT – 13.65 AC
*Wetland buffer overlaps woodland area and is subtracted for total area requirement
PROTECTION RESOURCE AREA REQUIREMENT GROVE 10,000 SF CANOPY 7,000 SF (70%) 0.16 AC
YOUNG WOODLAND 6.7 AC 50% (3.35 AC) 2.35 AC* MATURE WOODLAND 3.5 AC 70% (2.45 AC) 1.45 AC* FLOODPLAIN 3.5 AC 100% (3.5 AC) 3.50 AC WETLAND 5.0 AC 100% of 4.9 AC 4.90 AC WETLAND BUFFER 4.5 AC WETLAND 38,850 SF 80% (31,080 SF) 0.71 AC 1.4 AC WETLAND 32,000 SF 80% (25,600 SF) 0.58 AC