DIMOC 06-05-12 Meeting AgendaCOUNTY of FREDERICK
Department of Planning and Development
540/ 665-5651
Fax: 540/ 665-6395
Eric R. Lawrence, AICP
Director
107 North Kent Street • Winchester, Virginia 22601-5000
MEMORANDUM
TO: Development Impact Model – Oversight Committee
FROM: Eric R. Lawrence, AICP, Planning Director
SUBJECT: June 5, 2012 DIM-OC Meeting
DATE: May 29, 2012
________________________________________________________________________
The Development Impact Model - Oversight Committee (DIM-OC) will be meeting on
Tuesday, June 5, 2012 at 8:00 AM in the Planning Department Conference Room of the
County Administration Building, 107 North Kent Street, Suite 202, Winchester, Virginia.
The DIM-OC will discuss the following agenda item:
AGENDA
1. Review of Annual Updated DIM Figures
Please contact our department if you are unable to attend this meeting.
ERL/bhd
Attachments: Overview and Critical Inputs Table
Annual Review of Updated DIM Figures
The Development Impact Model (“DIM”) was adopted by the Board of Supervisors on
October 12, 2005, following its creation by the economic consulting firm TischlerBise.
The DIM is an economic tool that the County utilizes when considering land use planning
policy decisions and rezoning applications. The DIM has been designed to project fiscal
impacts that may result with land use change decisions.
The Development Impact Model – Oversight Committee (DIM-OC) was created by the
Board of Supervisors in 2006 and tasked with overseeing the annual update of the
figures utilized by the Development Impact Model.
The model update occurs each year following the Board’s adoption of the County
budget. It is important to note that the model itself is not modified; the model’s
formula and functionality does not change. The annual update process involves County
staff gathering updated budget and capital improvement plan figures, along with a
myriad of other data that is utilized within the model’s various formulas. This updated
data is brought before the DIM-OC for review and evaluation prior to being input into
the model and forwarded to the Board of Supervisors for their approval.
Attached is a list of the information that staff has gathered – “Annual Review/Update
Critical Inputs” - for inclusion in the DIM update.
Inputs
Updated Model Values
for FY13
FY12 Current Model
Values Source of FY13 info
POPULATION 79,156 78,305 Weldon Cooper Center, 1/30/2012
Number of Dwelling Units
SINGLE FAMILY-DETACHED 25,792 25,619 Fred Co. CAMA File+ new CO
SINGLE FAMILY-ATTACHED 2,741 2,715 Fred Co. CAMA File+ new CO
MULTIFAMILY 924 924 Fred Co. CAMA File+ new CO
MOBILE HOME/OTHER 2,063 2,057 Fred Co. CAMA File+ new CO
AGRICULTURE/OTHER JOBS 418 391 VEC, 3rd quarter, average employment
INDUSTRIAL JOBS 9,178 8,485 VEC, 3rd quarter, average employment
RETAIL/SERVICE JOBS 8,481 8,217 VEC, 3rd quarter, average employment
OFFICE/INSTITUTIONAL JOBS 6,352 6,100 VEC, 3rd quarter, average employment
PARK ACRES 405 405 Frederick County Parks & Recreation
RES SHERIFF CALLS 43,432 43,394 Frederick County Sheriff's Office
NONRES SHERIFF CALLS 30,583 31,122 Frederick County Sheriff's Office
RES FIRE CALLS 7,249 6,554 Frederick County Fire & Rescue
NONRES FIRE CALLS 1,891 2,232 Frederick County Fire & Rescue
OTHER FIRE CALLS 575 525 Frederick County Fire & Rescue
Residential Average Weekday Vehicle Trips Ends per Unit
Single Family-Detached 9.57 9.57 (ITE) Trip Generation Manual (2003)
Single Family-Attached 5.86 5.86 (ITE) Trip Generation Manual (2003)
Multifamily 6.59 6.59 (ITE) Trip Generation Manual (2003)
Mobile Home/Other 4.99 4.99 (ITE) Trip Generation Manual (2003)
Non-Residential Average Weekday Vehicle Trips Ends per Unit
Office 15.59 15.59 (ITE) Trip Generation Manual (2003)
Retail 68.17 68.17 (ITE) Trip Generation Manual (2003)
Ind./Flex 12.76 12.76 (ITE) Trip Generation Manual (2003)
Annual Review / Update Critical Inputs
Page 1 Development Impact Model - Critical Input Annual Update May 29, 2012
Inputs
Updated Model Values
for FY13
FY12 Current Model
Values Source of FY13 info
Annual Review / Update Critical Inputs
Person per Dwelling Unit
Single Family-Detached 2.77 2.77 US Census
Single Family - Attached 2.30 2.30 US Census
Multifamily 2.12 2.12 US Census
Mobile Home/Other 2.43 2.43 US Census
School Children per Dwelling Unit
Single Family-Detached
Elementary 0.212 0.216 Frederick County Public Schools
Middle 0.111 0.116 Frederick County Public Schools
High 0.129 0.142 Frederick County Public Schools
Single Family-Attached
Elementary 0.137 0.159 Frederick County Public Schools
Middle 0.071 0.083 Frederick County Public Schools
High 0.086 0.094 Frederick County Public Schools
Multifamily
Elementary 0.126 0.122 Frederick County Public Schools
Middle 0.051 0.049 Frederick County Public Schools
High 0.059 0.056 Frederick County Public Schools
School Children per Dwelling Unit (cont)
Mobile Home/Other
Elementary 0.180 0.182 Frederick County Public Schools
Middle 0.098 0.087 Frederick County Public Schools
High 0.091 0.106 Frederick County Public Schools
Schools
ELEMENTARY ENROLLMENT 5,926 5,963 Virginia Department of Education
MIDDLE ENROLLMENT 3,069 2,976 Virginia Department of Education
HIGH ENROLLMENT 4,021 4,107 Virginia Department of Education
Page 2 Development Impact Model - Critical Input Annual Update May 29, 2012
Inputs
Updated Model Values
for FY13
FY12 Current Model
Values Source of FY13 info
Annual Review / Update Critical Inputs
Prototype Elementary School
Capacity (student program capacity)850 850 Frederick County Public Schools
Current Cost $19,300,000 $15,000,000 Capital Facility Improvement Plan
Prototype Middle School
Capacity (student program capacity)850 850 Frederick County Public Schools
Current Cost $34,000,000 $28,000,000 Capital Facility Improvement Plan
Prototype High School
Capacity (student program capacity)1250 1,250 Frederick County Public Schools
Current Cost $61,000,000 $54,000,000 Capital Facility Improvement Plan
Transportation Facility
Growth Related Percentage 50%50%Frederick County Public Schools
Current Cost $0 $17,200,000 Capital Facility Improvement Plan
Admin Office Expanison
Growth Related Percentage 50%50%Frederick County Public Schools
Current Cost $14,510,000 $14,510,000 Capital Facility Improvement Plan
Fire Station
Station Call Capacity 1,500 1,500 Frederick County Fire & Rescue
Current Cost $4,305,000 $5,000,000 Capital Facility Improvement Plan
Parks & Recreation (Base Line Inventory)
Regional Park Land 391 Acres 391 Acres Frederick County Parks & Recreation
Community Park Land 14 Acres 14 Acres Frederick County Parks & Recreation
Trails 3.00 Miles 3.00 Miles Frederick County Parks & Recreation
Shelters 18 Facilities 18 Facilities Frederick County Parks & Recreation
Baseball Fields 8 Fields 8 Fields Frederick County Parks & Recreation
Softball Fields 5 Fields 5 Fields Frederick County Parks & Recreation
Playground/Picnic Area 20 Fields 20 Fields Frederick County Parks & Recreation
Picnic areas at regional parks 20 Facilities 20 Facilities Frederick County Parks & Recreation
Tennis Court 6 Courts 6 Courts Frederick County Parks & Recreation
Basketball Courts 5 Facilities 5 Facilities Frederick County Parks & Recreation
Page 3 Development Impact Model - Critical Input Annual Update May 29, 2012
Inputs
Updated Model Values
for FY13
FY12 Current Model
Values Source of FY13 info
Annual Review / Update Critical Inputs
Swimming Pool 2 Facilities 2 Facilities Frederick County Parks & Recreation
Soccer Fields 6 Fields 6 Fields Frederick County Parks & Recreation
Volleyball Courts 3 Courts 3 Courts Frederick County Parks & Recreation
Horeshoe Courts 0 Courts 0 Courts Frederick County Parks & Recreation
Parks & Recreation (Current Cost)
Regional Park Land $6,000 Per Acre $6,000 Per Acre Capital Facility Improvement Plan
Community Park Land $72,000 Per Acre $72,000 Per Acre Capital Facility Improvement Plan
Trails $211,220 Per Mile $211,220 Per Mile Capital Facility Improvement Plan
Shelters $42,322 Per Shelter $42,322 Per Shelter Capital Facility Improvement Plan
Baseball Fields $275,000 Per Field $275,000 Per Field Capital Facility Improvement Plan
Softball Fields $250,000 Per Field $250,000 Per Field Capital Facility Improvement Plan
Playground/Picnic Area $150,000 Per Facility $150,000 Per Facility Capital Facility Improvement Plan
Picnic areas at regional parks $700,000 Per Facility $700,000 Per Facility Capital Facility Improvement Plan
Tennis Court $56,250 Per Court $56,250 Per Court Capital Facility Improvement Plan
Basketball Courts $112,500 Per Court $112,500 Per Court Capital Facility Improvement Plan
Swimming Pool w/ Field House $15,163,000 Per Facility $15,163,000 Per Facility Capital Facility Improvement Plan
Growth Related Percentage 30%30%Frederick County Parks & Recreation
Soccer Fields $1,121,998 Per Field $1,121,998 Per Field Capital Facility Improvement Plan
Multi-Generational Community Center $8,802,605 Per Facility $8,802,605 Per Facility Capital Facility Improvement Plan
Growth Related Percentage 80%80%Frederick County Parks & Recreation
New Regional Library
Growth Related Percentage 28.5%28.5%Handley Regional Library
Additional Units Served (persons)16,000 16,000 Handley Regional Library
Current Cost $5,400,000 Per Facility $5,400,000 Per Facility Capital Facility Improvement Plan
New Rural Branch Library
Growth Related Percentage 29.0%29.0%Handley Regional Library
Additional Units Served (persons)8,000 8,000 Handley Regional Library
Current Cost $2,279,575 Per Facility $2,191,969 Per Facility Capital Facility Improvement Plan
Page 4 Development Impact Model - Critical Input Annual Update May 29, 2012
FY12/13 Projected Impacts Per Dwelling Unit Comparison
July 2011 July 2012
Single Family Dwelling Unit = $ 17,134 $18,507
Town Home Dwelling Unit = $ 12,135 $12,354
Apartment Dwelling Unit = $ 8,633 $ 9,983
The following is a breakdown of the projected impacts per dwelling unit for each capital facility.
Single Family Town home Apartment
Capital facility 2011 2012 2011 2012 2011 2012
Fire And Rescue $679 $574 $502 $425 $511 $432
General Government $50 $50 $38 $38 $38 $38
Public Safety $0 $0 $0 $0 $0 $0
Library $487 $496 $372 $379 $372 $379
Parks and Recreation $1,733 $1,715 $1,325 $1,311 $1,325 $1,311
School Construction $14,185 $15,673 $9,897 $10,201 $6,386 $7,823
Total $17,134 $18,507 $12,135 $12,354 $8,633 $9,983
Development Impact Model
On October 12, 2005, the Frederick County Board of Supervisors directed staff to use the
Development Impact Model (DIM) to project the capital fiscal impacts that would be associated
with any rezoning petitions containing residential development, replacing the existing Capital
Facilities Fiscal Impact Model. The DIM was created by an economic consultant who evaluated
and analyzed development within the County in an effort to assist the County in planning for
future capital facility requirements. Critical inputs to the DIM are to be reviewed and updated
annually to assure that the fiscal projections accurately reflect County capital expenditures.
PENDING The Board of Supervisors authorized use of the annual model update on June
13, 2012.
The DIM projects that, on average, residential development has a negative fiscal impact on the
County’s capital expenditures. As such, all rezoning petitions with a residential component
submitted after July 1, 2012 will be expected to demonstrate how the proposal will mitigate the
following projected capital facility impacts:
Single Family Dwelling Unit = $ 18,507
Town Home Dwelling Unit = $ 12,354
Apartment Dwelling Unit = $ 9,983
The following is a breakdown of the projected impacts per dwelling unit for each capital facility.
Capital facility Single Family Town home Apartment
Fire And Rescue $574 $425 $432
General Government $50 $38 $38
Public Safety $0 $0 $0
Library $496 $379 $379
Parks and Recreation $1715 $1,311 $1,311
School Construction $15,673 $10,201 $7,823
Total $18,507 $12,354 $9,983
The projected capital expenditures depicted above do not include a credit for future real estate
taxes. A “read-only” copy of the Development Impact Model is available on the public
workstation within the Planning and Development’s office. A user manual is also available.
06/05/2012