Land Use Structures of Loudoun County, VA (July 2016)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Loudoun County, VA Department of Planning & Zoning (P&Z)

Publication_Date: 20161025

Title: Land Use Structures of Loudoun County, VA (July 2016)

Geospatial_Data_Presentation_Form: vector digital data

Description:

Abstract:

This layer identifies existing structures within Loudoun County and their current Land Use, with an initial Residential focus AS OF JULY 1, 2016. The existing structures data source is Loudoun County VA, Office of Mapping & Geographic Information's (OMAGI) addressable structure layer for all of Loudoun County, VA.All residential uses, which includes Single Family, Multi-Family and Group Quarter uses, are specified and existing Commercial structures (Offices, Retail, Medical Offices, Data Centers, etc) are combined into a single Non-Residential use. The other uses specifically identified are Vacant (Address point assigned but no building permit issued), Miscellaneous (no employment generating), and Multi-Use (2 different uses).

Purpose:

This structure data is used for land use, capital facilities, and transportation planning within the County. It is also used for fiscal, demographic, and market analysis of the County. It is also used in determining the current state of Residential development and help assist in guiding future residential development within Loudoun County.

Status:

Maintenance_and_Update_Frequency: Quarterly

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -77.953344

East_Bounding_Coordinate: -77.330341

North_Bounding_Coordinate: 39.321928

South_Bounding_Coordinate: 38.848725

Keywords:

Theme:

Theme_Keyword_Thesaurus: none; employee generated

Theme_Keyword: Land Use, Build Out, Residential, Non-Residential, Vacant

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories

Theme_Keyword: planningCadastre

Access_Constraints: None

Use_Constraints:

The land use data for structures, parcels, projects, and build-out scenarios are developed and maintained by the Department of Planning and Zoning. This data is used for land use, capital facilities, and transportation planning purposes. In addition, it is used for fiscal, demographic, and market analysis. This data is not used for tax assessment purposes. For tax assessment land use data please reference Loudoun County’s tax assessment database.
Every reasonable effort has been made to ensure the accuracy of these data, however accuracy is not guaranteed. Loudoun County does not assume any liability arising from the use of these data or for any errors or omissions on this site. These data are provided without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service.
The Existing and Future Land use Tool (EFL), including the build-out and residential pipeline data contained within it, has been developed based on certain assumptions and scenarios approved by the Board of Supervisors for research and analysis purposes only. It is not intended to give, or deny, any right to landowners and it is not intended to substitute or change in any form the land use process as prescribed in the ordinances and other norms of the County.
Reliance on these data are at the risk of the user.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Loudoun County, VA Department of Planning & Zoning (P&Z)

Contact_Address:

Address_Type: mailing and physical

Address: 1 Harrison St, 3rd Floor

City: Leesburg

State_or_Province: VA

Postal_Code: 20177

Contact_Voice_Telephone: (703) 777-0246

Contact_Facsimile_Telephone: (703) 777-0441

Contact_Electronic_Mail_Address: dop@loudoun.gov

Hours_of_Service: 8:30 am to 5:00 pm, Monday through Friday

Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.3.1.4959

Data_Quality_Information:

Lineage:

Source_Information:

Type_of_Source_Media: None

Source_Contribution:

Board directed work program, on January 21, 2015, for detailed County-wide build-out analysis of residential units and an assessment of the number of Affordable Dwelling Units (ADU) at build-out

Process_Step:

Process_Description:

On January 21, 2015 the Board directed County staff to develop a work program for a detailed County-wide build-out analysis of residential units and an assessment of the number of Affordable Dwelling Units (ADU) at build-out. And then at the October 7, 2015 Business Meeting, the Board approved the residential build-out work plan as recommended by County Staff.
There will be three land use layers created (structures, parcels, and projects) and two build out scenarios (low and high build-out) created in the build out analysis. The first scenario assumes vacant land of approved projects will develop as currently approved. The second scenario assumes the approved projects may not develop as currently approved and that all vacant land with no SFD/SFA suddivision or an approved site plan for multi-family units will develop at planned land uses.
The analysis will also serve as background information for the County's new Comprrehensive Plan update process, whcih started in Fall of 2016.

Process_Date: 20151007

Process_Step:

Process_Description:

This layer originated from a March 28th data download of Loudoun County's address point layer to create the initial Structure Use layer, which would be used in the inital Parcel Use layer. It identifies its existing structure type, structure use, and development status, among other land use characteristtics. At this time, the Commercial use is not speficially identified and all corresponding structures are given a NON-RESIDENTIAL use.
The initial Structure use layer included a cross-check of County Assessor, County Building and Development (B&D) permits, and County Demographic data to create the initial Countywide Structure Use layer to perform verification on. The data was first generated in a tabular format using Microsoft Access to query & return data from the above databases. The table, with X & Y Coordinates, were imported into the ArcGIS environment and a spatial GIS layer created for the Use verification.
The verification process was performed on both a visual and tablulr level to fix any mistakes in the inital Structure Use designation. The visual process involved looking for "oddities" in the data, including a row of SFD structures containing a single SFA structure (& the opposite), a row of MFA structures containing a MFST structure (& the opposite), etc. The tabular level involved checking the layer's attribute table for mistakes, including the following: Assigning the correct use for RES_UNKNOWN, FLAG, & RESMF; changing VACANT with a Building Permit issued to the correct use identified by pemit type; structure with residential or non-residential but no address to determine accuracy; Any community centers, HOA offices, pools, etc assigned a Residential use; and any Farm building coded with a Residential use to name a few.
The County's address point layer contains multiple address points at apartment and condo locations, so a final SDE ready layer was created that combines those multiple address points into a single point with one address. This is done in an Access database so that that the corresponding Housing Unit information can be calculated accurately.

Process_Date: 20160404

Process_Step:

Process_Description:

The original layer was then updated in July, 2016 using the County's address point layer and the Assessment, Building and Development and Demographic data downloaded on June 30th.
The same verification process was followed on new point addresses points created between March 28th and June 30th and the final SDE layer updated following the same process steps.

Process_Date: 20160718

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 133685

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 HARN StatePlane Virginia North FIPS 4501 Feet

Lambert_Conformal_Conic:

Standard_Parallel: 38.03333333333333

Standard_Parallel: 39.2

Longitude_of_Central_Meridian: -78.5

Latitude_of_Projection_Origin: 37.66666666666666

False_Easting: 11482916.66666666

False_Northing: 6561666.666666666

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.0003280833333333333

Ordinate_Resolution: 0.0003280833333333333

Planar_Distance_Units: foot_us

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983 HARN

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Land_Use_Structures_Point

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: LU_GIS_LOUD_ID

Attribute_Definition: Unique Loudoun County GIS Identification Number

Attribute_Definition_Source: Loudoun County, VA

Attribute:

Attribute_Label: LU_ADDRESS

Attribute_Definition: Physical address of structure

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute_Measurement_Frequency: 005

Attribute:

Attribute_Label: LU_MCPI

Attribute_Definition:

Parcel Identification Number (PIN) of parcel containing the structure

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_USE

Attribute_Definition: "Land" use of structure

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: GQ

Enumerated_Domain_Value_Definition: Group Quarter

Enumerated_Domain:

Enumerated_Domain_Value: MISC

Enumerated_Domain_Value_Definition: Miscellaneous

Enumerated_Domain:

Enumerated_Domain_Value: MULTI_USE

Enumerated_Domain_Value_Definition: Multi-Use

Enumerated_Domain:

Enumerated_Domain_Value: NON_RESIDENTIAL

Enumerated_Domain_Value_Definition: Non-Residential

Enumerated_Domain:

Enumerated_Domain_Value: RES_MFA

Enumerated_Domain_Value_Definition: Multi-Family Attached

Enumerated_Domain:

Enumerated_Domain_Value: RES_MFST

Enumerated_Domain_Value_Definition: Multi-Family Stacked

Enumerated_Domain:

Enumerated_Domain_Value: RES_SFA

Enumerated_Domain_Value_Definition: Single Family Attached

Enumerated_Domain:

Enumerated_Domain_Value: RES_SFD

Enumerated_Domain_Value_Definition: Single Family Detached

Enumerated_Domain:

Enumerated_Domain_Value: Vacant

Enumerated_Domain_Value_Definition: Vacant

Attribute:

Attribute_Label: LU_MULTI_USE_SUBCD1

Attribute_Definition: Subcode Use 1 for Multi-Use Structure

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: COM_OFFICE

Enumerated_Domain_Value_Definition: Office use

Enumerated_Domain:

Enumerated_Domain_Value: COM_RETAIL

Enumerated_Domain_Value_Definition: Retail use

Enumerated_Domain:

Enumerated_Domain_Value: RES_MFA

Enumerated_Domain_Value_Definition: Multi-Family Attached (Apartment/Condo) use

Attribute:

Attribute_Label: LU_MULTI_USE_SUBCD2

Attribute_Definition: Subcode Use 2 for Multi-Use Structure

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: n/a

Enumerated_Domain_Value_Definition: Not Available

Enumerated_Domain:

Enumerated_Domain_Value: COM_OFFICE

Enumerated_Domain_Value_Definition: Office use

Enumerated_Domain:

Enumerated_Domain_Value: COM_RETAIL

Enumerated_Domain_Value_Definition: Retail use

Attribute:

Attribute_Label: LU_USE_CONSOLIDATED

Attribute_Definition: Consolidated Use value for ArcGIS online mapping purposes

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_AGE_RESTRICTED

Attribute_Definition: Age Restriction for residential use

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Unrepresentable_Domain: User generated Yes or No

Attribute:

Attribute_Label: LU_DEVELOP_STATUS

Attribute_Definition: Development Status of structure

Attribute_Definition_Source: Loudoun County, VA

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Existing or Permitted

Enumerated_Domain_Value_Definition: Existing structure or not built but has Building Permit issued

Enumerated_Domain:

Enumerated_Domain_Value: Undeveloped

Enumerated_Domain:

Enumerated_Domain_Value: Vacant

Enumerated_Domain_Value_Definition:

Address point assigned but no Building Permit issued for structure

Attribute:

Attribute_Label: LU_USE_SOURCE

Attribute:

Attribute_Label: LU_HUNITS

Attribute_Definition:

Number of Housing Units at Residential Structure (1 for both Single Family uses & more than 1 for both Multi-Family uses)

Attribute_Definition_Source: Loudoun County

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_NON_RES_SQ_FT

Attribute_Definition: Square footage of any non-residental (commercial) building

Attribute_Definition_Source: Loudoun County

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_BP_ISSUE_DATE

Attribute_Definition: Date Building Permit issued

Attribute_Definition_Source: Loudoun County

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_DEMOG_DATE_BUILT

Attribute_Definition: Date structure built from County Demographer data

Attribute_Definition_Source: Loudoun County data

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_DEMOG_YEAR_BUILT

Attribute_Definition: Year structure built from County Demographer data

Attribute_Definition_Source: Loudoun County

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_AS_OF_DATE

Attribute_Definition:

Date that data is current to (when parcel & structure data is downloaded for updates)

Attribute_Definition_Source: Loudoun County

Attribute_Domain_Values:

Unrepresentable_Domain: User generated text

Attribute:

Attribute_Label: LU_X_Coord

Attribute_Definition: X Coordinate of Structure point

Attribute_Definition_Source: Loudoun County

Attribute:

Attribute_Label: LU_Y_Coord

Attribute_Definition: Y Coordinate of Structure point

Attribute_Definition_Source: Loudoun County

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Loudoun County, VA OMAGI

Contact_Position: Front Counter staff

Contact_Address:

Address_Type: mailing and physical

Address: 1 Harrison Street SE, 2nd Floor

City: Leesburg

State_or_Province: VA

Postal_Code: 20175

Contact_Voice_Telephone: (703)771-5778

Contact_Facsimile_Telephone: (703)771-5075

Contact_Electronic_Mail_Address: mapping@loudoun.gov

Hours_of_Service: 8:00-4:30 EST, M-F

Distribution_Liability:

The land use data for structures, parcels, projects, and build-out scenarios are developed and maintained by the Department of Planning and Zoning. This data is used for land use, capital facilities, and transportation planning purposes. In addition, it is used for fiscal, demographic, and market analysis. This data is not used for tax assessment purposes. For tax assessment land use data please reference Loudoun County’s tax assessment database.
Every reasonable effort has been made to ensure the accuracy of these data, however accuracy is not guaranteed. Loudoun County does not assume any liability arising from the use of these data or for any errors or omissions on this site. These data are provided without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service.
The Existing and Future Land use Tool (EFL), including the build-out and residential pipeline data contained within it, has been developed based on certain assumptions and scenarios approved by the Board of Supervisors for research and analysis purposes only. It is not intended to give, or deny, any right to landowners and it is not intended to substitute or change in any form the land use process as prescribed in the ordinances and other norms of the County.
Reliance on these data are at the risk of the user.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI Geodatabase Feature Class

Format_Specification: GDB

Fees:

Loudoun County distributes spatial data in ArcGIS database or shapefile & DXF format for the cost of reproduction. Countywide spatial datasets may be purchased for $22 per DVD for up to 4.5 GB of data. There is a $100 surcharge to purchase countywide topography, and a $3 charge if the item is to be mailed. If the customer wants the data in DXF format and/or would like OMAGI to custom select specific geographic areas of the County, there is an additional $7 per 15 minute increment labor charge. Select aerial imagery is also available.

Ordering_Instructions:

Size limit: 4.5 GB. Visit our website at: <http://www.loudoun.gov/omagi>, click on "Loudoun County Mapping Documents &amp; Order Forms." The "Forms" directory will lead you to custom &amp; standard (countywide) data order forms. Hardcopy maps may also be available; please contact the Mapping Office Public Information Counter for more information regarding all data requests

Metadata_Reference_Information:

Metadata_Date: 20161024

Metadata_Future_Review_Date: 20170131

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Loudoun County, VA Department of Planning & Zoning (P&Z)

Contact_Address:

Address_Type: mailing and physical

Address: 1 Harrison St, 3rd Floor

City: Leesburg

State_or_Province: VA

Postal_Code: 20177

Contact_Voice_Telephone: (703) 777-0246

Contact_Facsimile_Telephone: (703) 777-0441

Contact_Electronic_Mail_Address: dop@loudoun.gov

Hours_of_Service: 8:30 am to 5:00 pm, Monday through Friday

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time