ACTIVE_PARCELS_APN

Citation:

Citation Information:

Title: ACTIVE_PARCELS_APN

Description:

Abstract:
This data layer portrays the tax parcel boundaries in San Mateo County. Lynx Technologies, Inc. compiled this data layer in 2000-2001. Lynx compiled the parcel layer from County AutoCAD drawings and Fire Run maps as well as electronic data supplied by Cities within the County. The final parcel layer was adjusted to best fit the County’s 200-scale orthophotography base. APN attribution is derived from data within the Assessor’s database. Farallon Geographics converted all data from ARC/Info coverages into Oracle Spatial. San Mateo County Assessor Department currently maintains the Parcel layer.
Purpose: This data layer is intended for geographic display and analysis of tax parcel information.
Supplemental Information: This layer is maintained by the San Mateo County Assessor's Office

Time Period of Content:

Currentness Reference: ground condition

Status:

Progress: Complete
Maintenance and Update Frequency: Continually

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -122.50807
East Bounding Coordinate: -122.08482
North Bounding Coordinate: 37.71442
South Bounding Coordinate: 37.10413

Keywords:

Theme:

Theme Keyword Thesaurus: None
Theme Keyword: Parcel
Theme Keyword: Lot
Theme Keyword: Tax
Theme Keyword: Assessor
Theme Keyword: APN

Place:

Place Keyword Thesaurus: San Mateo County
Place Keyword: Atherton
Place Keyword: Belmont
Place Keyword: Brisbane
Place Keyword: Burlingame
Place Keyword: Colma
Place Keyword: Daly City
Place Keyword: East Palo Alto
Place Keyword: Foster City
Place Keyword: Half Moon Bay
Place Keyword: Hillsborough
Place Keyword: Menlo Park
Place Keyword: Millbrae
Place Keyword: Pacifica
Place Keyword: Portola Valley
Place Keyword: Redwood City
Place Keyword: San Bruno
Place Keyword: San Carlos
Place Keyword: San Mateo
Place Keyword: South San Francisco
Place Keyword: Woodside
Place Keyword: San Mateo County

Point of Contact:

Contact Information:

Contact Organization: San Mateo County, Information Services Department (ISD)

Contact Position: County GIS Lead
Contact Address:

Address Type: mailing and physical address
Address: 455 County Center, 3rd floor
City: Redwood City
State or Province: California
Postal Code: 94063
Country: USA

Contact Voice Telephone: (650) 363-4548
Contact Facsimile Telephone: (650) 363-7800

Completeness Report: This data layer contains all tax parcels within the County and is under constant update.
Cloud Cover: 0

Direct Spatial Reference Method: Vector
Point and Vector Object Information:

SDTS Terms Description:

SDTS Point and Vector Object Type: G-polygon
Point and Vector Object Count: 212574

Horizontal Coordinate System Definition:

Planar:

Grid Coordinate System:

Grid Coordinate System Name: State Plane Coordinate System 1983
State Plane Coordinate System:

SPCS Zone Identifier: 403
Lambert Conformal Conic:

Standard Parallel: 37.0666666667
Standard Parallel: 38.4333333333
Longitude of Central Meridian: -120.5
Latitude of Projection Origin: 36.5
False Easting: 2000000
False Northing: 500000

Planar Coordinate Information:

Planar Coordinate Encoding Method: Coordinate Pair
Coordinate Representation:

Abscissa Resolution: 0.3048
Ordinate Resolution: 0.3048

Planar Distance Units: m

Geodetic Model:

Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137
Denominator of Flattening Ratio: 298.257

Detailed Description:

Entity Type:

Entity Type Label: ACTIVE_PARCEL_APN
Entity Type Definition:
This layer is a join of the table that contains active parcel geometries and another containing a list of Assessor Parcel Numbers within the County. The result is the ability to query parcel geometries based on APN.
Attribute:

Attribute Label: APAGE
Attribute Definition: Assessor's parcel book page
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation: Automatically extracted from APN number associated with a parcel.

Attribute:

Attribute Label: APN
Attribute Definition: Assessor's Parcel Number
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation:
APN is always a nine digit entity that indicates Assessor Book, Assessor Book Page and Block, and lot number. Some parcels in the county are owned by a homeowner's association or other common interest and therefore no single tax bill is assigned for that parcel. Instead, the value of the common parcel is dispursed among landowners within the common interest. Such parcels are denoted within the database as APN = XXXXXX999, XXXXXX998 - in sequential descending order on any one Assessor book page. Therefore, some parcels will be attributed as XXXXXX999. These parcels will not link to any existing data, as their respective APNs are little more than placeholders.
Attribute Measurement Frequency: As needed

Attribute:

Attribute Label: APN_FLAG

Attribute:

Attribute Label: AREA
Attribute Definition: Auto-calculated field indicating approximate square area in feet.
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation: This is not survey/engineering grade data. Intended only for large scale, generalized analysis.

Attribute:

Attribute Label: BLOCK
Attribute Definition: Assessor Parcel Page Block number.
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation: Automatically extracted from APN number associated with a parcel.

Attribute:

Attribute Label: BOOK
Attribute Definition: Assessor Parcel Book Number
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation: Automatically extracted from APN number associated with a parcel.

Attribute:

Attribute Label: LOT
Attribute Definition: Assessor parcel lot number
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation: Automatically extracted from APN number associated with a parcel.

Attribute:

Attribute Label: PARCEL_ID
Attribute Definition: Primary key. Arbitrary unique number used for database identification and indexing.

Attribute:

Attribute Label: PERIMETER
Attribute Definition: Auto-calculated field indicating approximate perimeter in feet.
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation: This is not survey/engineering grade data. Intended only for large scale, generalized analysis.

Attribute:

Attribute Label: PROPERTY_REVIEW
Attribute Definition: Provides a link that allows a Geomedia user to, in one step, launch a web browser, and connect to the Property Review Report for that parcel.
Attribute Value Accuracy Information:

Attribute Value Accuracy Explanation: Built based on APN.

Attribute:

Attribute Label: RETIRE_DATE
Attribute Definition: Retire Date. Parcel is defined as active if this field is null. Parcel maintenance process includes date stamping this field when parcel is retired.

Attribute:

Attribute Label: REV_DATE
Attribute Definition: Review Date

Attribute:

Attribute Label: SBE_NO
Attribute Definition: State Board of Equalization Number. Some parcels have numbers assigned by the SBE. Such parcels are attributed here.

Attribute:

Attribute Label: SRC_AGENCY
Attribute Definition: Source Agency

Attribute:

Attribute Label: SRC_COMMENT
Attribute Definition: Source Comment

Attribute:

Attribute Label: SRC_CTRL_SCALE
Attribute Definition: Source Control Scale

Attribute:

Attribute Label: SRC_DATE
Attribute Definition: Source Date

Attribute:

Attribute Label: SRC_DOC
Attribute Definition: Source Document

Attribute:

Attribute Label: SRC_FINL_SCALE
Attribute Definition: Source Final Scale

Attribute:

Attribute Label: SUBLOT
Attribute Definition: Sublot

Attribute:

Attribute Label: TRACT_ID
Attribute Definition: Tract ID

Attribute:

Attribute Label: TRANSFER
Attribute Definition: Transfer

Overview Description:

Entity and Attribute Overview: Gives a user the ability to search for a situs address based on APN or values extracted from APN.

Distributor:

Contact Information:

Contact Organization: San Mateo County, Information Services Deparment (ISD)

Contact Position: County GIS Lead
Contact Address:

Address Type: mailing and physical address
Address: 455 County Center, 3rd floor
City: Redwood City
State or Province: California
Postal Code: 94063
Country: USA

Contact Voice Telephone: (650) 363-4548
Contact Facsimile Telephone: (650) 363-7800

Fees: To be determined
Ordering Instructions: County GIS Lead.
Turnaround: Unknown

Metadata Date: 5/14/2010
Metadata Review Date:
Metadata Future Review Date:
Metadata Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: San Mateo County, Information Services Department (ISD)

Contact Position: County GIS Lead
Contact Address:

Address Type: mailing and physical address
Address: 455 County Center, 3rd floor
City: Redwood City
State or Province: California
Postal Code: 94063
Country: USA

Contact Voice Telephone: (650) 363-4548
Contact Facsimile Telephone: (650) 363-7800