Prop13 Subsidy Mapping Project: Difference between revisions

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[[File:Kim-Mai Cutler on Twitter EMP.jpg|thumb|right|400px|it's cookin' on Twittah]]In[names thefor Baythis Areabeing anddebated: California, like other high-growth regions around the world, there have been dramatic rises in property values in recent decades. In California, the [[Proposition 13]] tax-limitationSubsidy measure of 1978 means that the longer someone has owned propertyMap, theProposition lower13 theirEquity taxMapping rateProject..?]. 
 
Suggested hashtag: [https://twitter.com/search?f=tweets&q=#Prop13mapping&src=typd #Prop13mapping].<br/> Project Twitter account: [https://twitter.com/Equity_Map @Equity_Map].
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== &nbsp;Overview ==
'''Equity Mapping Project '''&nbsp;(provisional name) is a project to map and visualize
 
In the Bay Area and California, like other high-growth regions around the world, there have been dramatic rises in property values in recent decades. Additionally, in&nbsp;California, the&nbsp;[[Proposition_13|Proposition 13]] tax-limitation measure of 1978 means that there are sometimes large disparities in the effective tax rate paid by residential property owners vis a vis estimated property market values and a situation in which those owning for longer pay&nbsp;lower property taxes.&nbsp;
#housing property equity gains
#disparities&nbsp;between taxable (assessed) and actual (estimated market) value
 
[[File:California-Median-Home-Price-Map.png|text-bottom|486x468px|Image Source: GeoCurrents.info http://www.geocurrents.info/wp-content/uploads/2016/01/California-Median-Home-Price-Map.png|link=http://www.geocurrents.info/wp-content/uploads/2016/01/California-Median-Home-Price-Map.png]]
particularly in San Francisco, the Bay Area, and California.&nbsp;
 
<span style="font-size:smaller;">[Image Source: GeoCurrents.info&nbsp;[http://www.geocurrents.info/wp-content/uploads/2016/01/California-Median-Home-Price-Map.png http://www.geocurrents.info/wp-content/uploads/2016/01/California-Median-Home-Price-Map.png]]</span>
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'''Equity Mapping Project '''&nbsp;(provisional name) is a project to map and visualize&nbsp;
 
#housingHousing property equity wealth&nbsp;gains
#Proposition 13 tax subsidies, i.e. disparities&nbsp;between taxable (assessed) and actual (estimated market) value
 
Geographic focus of the project: San Francisco, the Bay Area, and California (i.e. the jurisdictions affected by Proposition 13).&nbsp;
 
== Background&nbsp; ==
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[[File:Equity-Mapping-Project-tweets-2016.jpg|RTENOTITLE]]
 
seeSee also,
 
'''&nbsp;threadThread&nbsp;5 Sep 2016: &nbsp;'''
 
[https://twitter.com/allafarce '''Dave Guarino'''‏&nbsp;@'''allafarce''']<br/> Has anyone already done a property-level view of Prop 13 assessed/market values? Seems like data is there. [https://twitter.com/kimmaicutler <s>@</s>'''kimmaicutler'''] [https://twitter.com/markasaurus <s>@</s>'''markasaurus''']<br/> [https://twitter.com/allafarce/status/772842611426099200 https://twitter.com/allafarce/status/772842611426099200]
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<br/> 31 May 2017<br/> [https://twitter.com/tmccormick/status/869861018377134080 https://twitter.com/tmccormick/status/869861018377134080]
 
== Name ideasIdeas ==
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== Name ideas ==
 
note from a project member:&nbsp;
Line 51:
Property Gains and Tax Subsidies Map
 
== Data and Mapping Resources ==
&nbsp;
 
*'''San Francisco Indicator Project Geographic Boundaries Interactive Map''' - This allows overlays of various divisions (Toggle Layers in Top Nav). Speaks to our question of what areas to define within the City. Possible divisions: Analysis Neighborhoods, Planning Neighborhoods, Supervisor Districts, 2010 Census Tracts, Zip Codes, Census Tracts 2000, CTA TAZ Districts, Voting Precincts, Police Department Districts, School Attendance Areas...NOTE: Planning Districts for the most part respect the Census 2010 tract boundaries. [http://sfgov.maps.arcgis.com/apps/OnePane/basicviewer/index.html?appid=e4927a261ae044959ec4d4932b047ff8 http://sfgov.maps.arcgis.com/apps/OnePane/basicviewer/index.html?appid=e4927a261ae044959ec4d4932b047ff8]
== &nbsp; ==
*'''The San Francisco Indicator Project''' - The San Francisco Indicator Project is a neighborhood-level data system that measures how San Francisco performs in eight dimensions of a healthy, equitable community. The goal of this project is to support collaboration, planning, decision making, and advocacy for social and physical environments that meet the needs of all citizens. [http://www.sfindicatorproject.org/ http://www.sfindicatorproject.org/]
 
*'''Property Location Map Search''' (San Francisco) Search by specific address or by pressing parcel on the map. A lot of information including parcel numbers on tabs [http://propertymap.sfplanning.org/?name=sffind http://propertymap.sfplanning.org/?name=sffind]
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*'''Map of San Francisco Assessor Blocks''' [https://data.sfgov.org/Geographic-Locations-and-Boundaries/San-Francisco-Assessor-Blocks/ndp2-nsue https://data.sfgov.org/Geographic-Locations-and-Boundaries/San-Francisco-Assessor-Blocks/ndp2-nsue]
 
*'''San Francisco Open Data - Assessor-Recorder Data''' [https://data.sfgov.org/browse?Department-Metrics_Publishing-Department=Assessor-Recorder https://data.sfgov.org/browse?Department-Metrics_Publishing-Department=Assessor-Recorder]
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*'''San Francisco Assessments by Year and Neighborhood Code''' [https://data.sfgov.org/Housing-and-Buildings/Assessments-by-Year-and-Neighborhood-Code/qxzx-hau5 https://data.sfgov.org/Housing-and-Buildings/Assessments-by-Year-and-Neighborhood-Code/qxzx-hau5]
*'''San Francisco - Historic Secured Property Tax Rolls 2007-2016 '''[https://data.sfgov.org/Housing-and-Buildings/Historic-Secured-Property-Tax-Rolls/wv5m-vpq2/data https://data.sfgov.org/Housing-and-Buildings/Historic-Secured-Property-Tax-Rolls/wv5m-vpq2/data]
*'''San Francisco City Lots - Assessor Parcels Map''' [https://data.sfgov.org/Geographic-Locations-and-Boundaries/City-Lots/45et-ht7c https://data.sfgov.org/Geographic-Locations-and-Boundaries/City-Lots/45et-ht7c]
*'''SF Authority Housing Parcels''' [https://data.sfgov.org/Housing-and-Buildings/SF-Housing-Authority-Parcels/npvu-t8ed https://data.sfgov.org/Housing-and-Buildings/SF-Housing-Authority-Parcels/npvu-t8ed]
*'''Alameda County - Property Assessment Information''' [http://acgov.org/MS/prop/index.aspx http://acgov.org/MS/prop/index.aspx]
*'''Office of the Assessor, County of Santa Clara, CA '''(Property search by address, parcel number and map) [https://www.sccassessor.org/index.php/online-services/property-search/real-property https://www.sccassessor.org/index.php/online-services/property-search/real-property] [https://www.sccassessor.org/index.php/online-services/property-search/search-by-map https://www.sccassessor.org/index.php/online-services/property-search/search-by-map]
*'''County of San Mateo, CA - Property Tax and Assessment Lookup''' (by parcel number or address) [http://www.sanmateocountytaxcollector.org/SMCWPS/pages/secureSearch.jsp http://www.sanmateocountytaxcollector.org/SMCWPS/pages/secureSearch.jsp]
*'''California Association of Realtors - Up-to-Date County Property Sales Information including Median Home Pricing''' (with percentage changes) [http://www.car.org/marketdata/data/countysalesactivity/ http://www.car.org/marketdata/data/countysalesactivity/]
*'''California Association of Realtors - Historical Data '''[http://www.car.org/marketdata/data/housingdata/ http://www.car.org/marketdata/data/housingdata/]
*'''Comparing Home Values and Trends between San Francisco Neighborhoods''' (Paragon Real Estate Group - Data from MLS via Infosparks) [https://www.paragon-re.com/trend/san-francisco-multi-neighborhood-comparison-charts https://www.paragon-re.com/trend/san-francisco-multi-neighborhood-comparison-charts]
*'''Bay Area Real Estate Market Survey''' (Paragon Real Estate Group - Updated) [https://www.paragon-re.com/trend/bay-area-market-survey https://www.paragon-re.com/trend/bay-area-market-survey]
*'''California Association of Realtors - Interactive Map - Current County Sales and Price with County Rankings''' (Can choose metrics like median price and percent equity sales) [http://www.car.org/marketdata/interactive/map http://www.car.org/marketdata/interactive/map]
*'''San Francisco Rental Market Trends - Detailed Breakdown''' [https://www.rentcafe.com/average-rent-market-trends/us/ca/san-francisco/ https://www.rentcafe.com/average-rent-market-trends/us/ca/san-francisco/]
*'''Property Tax 101: San Francisco County California Property Tax''' (Gives median property tax and median property tax as percentage of home value, median home value and median income) [https://www.propertytax101.org/california/sanfranciscocounty https://www.propertytax101.org/california/sanfranciscocounty]
*'''Tax Foundation - Median Property Taxes by County 2016''' (with interactive maps) [https://taxfoundation.org/median-property-taxes-county/ https://taxfoundation.org/median-property-taxes-county/]
*'''Most Expensive Zip Codes for Renters Interactive Map''' (zoom into San Francisco or other municipality and click for average rent by&nbsp;zip&nbsp;code; also includes a table with SF Bay zip codes listed) [https://www.rentcafe.com/blog/rental-market/real-estate-news/expensive-zip-codes-u-s/ https://www.rentcafe.com/blog/rental-market/real-estate-news/expensive-zip-codes-u-s/]
*'''Zillow - San Francisco Home Prices and Values''' [https://www.zillow.com/san-francisco-ca/home-values/ https://www.zillow.com/san-francisco-ca/home-values/]
*'''Real Estate Data for San Francisco - Trulia''' [https://www.trulia.com/real_estate/San_Francisco-California/market-trends/ https://www.trulia.com/real_estate/San_Francisco-California/market-trends/] #sf #housing-market
*'''Census 2010 San Francisco Tracts Map '''[https://data.sfgov.org/Geographic-Locations-and-Boundaries/Census-2010-Tracts-for-San-Francisco/rarb-5ahf https://data.sfgov.org/Geographic-Locations-and-Boundaries/Census-2010-Tracts-for-San-Francisco/rarb-5ahf]
*'''Census 2010 San Francisco Census Blocks Map''' [https://data.sfgov.org/Geographic-Locations-and-Boundaries/Census-2010-Blocks-for-San-Francisco/2uzy-uv2r https://data.sfgov.org/Geographic-Locations-and-Boundaries/Census-2010-Blocks-for-San-Francisco/2uzy-uv2r]
*'''San Francisco Census Tracts Assigned to San Francisco Neighborhoods''' (City-compiled map) [https://data.sfgov.org/Geographic-Locations-and-Boundaries/Analysis-Neighborhoods-2010-census-tracts-assigned/bwbp-wk3r https://data.sfgov.org/Geographic-Locations-and-Boundaries/Analysis-Neighborhoods-2010-census-tracts-assigned/bwbp-wk3r]
*'''San Francisco Neighborhood Map''' [http://sfgov.org/elections/sites/default/files/Documents/Maps/NeighborhoodPctMap_5-2017.pdf http://sfgov.org/elections/sites/default/files/Documents/Maps/NeighborhoodPctMap_5-2017.pdf]
*'''San Francisco Analysis Neighborhoods'''&nbsp;[https://data.sfgov.org/Geographic-Locations-and-Boundaries/Analysis-Neighborhoods/p5b7-5n3h https://data.sfgov.org/Geographic-Locations-and-Boundaries/Analysis-Neighborhoods/p5b7-5n3h]
*'''San Francisco Supervisor District to&nbsp;Zip&nbsp;Code List '''[https://data.sfgov.org/Geographic-Locations-and-Boundaries/Supervisor-District-to-ZIP-Code-Crosswalk/v22h-ujnv/data https://data.sfgov.org/Geographic-Locations-and-Boundaries/Supervisor-District-to-ZIP-Code-Crosswalk/v22h-ujnv/data]
*'''California Census Viewer''' (Interactive Map - Census 2000 and 2010) [http://california.us.censusviewer.com/client http://california.us.censusviewer.com/client]
*'''San Francisco Parcel-level Land Use Map'''&nbsp;[https://data.sfgov.org/Housing-and-Buildings/Land-Use/us3s-fp9q https://data.sfgov.org/Housing-and-Buildings/Land-Use/us3s-fp9q]
*'''San Francisco Zip Codes Map''' (with clickable statistics) [https://data.sfgov.org/Geographic-Locations-and-Boundaries/San-Francisco-ZIP-Codes/srq6-hmpi https://data.sfgov.org/Geographic-Locations-and-Boundaries/San-Francisco-ZIP-Codes/srq6-hmpi]
*'''Bay Area Zip Codes Map''' (with clickable statistics) [https://data.sfgov.org/Geographic-Locations-and-Boundaries/Bay-Area-ZIP-Codes/u5j3-svi6 https://data.sfgov.org/Geographic-Locations-and-Boundaries/Bay-Area-ZIP-Codes/u5j3-svi6]
 
== References ==
 
*Anti-Eviction Mapping Project.&nbsp;[http://www.antievictionmap.com/ [2]].<br/> &nbsp;
*Franklin, Zach. "[http://www.berkeleyside.com/2016/12/15/passing-the-torch-intergenerational-equity-and-the-housing-crisis/ Op-ed: Passing the torch – Intergenerational equity and t]he housing crisis." ''Berkleyside'', Dec. 15, 2016.&nbsp;[http://www.berkeleyside.com/2016/12/15/passing-the-torch-intergenerational-equity-and-the-housing-crisis/ http://www.berkeleyside.com/2016/12/15/passing-the-torch-intergenerational-equity-and-the-housing-crisis/].<br/> ''"My suggestion: a “Pay It Forward” program where homeowners give back a portion of their Prop. 13 subsidies to the Housing Trust Fund, with low-income homeowners exempted. If state law says it can’t be a formal property tax, we could just send folks an invoice, and assume their progressive Berkeley values will compel them to do the right thing. Some back-of-the-envelope math indicates that well-off, long-time homeowners sharing a quarter of their subsidies could raise over $15 million annually for affordable housing – five times more than Measure U1. We can leverage that with county, state and federal dollars many times over to fuel a massive affordable housing renaissance in Berkeley, and demonstrate a model that could generate billions statewide."''<br/> &nbsp;
*Property Shark. Los Angeles County Property Tax Map:&nbsp;[https://www.propertyshark.com/mason/ca/Los-Angeles-County/Maps/Property-Tax-Sqft-Map. https://www.propertyshark.com/mason/ca/Los-Angeles-County/Maps/Property-Tax-Sqft-Map.&nbsp;]
 
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