Mandatory Housing Affordability (MHA) Zones

Note:  This map is not an official zoning map.  For precise zoning information, please call or visit the Seattle Municipal Tower, Seattle Department of Construction and InspectionsZoning areas where Mandatory Housing Affordability requirements may apply.Mandatory Housing Affordability requires new development to contribute to affordable housing by including affordable housing in the development or making a payment to the City’s Office of Housing to support affordable housing. The amount of the MHA contribution varies based on a property’s location and other factors specified in Seattle Municipal Code Chapters 23.58B and 23.58C.  

Data and Resources

Field Value
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issued 2020-01-05
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metadata_type geospatial
modified 2022-06-23
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publisher City of Seattle GIS Program
resource-type Dataset
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theme {geospatial}
Groups
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  • National Provider
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Tags
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  • amerigeoss
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  • geo
  • geoss
  • land-use
  • mha
  • national
  • north-america
  • planning
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  • zoning
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maintainer Planning_SeattleCityGIS
maintainer_email mapgis.mapgis@seattle.gov
metadata_created 2025-11-21T20:20:51.992819
metadata_modified 2025-11-21T20:20:51.992823
notes <div><span style='font-size:16px;'>Note:  This map is not an official zoning map.  For precise zoning information, please call or visit the Seattle Municipal Tower, </span><a href='https://www.seattle.gov/sdci/about-us' rel='nofollow ugc' style='font-size:12pt;' target='_blank'>Seattle Department of Construction and Inspections</a><br /></div><div><br /></div>Zoning areas where Mandatory Housing Affordability requirements may apply.<div><br /></div><div>Mandatory Housing Affordability requires new development to contribute to affordable housing by including affordable housing in the development or making a payment to the City’s Office of Housing to support affordable housing. The amount of the MHA contribution varies based on a property’s location and other factors specified in Seattle Municipal Code Chapters 23.58B and 23.58C.  </div>
num_resources 6
num_tags 13
title Mandatory Housing Affordability (MHA) Zones