Mandatory Housing Affordability (MHA) Fee Areas

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 InspectionsFor properties subject to Mandatory Housing Affordability, the fee areas map specifies the locational dimension of the MHA requirement.  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.  For properties subject to MHA, the fee areas map specifies the locational dimension of the MHA requirement.  MHA amounts in Downtown and South Lake Union have specific requirement levels for each zone as listed in SMC 23.58B and 23.58C. For other areas, the relative high, medium or low aspect of the MHA requirement corresponds to market strength area of the city.  

Data and Resources

Additional Info

Field Value
Source https://cos-data.seattle.gov/resource/9i6k-mu7s
Author Allen Grissom
Last Updated July 22, 2025, 19:44 (UTC)
Created July 22, 2025, 19:44 (UTC)
Contact Email mailto:mapgis.mapgis@seattle.gov
Contact Name Planning_SeattleCityGIS
Geographic Coverage -122.4308,47.4933,-122.2421,47.7359
Homepage https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::mandatory-housing-affordability-mha-fee-areas
Issued 2020-01-05T16:43:10.000Z
Last Update 2022-06-14T19:10:17.723Z
License https://opendatacommons.org/licenses/pddl/summary
Public Access Level public
Publisher City of Seattle ArcGIS Online
Theme geospatial
Unique Identifier https://www.arcgis.com/home/item.html?id=f0ec3640acef4a029ccb7eaa9de43eef&sublayer=0
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