About Evictions and Code Violations
Landlords have an obligation to keep properties up to code and are prohibited from evicting a tenant for reporting building code violations. This interactive tool allows a user to identify evictions filed within 90 days of a building code violation and parcels with open orders upon eviction filing. At this point, data is not regularly updated like other visualizations on this site. Data was last updated in December 2018.
Map Filter and Selection
- This visualization allows a user to apply a variety of filters to refine the map. Each filter automatically updates the count of evictions filed in the upper right corner. Violation categories filter based on whether a DNS violation contained at least one offense in the selected category. When multiple violation filters are selected, the DNS order that occurred within 90 days before the eviction filing contains each violation type.
Map Tooltip Definitions
- Proximate Eviction: The distance in days between when a DNS order is issued and eviction is filed.
- Lead Plaintiff : Lead plaintiff is the first name in an eviction filing. The owner of a property is not always who is listed as the lead plaintiff in an eviction filing. Commonly filed evictions taken the most frequent lead plaintiff from the previous year.
- Primary Land Use: The City of Milwaukee's Master Property File maintains the primary land use for each parcel. Example categories include single or two family.
- Number of Units: Number of units listed for each parcel.
- Taxkey: Taxkey is a unique ten-digit number assigned to each City of Milwaukee parcel.
Master Property File
Information on current land use and listed property owners retrieved from the City of Milwaukee’s Master Property File (MPROP). MPROP as it is commonly called, is a table containing a record for each property in the city. It contains more than 90 elements of data describing each of the approximately 160,000 properties in the city. More information can be found here.
Eviction data is pulled from the WCCA REST Interface — programmatic access to Wisconsin Circuit Court records. Small claims cases in Milwaukee County with a case type of small claims eviction are pulled down and stored on a weekly basis. CCAP provides no warranties as to the accuracy or timeliness of the information contained in the WCCA Data.
DNS Code Violations
Data is provided via an API that allows a user to regularly pull code violations and service request complaints from DNS record management system accela.
Categorizing Code Violations
How An Eviction Filing is is Matched to a Parcel
- ProPublica’s searchable mapping tool exploring eviction against rent stabilized units influenced our decision to move pass only identifying where an eviction took place. We linked eviction addresses to a City of Milwaukee parcel using an addresse's Taxkey. Taxkey is a unique ten-digit number assigned to each parcel. This allows us to merge additional information around property, ownership, unit size, and building code violations maintained by the City of Milwaukee. Overall, this process produces a 94.8% parcel match rate. This can be benchmarked to Eviction Lab's 93% geocoding match rate — which includes street center line and census tract geocoding.