To pull up a Madison tax map, use one of two free online tools: the City of Madison Assessor’s Property Lookup at cityofmadison.com/assessor/property/ for assessment and tax data on a specific parcel, or Dane County’s DCiMap at dcimapapps.danecounty.gov/dcmapviewer/ for a visual map showing parcel boundaries and lot lines. Both let you search by street address, owner name, or parcel identification number, and both cover every property inside the city.
City Assessor’s Property Lookup
The City Assessor’s Property Lookup is the fastest route to tax and assessment information for a single parcel. The tool offers four search methods: by street address, by address range, by owner’s last name, or by parcel number.1City of Madison. Property Look-up – City Assessor
When you search by address, enter the house number and street name, then pick the street type from the dropdown. Don’t type out “Street” or “Avenue” yourself; the system uses abbreviations like St, Ave, Blvd, and Ct from a preset list. If nothing comes back, check that you selected the right street type and the correct direction prefix (N, S, E, or W). The owner search only needs a last name, which helps when you know who owns a property but not the exact address.
Each result shows the current assessed value, property classification, lot size, and tax payment history. This is the same data the Assessor uses to calculate the annual property tax bill. The 2026 assessment notices were mailed May 1, and the updated figures went online May 2.2City of Madison. Assessor’s Office
Dane County DCiMap for Parcel Boundaries
If you want to see parcel lines, lot dimensions, and how a property sits in its neighborhood, use DCiMap. It covers every property in Dane County, Madison included.3Dane County. DCiMap Online Mapping Application
DCiMap is interactive. You can zoom into a single parcel or pull back for a neighborhood view, and you can toggle data layers on and off over the base parcel map. Available layers include recent and historical aerial photos, parks and recreation areas, soils and elevation data, lakes, streams, wetlands, and parcel boundaries.3Dane County. DCiMap Online Mapping Application The viewer also lets you print or export the current map, which is useful when you need something to hand a contractor or bring to a planning meeting.
For documents tied to a parcel, like deeds, plats, and certified survey maps, Dane County’s Access Dane portal at accessdane.danecounty.gov has a separate land records search by owner, address, parcel number, or legal description.4Dane County. Land Records Search – Access Dane
Madison Parcel Numbers Have a New Format
Every Madison property carries a parcel identification number (PIN) that identifies it in city and county records. Dane County recently moved from a two-digit municipal code prefix to a three-digit one, so current PINs are longer than those on older paperwork. A parcel formerly listed as 14-0610-8660-8, for example, now appears as 028-0610-013-8660-8.5Dane County Register of Deeds. Parcel Info
When you search by parcel number, use the version from your most recent tax bill or deed, not an old one. Entering an outdated number into either the city or the county tool will usually return nothing. You can find the current PIN on your annual tax bill, on any recent deed recorded with the Register of Deeds, or by running an address search in the City Assessor’s Property Lookup.
What a Tax Map Is Not
Madison’s tax maps show approximate parcel boundaries, lot dimensions, acreage, and the location of each property relative to streets and neighbors. They are not boundary surveys. The Wisconsin Statewide Parcel Map carries an explicit disclaimer that only a licensed surveyor can delineate legal boundaries.6Wisconsin State Cartographer’s Office. Wisconsin Statewide Parcel Map – 2025 If you’re building a fence, adding a structure, or settling a line dispute with a neighbor, pay for a licensed survey. A DCiMap printout can leave you with an encroachment and the cost of removing whatever you built on someone else’s land.
If the Map or Assessment Looks Wrong
If the tax map shows the wrong lot dimensions, the square footage of your home is overstated, or recent comparable sales suggest your assessed value is too high, Madison has a structured appeal process with firm deadlines.
Open Book
Start with the Open Book period. For 2026 it runs May 4 through May 8. During Open Book you can review your assessment record with the Assessor’s office, and if factual details are wrong (lot size, building characteristics, property classification) the office will correct them and adjust the assessment on the spot.7City of Madison. Open Book and Assessment Appeals No formal hearing required. This is the fastest fix.
Board of Assessors Objection
If the dispute is about market value rather than a factual detail, file a formal objection with the Board of Assessors. The 2026 deadline is Friday, May 15 at 4:30 p.m. Miss it and you’ll need a waiver from the Board of Review, which isn’t guaranteed.7City of Madison. Open Book and Assessment Appeals
Bring evidence: recent comparable sales in your neighborhood, photos of condition or damage, contractor estimates for needed repairs, or a professional appraisal.7City of Madison. Open Book and Assessment Appeals
Further Appeals
If the Board of Assessors doesn’t resolve things, the next level is the Board of Review, a panel of appointed Madison residents that issues binding determinations on assessed value. You must notify the Board of Review clerk of your intent to object at least 48 hours before its first scheduled meeting. Beyond that, Wisconsin law allows a complaint to the Department of Revenue within 20 days of the Board’s determination or an appeal to circuit court within 90 days.8Wisconsin Department of Revenue. 2026 Guide for Board of Review Members Most residential disputes resolve at Open Book or the Board of Assessors.
Getting a Printed Copy
The cheapest way to get a paper tax map is to print or export one directly from DCiMap at no cost. When a digital printout won’t satisfy a lender or a planning board, visit the City Assessor’s office at 210 Martin Luther King Jr. Blvd., Room 107, Madison, WI 53703, open Monday through Friday from 8:00 a.m. to 4:30 p.m.2City of Madison. Assessor’s Office Dane County’s Land Information Office also maintains tax mapping data and may fulfill requests for county-level parcel maps.
Fees depend on the format. Dane County charges 25 cents per page for standard single-sided copies of public records, and fees over $5 are due in advance.9Dane County. County Clerk Request Form Large-format plat maps and specialized GIS prints usually cost more. Call ahead to confirm pricing and turnaround.