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711 21st Street
Prairie du Sac WI 53578 US

$2,900,000

Active Listing ID 2009708
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11,020 square feet
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Lot: 2.85 Acres
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Other

$2,900,000

Active Listing ID 2009708
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711 21st Street Truly one-of-a-kind commercial property offering exceptional architectural character and flexible use. Originally designed as the headquarters for a technology company that developed early Electronic Medical Record (EMR) software for nursing homes, the building was intentionally created to feel more like a home than a traditional office.Inspired by a Southern mansion design and built to commercial specifications, the property features expansive windows, grand dual staircases, a gold chandelier, and warm indirect lighting throughout. The layout includes a full kitchen with high-end appliances, three full bathrooms, an elevator servicing all three levels, a theater room, exercise room, balconies, and two porches. Sixteen stately columns define the exterior, and a large standby generator provides added reliability.Situated on approximately 2.8 acres and currently zoned Highway Business. Parcel may offer potential for division, subject to approvals. Due to surrounding residential uses.

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Property Features

  • Facts
  • Lot Size: 2.85 Acres
  • Property Type: Commercial Sale
  • Property Sub-type: Other
  • Features
  • Roof Type: Composition

Property

  • propertytype: Commercial Sale
  • propertysubtype: Other
  • listprice: 2900000
  • unparsedaddress: 711 21st Street
  • postalcity: Prairie du Sac
  • stateorprovince: WI
  • country: US
  • postalcode: 53578
  • bathroomsfull: 0
  • bathroomshalf: 0
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 2.85
  • lotsizeunits: Acres
  • lotsizearea: 2.85
  • livingarea: 11020
  • livingareaunits: Square Feet
  • latitude: 43.294343
  • longitude: -89.747735
  • listagentfullname: Daleen Heffron
  • listagentemail: daleen@bunburyrealtors.com
  • listagentkey: 3yd-SCWMLSWI-6003
  • listagentmlsid: 6003
  • listagentpreferredphone: 6089636023
  • listagentofficephone: 6086438525
  • listofficekey: 3yd-SCWMLSWI-2251
  • listofficemlsid: 2251
  • disclaimer: Copyright © 2026 REALTORS® Association of South Central Wisconsin. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
  • sourcesystemid: SCWMLSWI
  • yearbuilt: 2004
  • listagenturl: www.bunburyrealtors.com
  • countyorparish: Sauk
  • parcelnumber: 172-0936-81510
  • numberofunitstotal: 1
  • fireplaceyn: False
  • transactiontype: ForSale
  • storiestotal: 0
  • parkingtotal: 0
  • roof: Composition
  • waterfrontyn: False
  • franchiseaffiliation: Independent
  • interiorfeatures: Passenger elevator, Private Restrooms, Shared Restrooms, Reception area, Internal sprinkler, Security lighting, Private office(s)
  • securityfeatures: Security Lighting
  • accessibilityfeatures: Accessible Elevator Installed
  • dock: False
  • poolprivateyn: False
  • spayn: False
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: True
  • internetconsumercommentyn: True
  • location: -89.747734, 43.294342
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Bunbury & Assoc, REALTORS", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"daleen@bunburyrealtors.com", "ListBrokerageCity":"Prairie Du Sac", "ListBrokerageCountry":"U", "ListBrokerageEmail":"info@bunburyrealtors.com", "ListBrokerageLogoUrl":"http://lh.rdcpix.com/ff8080811938878f0119390d94e3011ek-c4258878616r.jpg", "ListBrokerageName":"Bunbury & Assoc, REALTORS", "ListBrokeragePhone":"6086438525", "ListBrokeragePostalCode":"53578-2048", "ListBrokerageStateOrProvince":"WI", "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"2000 Prairie St Ste 100 ", "ListBrokerageWebsiteUrl":"www.bunburyrealtors.com", "ListOfficeAddress1":"2000 Prairie St Ste 100 ", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"2251", "ListOfficeCity":"Prairie Du Sac", "ListOfficeCountry":"US", "ListOfficeEmail":"info@bunburyrealtors.com", "ListOfficePostalCode":"53578-2048", "ListOfficeStateOrProvince":"WI", "ListPriceCurrencyType":"USD", "ListingTitle":"Business/Comm, Prairie du Sac, WI", "ListingURL":"https://listings.listhub.net/pages/SCWMLSWI/2009708/?channel=rexren", "MLSModificationTimestamp":"2026-02-14 00:02:09", "Neighborhoods":[{"Description":null, "Name":"PRAIRIE DU SAC - V"}], "PostalCode":null, "RoomCount":null, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":17169, "TaxDescription":null, "TaxYear":"2024"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 9/9/2026 9:03:44 AM GMT
Source Updated Date: 9/10/2026 12:31:23 AM GMT

Courtesy of: Daleen Heffron, Bunbury & Assoc, REALTORS, daleen@bunburyrealtors.com

Copyright © 2026 REALTORS® Association of South Central Wisconsin. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.