Chapter 70

70.27(6) (6) Monuments, plat requirements. The provisions of s. 236.15 as to monuments, and the provisions of s. 236.20 as to form and procedure, insofar as they are applicable to the purposes of assessors’ plats, shall apply. Any stake or monument found and accepted as correct by a professional land surveyor laying out an assessor’s plat shall be indicated as “stake found” or “monument found” when mapping the plat and such stake or monument shall not be removed or replaced even though it is inconsistent with the standards of s. 236.15.

70.27(7) (7) Certificate. When completed, the assessor’s plat shall be filed with the clerk of the governing body that ordered the plat. On its title page shall appear the sworn certificate of the professional land surveyor who made the plat, which shall state and contain:

70.27(7)(a) (a) The name of the governing body by whose order the plat was made, and the date of the order.

70.27(7)(b) (b) A clear and concise description of the land or the land and the buildings, improvements, and fixtures on that land so surveyed and mapped, by government lot, quarter quarter-section, township, range and county, or if located in a city or village or platted area, then according to the plat; otherwise by metes and bounds beginning with some corner marked and established in the United States land survey.

70.27(7)(c) (c) A statement that the plat is a correct representation of all the exterior boundaries of the land surveyed and each parcel thereof.

70.27(7)(d) (d) A statement that the professional land surveyor has fully complied with the provisions of this section in filing the same.

70.27(8) (8) Plat filed with governing body. Within 2 days after the assessor’s plat is filed with the governing body, it shall be transmitted to the department of administration by the clerk of the governing body which ordered the plat. The department of administration shall review the plat within 30 days of its receipt. No such plat may be given final approval by the local governing body until the department of administration has certified on the face of the original plat that it complies with the applicable provisions of ss. 236.15 and 236.20. After the plat has been so certified the clerk shall promptly publish a class 3 notice thereof, under ch. 985. The plat shall remain on file in the clerk’s office for 30 days after the first publication. At any time within the 30-day period any person or public body having an interest in any lands affected by the plat may bring a suit to have the plat corrected. If no suit is brought within the 30-day period, the plat may be approved by the governing body, and filed for record. If a suit is brought, approval shall be withheld until the suit is decided. The plat shall then be revised in accordance with the decision if necessary, and, without rereferral to the department of administration unless rereferral is ordered by the court. The plat may then be approved by the governing body and filed for record. When so filed the plat shall carry on its face the certificate of the clerk that all provisions of this section have been complied with. When recorded after approval by the governing body, the plat shall have the same effect for all purposes as if it were a land division plat made by the owners in full compliance with ch. 236. Before January 1 of each year, the register of deeds shall notify the town clerks of the recording of any assessors’ plats made or amended during the preceding year, affecting lands in their towns.

70.27 History History: 1977 c. 29 s. 1646 (3); 1979 c. 221, 248, 355, 361; 1983 a. 473; 1987 a. 172; 1989 a. 31, 56; 1991 a. 316; 1995 a. 27 ss. 3361, 3362, 9116 (5); 1997 a. 27, 99; 1999 a. 96; 1999 a. 150 s. 672; 2005 a. 41, 254; 2013 a. 358; 2017 a. 102; 2023 a. 12.

70.27 Cross-reference Cross-reference: See also ch. Adm 49, Wis. adm. code.

70.27 Annotation The reference to s. 66.60 [now s. 66.0703] in sub. (1) refers only to the collection procedures; it does not make all of that section apply. Dittner v. Town of Spencer, 55 Wis. 2d 707, 201 N.W.2d 45 (1972).

70.27 Annotation The division of a lot within an assessor’s plat is an amendment of the plat and must be made by following the procedure under this section. Ahlgren v. Pierce County, 198 Wis. 2d 576, 543 N.W.2d 812 (Ct. App. 1995), 95-2088.

70.27 Annotation The provisions of s. 236.41 relating to vacation of streets are inapplicable to assessors’ plats. Once properly filed and recorded, an assessor’s plat becomes the operative document of record, and only sections specified in s. 236.03 (2) apply to assessors’ plats. Schaetz v. Town of Scott, 222 Wis. 2d 90, 585 N.W.2d 889 (Ct. App. 1998), 98-0841.

70.27 Annotation Section 236.03 (2) sets forth the “applicable provisions” of ss. 236.15 and 236.20 with which assessors’ plats must comply under sub. (8). A determination by the state under sub. (8) that an assessor’s plat does not comply with the applicable provisions of ss. 236.15 and 236.20 may be reviewed under ch. 227. 58 Atty. Gen. 198.

70.27 Annotation The temporary survey monuments required to be set in the field prior to the submission of an assessor’s plat for state level review are not made permanent until the recording of the assessor’s plat. 59 Atty. Gen. 262.

70.27 Annotation Section 236.295 does not apply to assessors’ plats. The amendment or correction of an assessor’s plat under sub. (4) is an exercise of the police power that is accomplished for the same purposes and in the same manner as the original assessor’s plat. The governing body involved is not required to conduct a public hearing concerning a proposed amendment or correction to an assessor’s plat of record. Other questions concerning the amendment or correction of an assessor’s plat are answered. 61 Atty. Gen. 25.

70.28 70.28 Assessment as one parcel. No assessment of real property which has been or shall be made shall be held invalid or irregular for the reason that several lots, tracts or parcels of land have been assessed and valued together as one parcel and not separately, where the same are contiguous and owned by the same person at the time of such assessment.

70.29 70.29 Personalty, how entered. For assessments made before January 1, 2024, the assessor shall place in one distinct and continuous part of the assessment roll all the names of persons assessed for personal property, with a statement of such property in each village in the assessor’s assessment district, and foot up the valuation thereof separately; otherwise the assessor shall arrange all names of persons assessed for personal property on the roll alphabetically so far as convenient. The assessor shall also place upon the assessment roll, in a separate column and opposite the name of each person assessed for personal property, the number of the school district in which such personal property is subject to taxation.

70.29 History History: 1991 a. 316; 2023 a. 12.

70.30 70.30 Aggregate values. For assessments made before January 1, 2024, every assessor shall ascertain and set down in separate columns prepared for that purpose on the assessment roll and opposite to the names of all persons assessed for personal property the number and value of the following named items of personal property assessed to such person, which shall constitute the assessed valuation of the several items of property therein described, to wit:

70.30(9) (9) The number and value of steam and other vessels.

70.30(11) (11) The value of machinery, tools and patterns.

70.30(12) (12) The value of furniture, fixture and equipment.

70.30(13) (13) The value of all other personal property except such as is exempt from taxation.

70.30 History History: 1981 c. 20; 1983 a. 27 s. 2202 (45); 1983 a. 405; 1991 a. 39; 2023 a. 12.

70.32 70.32 Real estate, how valued.

70.32(1) (1) Real property shall be valued by the assessor in the manner specified in the Wisconsin property assessment manual provided under s. 73.03 (2a) from actual view or from the best information that the assessor can practicably obtain, at the full value which could ordinarily be obtained therefor at private sale. In determining the value, the assessor shall consider recent arm’s-length sales of the property to be assessed if according to professionally acceptable appraisal practices those sales conform to recent arm’s-length sales of reasonably comparable property; recent arm’s-length sales of reasonably comparable property; and all factors that, according to professionally acceptable appraisal practices, affect the value of the property to be assessed.

70.32(1g) (1g) In addition to the factors set out in sub. (1), the assessor shall consider the effect on the value of the property of any zoning ordinance under s. 59.692, 61.351, 61.353, 62.231, or 62.233, any conservation easement under s. 700.40, any conservation restriction under an agreement with the federal government and any restrictions under ch. 91. Beginning with the property tax assessments as of January 1, 2000, the assessor may not consider the effect on the value of the property of any federal income tax credit that is extended to the property owner under section 42 of the Internal Revenue Code.

70.32(1m) (1m) In addition to the factors set out in sub. (1), the assessor shall consider the impairment of the value of the property because of the presence of a solid or hazardous waste disposal facility or because of environmental pollution, as defined in s. 299.01 (4).

70.32(2) (2) The assessor, having fixed a value, shall enter the same opposite the proper tract or lot in the assessment roll, following the instruction prescribed therein.

70.32(2)(a) (a) The assessor shall segregate into the following classes on the basis of use and set down separately in proper columns the values of the land, exclusive of improvements, and, except for subds. 5., 5m., and 6., the improvements in each class:

70.32(2)(a)1. 1. Residential.

70.32(2)(a)2. 2. Commercial.

70.32(2)(a)3. 3. Manufacturing.

70.32(2)(a)4. 4. Agricultural.

70.32(2)(a)5. 5. Undeveloped.

70.32(2)(a)5m. 5m. Agricultural forest.

70.32(2)(a)6. 6. Productive forest land.

70.32(2)(a)7. 7. Other.

70.32(2)(c) (c) In this section:

70.32(2)(c)1d. 1d. “Agricultural forest land” means land that is producing or is capable of producing commercial forest products, if the land satisfies any of the following conditions:

70.32(2)(c)1d.a. a. It is contiguous to a parcel that has been classified in whole as agricultural land under this subsection, if the contiguous parcel is owned by the same person that owns the land that is producing or is capable of producing commercial forest products. In this subdivision, “contiguous” includes separated only by a road.

70.32(2)(c)1d.b. b. It is located on a parcel that contains land that is classified as agricultural land in the property tax assessment on January 1, 2004, and on January 1 of the year of assessment.

70.32(2)(c)1d.c. c. It is located on a parcel at least 50 percent of which, by acreage, was converted to land that is classified as agricultural land in the property tax assessment on January 1, 2005, or thereafter.

70.32(2)(c)1g. 1g. “Agricultural land” means land, exclusive of buildings and improvements and the land necessary for their location and convenience, that is devoted primarily to agricultural use.

70.32(2)(c)1i. 1i. “Agricultural use” means agricultural use as defined by the department of revenue by rule and includes the growing of short rotation woody crops, including poplars and willows, using agronomic practices.

70.32(2)(c)1k. 1k. “Agronomic practices” means agricultural practices generally associated with field crop production, including soil management, cultivation, and row cropping.

70.32(2)(c)1m. 1m. “Other,” as it relates to par. (a) 7., means buildings and improvements; including any residence for the farm operator’s spouse, children, parents, or grandparents; and the land necessary for the location and convenience of those buildings and improvements.

70.32(2)(c)2. 2. “Productive forest land” means land that is producing or is capable of producing commercial forest products and is not otherwise classified under this subsection.

70.32(2)(c)3. 3. “Residential” includes any parcel or part of a parcel of untilled land that is not suitable for the production of row crops, on which a dwelling or other form of human abode is located and which is not otherwise classified under this subsection.

70.32(2)(c)4. 4. “Undeveloped land” means bog, marsh, lowland brush, uncultivated land zoned as shoreland under s. 59.692 and shown as a wetland on a final map under s. 23.32 or other nonproductive lands not otherwise classified under this subsection.

70.32(2r) (2r) Agricultural land shall be assessed according to the income that could be generated from its rental for agricultural use.

70.32(3) (3) Manufacturing property subject to assessment under s. 70.995 shall be assessed according to that section.

70.32(4) (4) Beginning with the assessments as of January 1, 2004, agricultural forest land shall be assessed at 50 percent of its full value, as determined under sub. (1), and undeveloped land shall be assessed at 50 percent of its full value, as determined under sub. (1).

70.32(5) (5) Beginning with the assessments as of January 1, 2017, the assessor shall assess the land within a district corridor described under s. 88.74 in the same class under sub. (2) (a) as the land adjoining the corridor, if the adjoining land and the land within the corridor are owned by the same person.

70.32 History History: 1973 c. 90; 1977 c. 29, 418; 1979 c. 34; 1981 c. 20, 390; 1983 a. 36; 1983 a. 275 s. 15 (8); 1983 a. 410; 1985 a. 54, 153; 1991 a. 39, 316; 1993 a. 337; 1995 a. 27, 201, 227; 1999 a. 9; 2001 a. 109; 2003 a. 33, 230; 2009 a. 177, 235, 276, 401; 2013 a. 80; 2017 a. 115.

70.32 Cross-reference Cross-reference: See also ch. Tax 18, Wis. adm. code.

70.32 Annotation When market value is established by a fair sale of the property or sales of reasonably comparable property are available, it is error for an assessor to resort to other factors to determine fair market value, although such factors in the absence of such sales would have a bearing on market value. Rules on judicial review of valuation presuppose that the method of evaluation is in accordance with the statutes; hence errors of law should be corrected by the court on certiorari and the failure to make an assessment on the statutory basis is an error of law. State ex rel. Markarian v. City of Cudahy, 45 Wis. 2d 683, 173 N.W.2d 627 (1970).

70.32 Annotation While a sale establishes value, the assessment still has to be equal to that on comparable property. Sub. (2) requires the assessor to fix a value before classifying the land; it does not prohibit the assessor from considering the zoning of the property when it is used for some other purpose. State ex rel. Hensel v. Town of Wilson, 55 Wis. 2d 101, 197 N.W.2d 794 (1972).

70.32 Annotation In making an assessment based on a recent sale of the property, the assessor cannot increase the value because no commission was paid to a broker. State ex rel. Lincoln Fireproof Warehouse Co. v. Board of Review, 60 Wis. 2d 84, 208 N.W.2d 380 (1973).

70.32 Annotation Under an option agreement, the sellers’ right to repurchase their homestead and their right of first refusal for the purchase of industrial buildings to be constructed on the property were factors going only to the willingness of the parties to deal, not their compulsion to do so; the value of these rights, together with the monetary amount per acre, comprised the total sale price of the land. State ex rel. Geipel v. City of Milwaukee, 68 Wis. 2d 726, 229 N.W.2d 585 (1975).

70.32 Annotation Evidence of net income from unique property was admissible to show market value. An assessor’s unconfirmed valuation based on estimated replacement cost less depreciation could not stand alone because of uncontroverted evidence of actual costs of recent construction. Rosen v. City of Milwaukee, 72 Wis. 2d 653, 242 N.W.2d 681 (1976).

70.32 Annotation When there are no actual sales, cost, depreciation, replacement value, income, industrial conditions, location and occupancy, sales of like property, book value, insurance carried, value asserted in a prospectus, and appraisals are all relevant to determination of market value for assessment purposes. State ex rel. Mitchell Aero, Inc. v. Board of Review, 74 Wis. 2d 268, 246 N.W.2d 521 (1976).

70.32 Annotation District-wide use of comparative sales statistics to determine annual percentage increases of assessments was invalid under sub. (1). State ex rel. Kaskin v. Board of Review, 91 Wis. 2d 272, 282 N.W.2d 620 (Ct. App. 1979). See also Lloyd v. Board of Review, 179 Wis. 2d 33, 505 N.W.2d 465 (Ct. App. 1993).

70.32 Annotation An assessor erred in failing to consider disadvantages and liabilities that affect the fair market value of dams. State ex rel. Wisconsin Edison Corp. v. Robertson, 99 Wis. 2d 561, 299 N.W.2d 626 (Ct. App. 1980).

70.32 Annotation The lease of comparable property constituted the “best information” regarding fair market value of leasehold improvements. State ex rel. Keane v. Board of Review, 99 Wis. 2d 584, 299 N.W.2d 638 (Ct. App. 1980).

70.32 Annotation Sub. (1) requires the use of a cash equivalency adjustment in assessing property based upon the sale of comparable properties. State ex rel. Flint Building Co. v. Kenosha County Board of Review, 126 Wis. 2d 152, 376 N.W.2d 364 (Ct. App. 1985).

70.32 Annotation An assessment largely based upon consideration of equalized value was invalid. The court erred by remanding with the requirement that a new assessment consider the actual subsequent sale of the subject property. State ex rel. Kesselman v. Board of Review, 133 Wis. 2d 122, 394 N.W.2d 745 (Ct. App. 1986).

70.32 Annotation The board of review erred as a matter of law by basing an assessment on “market” rental income when there was a recent arms-length sale of the property. Darcel, Inc. v. City of Manitowoc Board of Review, 137 Wis. 2d 623, 405 N.W.2d 344 (1987).

70.32 Annotation In determining market value under sub. (1), the board of review must determine whether financing arrangements between the seller and buyer affected the sale price; sub. (1) prohibits assessment exceeding market value. Flood v. Village of Lomira, 153 Wis. 2d 428, 451 N.W.2d 422 (1990).

70.32 Annotation A tax assessment under sub. (1) may include as a component of value the property’s transferable income-producing capacity that is reflected by a recent sale. The key of the analysis is whether the value is appended to the property and is thus transferable with the property or whether it is, in effect, independent of the property so that the value either stays with the seller or dissipates upon sale. In this case, a shopping mall’s reason for existence—namely, the leasing of space to tenants and related activities such as trash disposal, baby stroller rentals, etc.—was a transferable value that was inextricably intertwined with the land, just as the transferable value of a farm—the growing of crops—is inextricably intertwined with the property from which the farm operates. State ex rel. N/S Associates v. Board of Review, 164 Wis. 2d 31, 473 N.W.2d 554 (Ct. App. 1991).

70.32 Annotation This section establishes a unitary taxing scheme; mineral rights are taxed as an element of the real estate and not separately. Cornell University v. Rusk County, 166 Wis. 2d 811, 481 N.W.2d 485 (Ct. App. 1992).

70.32 Annotation The capitalization of income method, based on estimated market rents rather than on actual rent, was an improper method of assessing subsidized rental property. Metropolitan Holding Co. v. Board of Review, 173 Wis. 2d 626, 495 N.W.2d 314 (1993).

70.32 Annotation Compliance with the s. 73.03 (2a) assessment manual is not a defense when the method of assessment violates sub. (1). Metropolitan Holding Co. v. Board of Review, 173 Wis. 2d 626, 495 N.W.2d 314 (1993).

70.32 Annotation When an assessor disavows the correctness of a valuation of comparable property shown on the tax roll, the burden is on the assessor to explain why the assessment is incorrect. State ex rel. Brighton Square Co. v. City of Madison, 178 Wis. 2d 577, 504 N.W.2d 436 (Ct. App. 1993).

70.32 Annotation A taxpayer challenging an assessment has the burden of proving that a sale was an arm’s-length transaction. The taxpayer has the burden of proof on each assessment manual condition that must be met. Doneff v. City of Two Rivers Board of Review, 184 Wis. 2d 203, 516 N.W.2d 383 (1994).

70.32 Annotation The use of owner-operator income to value property is allowed if the net income reflects the property’s chief source of value, the income is produced without skill of the owner, or the owner’s skill and labor are factored out and other valuation approaches are considered. Waste Management of Wisconsin, Inc. v. Kenosha County Board of Review, 184 Wis. 2d 541, 516 N.W.2d 695 (1994).

70.32 Annotation There is no bright line rule for the number of comparable properties that must be shown to prove that the rule of uniformity is being violated. Assessments that are discriminatory and made based on arbitrary and improper considerations cannot stand. State ex rel. Levine v. Board of Review, 191 Wis. 2d 363, 528 N.W.2d 424 (1995).

70.32 Annotation Property that is encumbered by a bundle of rights must be appraised at its value using the current value of that bundle of rights. City of West Bend v. Continental IV Fund Ltd. Partnership, 193 Wis. 2d 481, 535 N.W.2d 24 (Ct. App. 1995).

70.32 Annotation Real property shall be valued based on the best information available. The best information is a recent arms-length sale of the property, followed by recent sales of comparable property. If either of those are not available, the assessor may look to all factors that collectively have a bearing on the value of the property. State ex rel. Campbell v. Township of Delavan, 210 Wis. 2d 239, 565 N.W.2d 209 (Ct. App. 1997), 96-1291.

70.32 Annotation Equalized value is not a measure of fair market value of individual properties; it is improper for an assessor to take it into account in valuing property. Noah’s Ark Family Park v. Board of Review, 210 Wis. 2d 301, 565 N.W.2d 230 (Ct. App. 1997), 96-1074.

70.32 Annotation Affirmed. 216 Wis. 2d 387, 573 N.W.2d 852 (1998), 96-1074.

70.32 Annotation For purposes of the uniformity clause, there is only one class of property. The burden of taxation must be borne as nearly as practicable among all property, based on value. Compliance with the requirement of s. 70.05 (5) that property be assessed at fair value at least once every five years is not a substitute for compliance with the uniformity clause and sub. (1). Approving an increased assessment for only one property despite evidence that it and other properties had recent sales at a price above prior assessments violated the law, and its approval by the board of review was arbitrary. Noah’s Ark Family Park v. Board of Review, 210 Wis. 2d 301, 565 N.W.2d 230 (Ct. App. 1997), 96-1074.

70.32 Annotation Affirmed. 216 Wis. 2d 387, 573 N.W.2d 852 (1998), 96-1074.

70.32 Annotation It was improper to rely solely on insurance replacement value to set the valuation of low income apartments encumbered with income and rental restrictions, although it was a relevant factor. Walworth Affordable Housing, LLC v. Village of Walworth, 229 Wis. 2d 797, 601 N.W.2d 325 (Ct. App. 1999), 98-2535.

70.32 Annotation Income that is attributable to land, rather than personal to the owner, is inextricably intertwined with the land and is transferable to future owners. This income may be included in the land’s assessment because it appertains to the land. Income from managing separate off-site property may be inextricably intertwined with land and subject to assessment if the income is generated primarily on the assessed property itself. ABKA Ltd. Partnership v. Board of Review, 231 Wis. 2d 328, 603 N.W.2d 217 (1999), 98-0851.

70.32 Annotation The requirement to use the “best information” does not require that an assessor use actual figures in the absence of a sale. An assessor acted properly in using estimated expense figures when actual figures did not reflect regular expenses. ABKA Ltd. Partnership v. Board of Review, 231 Wis. 2d 328, 603 N.W.2d 217 (1999), 98-0851.

70.32 Annotation It is clear from the Property Assessment Manual that assessors should consider many market factors from a variety of sources when gathering and applying comparable sales information. Even sales prices of similar properties need some adjustment in order to arrive at an estimate of value for a different property. Joyce v. Town of Tainter, 2000 WI App 15, 232 Wis. 2d 349, 606 N.W.2d 284, 99-0324.

70.32 Annotation When valuing subsidized housing, assessors are required to consider the effects the property’s restrictions have on value. Bloomer Housing Ltd. Partnership v. City of Bloomer, 2002 WI App 252, 257 Wis. 2d 883, 653 N.W.2d 309, 01-3495. See also Northland Whitehall Apartments Ltd. Partnership v. City of Whitehall, 2006 WI App 60, 290 Wis. 2d 488, 713 N.W.2d 646, 04-2941.

70.32 Annotation An assessor cannot be free to choose between the mortgage subsidy rate and the mortgage market rate when using the income approach to valuing federally subsidized housing. If the use of a market rate was proper in City of Bloomer, 2002 WI App 252, the use of a subsidized interest rate cannot be. Mineral Point Valley Ltd. Partnership v. City of Mineral Point Board of Review, 2004 WI App 158, 275 Wis. 2d 784, 686 N.W.2d 697, 03-1857.