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Building a house in Illinois

How many new single-family homes each of Illinois's counties permitted in 2025, what builders declared they would cost, and who is listed here to build one.

10,821 new homes permitted in 2025

US Census Bureau, Building Permits Survey

A lot ZIP anywhere in the US gives its county and these figures on the home page map.

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Map of Illinois counties, shaded by new single-family homes permitted in 2025
New single-family homes permitted in 2025, per countyUnder 5050 to 199200 to 499500 to 1,9992,000 or moreNo dataUS Census Bureau, Building Permits Survey, 2025.

Every county in Illinois

New single-family homes permitted in 2025 and the average value builders declared per home. Permit values usually run below the full cost to build, and an average from fewer than 10 permits is left out. Sort by any column.

CountyNew homesAverage permit value
Will County1,797$306,000
Kane County1,389$379,000
Cook County1,191$495,000
McHenry County919$246,000
DuPage County844$562,000
Lake County570$457,000
Kendall County567$249,000
Madison County323$335,000
Winnebago County309$282,000
St. Clair County285$369,000
Champaign County267$334,000
DeKalb County226$265,000
McLean County205$296,000
Sangamon County180$389,000
Kankakee County92$292,000
Tazewell County84$427,000
Ogle County81$294,000
Peoria County73$419,000
Rock Island County73$322,000
Macoupin County70$240,000
Williamson County68$220,000
Lawrence County67$173,000
Monroe County63$518,000
Christian County60$349,000
Grundy County56$422,000
LaSalle County56$396,000
Boone County54$251,000
Clinton County49$372,000
Shelby County46$317,000
Jo Daviess County40$443,000
Jersey County39$270,000
Macon County32$420,000
Piatt County31$449,000
Effingham County30$492,000
Woodford County30$447,000
Douglas County28$255,000
Adams County26$265,000
Bond County25$304,000
Lee County24$325,000
Perry County23$216,000
Whiteside County23$372,000
Livingston County20$372,000
Moultrie County19$461,000
Carroll County18$251,000
Henry County18$423,000
Mercer County18$267,000
Bureau County16$329,000
Coles County16$260,000
Franklin County15$236,000
Washington County15$342,000
Ford County14$237,000
Fulton County14$377,000
Iroquois County14$339,000
Stephenson County14$355,000
De Witt County13$312,000
Jefferson County12$112,000
Menard County11$396,000
Montgomery County11$235,000
Pike County11$219,000
Union County10$217,000
Vermilion County10$222,000
Crawford County9None
Richland County8None
Brown County7None
Logan County7None
Randolph County7None
Mason County6None
Massac County6None
Putnam County6None
Calhoun County5None
Clark County5None
Morgan County5None
Wabash County5None
Henderson County4None
Jackson County4None
Marion County4None
Warren County4None
Edgar County3None
Fayette County3None
Marshall County3None
Pulaski County3None
Clay County2None
Greene County2None
Jasper County2None
Hancock County1None
Knox County1None
McDonough County1None
Pope County1None
Stark County1None
Wayne County1None
White County1None
Alexander County0None
Cass County0None
Cumberland County0None
Hardin County0None
Johnson County0None
Saline County0None
Schuyler County0None
Edwards CountyNo dataNone
Gallatin CountyNo dataNone
Hamilton CountyNo dataNone
Scott CountyNo dataNone

US Census Bureau, Building Permits Survey, 2025. Permit values are what builders declare and usually run below the full cost to build.

Builders and pros listed in Illinois

Nobody is listed in Illinois yet. Builders and pros list free anywhere in the US, and a buyer is matched to each one whose service area covers the lot.

Matching goes by distance, not state lines: a pro in a neighboring state whose service area covers your lot is on your list too. How builders are listed · List free

Plans to build here

Every plan is licensed for a build anywhere in the country. Each plan page shows the lot it fits and, for a ZIP, the county figures.

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