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States
Illinois
Will County

County housing permits · Illinois

Will County, IL building permits: new housing

1,698 new housing units permitted in the 12 months to September 2026, -23% on the year before, with $567M of construction value.

1,698
Housing units, last 12 months-23% vs. prior 12: $567M
Construction value: 0%
In 5+ unit buildings0 units: #3
Rankof 98

New housing units permitted per month

Places in Will County

Plainfield village522
Joliet292
New Lenox village205
Lockport204
Bolingbrook village112
Homer Glen village64
Frankfort village60
Will County Unincorporated Area52

Also see

Illinois18,623

In 5+ unit buildings All new housing units

Show as table

October 2024	254 units	72 in 5+ unit buildings
November 2024	211 units	90 in 5+ unit buildings
December 2024	99 units	0 in 5+ unit buildings
January 2025	87 units	0 in 5+ unit buildings
February 2025	116 units	0 in 5+ unit buildings
March 2025	147 units	0 in 5+ unit buildings
April 2025	181 units	0 in 5+ unit buildings
May 2025	160 units	0 in 5+ unit buildings
June 2025	335 units	116 in 5+ unit buildings
July 2025	242 units	48 in 5+ unit buildings
August 2025	169 units	0 in 5+ unit buildings
September 2025	195 units	16 in 5+ unit buildings
October 2025	139 units	0 in 5+ unit buildings
November 2025	83 units	0 in 5+ unit buildings
December 2025	128 units	0 in 5+ unit buildings
January 2026	107 units	0 in 5+ unit buildings
February 2026	163 units	0 in 5+ unit buildings
March 2026	155 units	0 in 5+ unit buildings
April 2026	167 units	0 in 5+ unit buildings
May 2026	162 units	0 in 5+ unit buildings
June 2026	161 units	0 in 5+ unit buildings
July 2026	146 units	0 in 5+ unit buildings
August 2026	202 units	0 in 5+ unit buildings
September 2026	85 units	0 in 5+ unit buildings

By building size

Last 12 months. Value is the construction cost reported on the permits.

Building size	Buildings	Units	Value
Single-family	1,694	1,694	$566M
2 units	0	0	—
3–4 units	1	4	$773K
5+ units	0	0	—

By year

Year	Housing units	In 5+ unit buildings	Value
2025	1,993	180	$593M
2024	2,002	530	$562M
2023	1,338	29	$406M

Key facts

Will County, IL permitted 1,698 new privately owned housing units in the 12 months to September 2026, worth $567,232,088 in construction value.
That is -23% compared with the 12 months before (2,196 units).
1,694 were single-family homes and 0 were in apartment buildings with 5 or more units (0 buildings).
The average single-family home permitted was valued at $334,391.
In September 2026, the latest month published, 85 units were permitted.
It ranked #3 of 98 counties in Illinois by housing units permitted in the period.
In 2025, the full year, 1,993 units were permitted ($593M).

Source: U.S. Census Bureau, Building Permits Survey, data through September 2026. New privately owned housing units authorized by building permits, including the Bureau’s estimates for places that didn’t report; commercial buildings and renovations are not counted. How we use it

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