# Planned developments in St. Clair County, IL

Boardwalk found 600+ planned projects in St. Clair County, IL in public filings from the last 12 months. The latest is on the Belleville Streets & Grades Committee agenda for Oct 19, 2026.

Data as of Oct 19, 2026. Updated monthly. Page: https://boardwalkai.com/development/illinois/st-clair/

## St. Clair County at a glance

| Measure | Value |
|---|---|
| Projects, last 12 months | 600+ |
| New in the last 30 days | 17 |
| Most common type | Infrastructure |
| Latest filing | Oct 19, 2026, Belleville Streets & Grades Committee |
| Sources we check | 9 |

Last 12 months, duplicates merged. Includes private, public, and small jobs. How we count: https://boardwalkai.com/coverage/#how-we-count

## What's planned in St. Clair County

By type, last 12 months.

| Type | Projects | Share |
|---|---|---|
| Infrastructure | 240+ | 41% |
| Development decisions | 120+ | 20% |
| Commercial | 84 | 14% |
| Residential | 81 | 13% |
| Public and institutional | 52 | 9% |
| Industrial | 13 | 2% |
| Mixed use | 3 | Under 1% |
| Agricultural | 2 | Under 1% |

## Recent projects in St. Clair County

| Project | Location | Developer | Type | Size | Stage | Latest meeting |
|---|---|---|---|---|---|---|
| $228K 12th to 17th West Main Street Streetscape Design | Belleville, IL | Kaskaskia Engineering Group | Roads and highways | Not stated in filing | In design | Oct 19, 2026 |
| $25K Downtown Parking Structure Preliminary Design | Belleville, IL | Not stated | Parking garages | Not stated in filing | In design | Oct 13, 2026 |
| Amusement and Business Office PUD Amendment | Belleville, IL | Bonfire Holdings | Entertainment and recreation | Not stated in filing | Approved | Oct 5, 2026 |
| Zoning Ordinance Amendment for Casey's Retail Company | Belleville, IL | Casey's Retail Company | Retail | Not stated in filing | Seeking approval | Oct 5, 2026 |
| Old Fire House Demolition and Asbestos Abatement | Marissa, IL | Not stated | Fire and police stations | Not stated in filing | Out to bid | Sep 8, 2026 |
| 232-Unit Apartment Community with Commercial Lots | Freeburg, IL | Hayden Development | Apartments | 232 apartments | Seeking approval | Aug 3, 2026 |
| 11.46-Acre Minor Subdivision for Take 5 Oil Change Center | Fairview Heights, IL | The Engenuity Engineer | Auto repair | 11.5 acres | Approved | Jun 17, 2026 |
| 10-Unit Mixed-Use Development on 0.42 Acres | Fayetteville, IL | J & L REI Holdings, LLC. | Residential | 10 units · 0.42 acres | Seeking approval | May 26, 2026 |
| 16-Unit Affordable Single-Family Housing Development Program | Fayetteville, IL | Not stated | Single-family | 16 units | Approved | May 26, 2026 |
| 10.91-Acre Salvage and Junkyard Development | Fayetteville, IL | Russell Street, LLC | Industrial | 10.9 acres | Continued | May 26, 2026 |
| 50-Acre Medical Arts Campus District Rezoning | Fayetteville, IL | Cumberland County Hospital System, Inc. | Hospitals | 50 acres | Approved | May 26, 2026 |
| 2,200-Acre Triple Oaks Solar Farm | Freeburg, IL | AES Solar | Solar farms | 2,200 acres | Early planning | May 12, 2026 |

Showing 12 of 600+ projects. A free trial opens the full records and documents.

Samples show projects filed by companies or public bodies.

## Cities in St. Clair County

- [Belleville, IL](https://boardwalkai.com/development/illinois/belleville/) · 140+ projects
- [Freeburg, IL](https://boardwalkai.com/development/illinois/freeburg/) · 51 projects
- [Caseyville, IL](https://boardwalkai.com/development/illinois/caseyville/) · 50 projects
- Smithton, IL · 49 projects
- Fairmont City, IL · 48 projects
- [Fairview Heights, IL](https://boardwalkai.com/development/illinois/fairview-heights/) · 41 projects
- Swansea, IL · 36 projects
- [Washington Park, IL](https://boardwalkai.com/development/illinois/washington-park/) · 24 projects
- [Marissa, IL](https://boardwalkai.com/development/illinois/marissa/) · 23 projects
- [Fayetteville, IL](https://boardwalkai.com/development/illinois/fayetteville/) · 20 projects
- Lebanon, IL · 17 projects
- Mascoutah, IL · 14 projects
- East St. Louis, IL · 8 projects
- Lenzburg, IL · 6 projects
- Cahokia Heights, IL · 4 projects
- Hecker, IL · 3 projects
- Millstadt, IL · Checked, no projects in 12 months
- New Athens, IL · Checked, no projects in 12 months
- O'Fallon, IL · Checked, no projects in 12 months
- Shiloh, IL · Checked, no projects in 12 months
- Summerfield, IL · Checked, no projects in 12 months

## Nearby places

- [Monroe County, IL](https://boardwalkai.com/development/illinois/monroe/) · 190+ projects
- [Clinton County, IL](https://boardwalkai.com/development/illinois/clinton/) · 200+ projects
- [Randolph County, IL](https://boardwalkai.com/development/illinois/randolph/) · 120+ projects
- [Washington County, IL](https://boardwalkai.com/development/illinois/washington/) · 48 projects
- [Madison County, IL](https://boardwalkai.com/development/illinois/madison/) · 820+ projects
- [Perry County, IL](https://boardwalkai.com/development/illinois/perry/) · 57 projects

All places in Illinois: [Illinois](https://boardwalkai.com/development/illinois/)

## Questions about St. Clair County

### What's planned in St. Clair County, IL?

Boardwalk found 600+ planned projects in St. Clair County, IL in the last 12 months. The latest is on the Belleville Streets & Grades Committee agenda for Oct 19, 2026.

### Where does this data come from?

Boardwalk's St. Clair County projects come from public meeting records, such as Belleville Streets & Grades Committee agendas and minutes. Each one links to the original filing.

### How current is it?

Boardwalk checks St. Clair County's public records at least once a week; the last check was Oct 20, 2026. These counts are as of Oct 19, 2026 and refresh monthly.

### Can I get an Alert for new St. Clair County projects?

Yes, a Boardwalk Alert emails you new St. Clair County projects daily, weekly, or monthly. Start with a 7-day free trial, no credit card needed.

## Get the full data

- **Count for free.** Connect Boardwalk to Claude or ChatGPT and ask how many projects match. Counting is free during your trial and on every plan. [Use it in Claude or ChatGPT](https://boardwalkai.com/mcp/)
- **Open the records.** Start a 7-day free trial, no credit card. It includes 50 project records. [Start free trial](https://boardwalkai.com/auth/signup/)
- **Use it in your tools.** CSV export, the API, and the MCP server come with every plan. [API docs](https://boardwalkai.com/docs/api/)
- **Download these numbers.** [st-clair.json](https://boardwalkai.com/data/places/illinois/st-clair.json) · [st-clair.md](https://boardwalkai.com/development/illinois/st-clair/index.md)

## How to cite

Source: Boardwalk, "Planned developments in St. Clair County, IL", boardwalkai.com/development/illinois/st-clair/, data as of Oct 19, 2026.

How we count: https://boardwalkai.com/coverage/#how-we-count