# Planned developments in Mason County, IL

Boardwalk found 78 planned projects in Mason County, IL in public filings from the last 12 months, mostly infrastructure. The latest is on the Mason County Planning - Agri - Business Committee agenda for Sep 8, 2026.

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

## Mason County at a glance

| Measure | Value |
|---|---|
| Projects, last 12 months | 78 |
| New in the last 30 days | 0 |
| Most common type | Infrastructure |
| Latest filing | Sep 8, 2026, Mason County Planning - Agri - Business Committee |
| Sources we check | 2 |

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 Mason County

By type, last 12 months.

| Type | Projects | Share |
|---|---|---|
| Infrastructure | 54 | 69% |
| Development decisions | 12 | 15% |
| Residential | 7 | 9% |
| Public and institutional | 2 | 3% |
| Agricultural | 2 | 3% |
| Commercial | 1 | 1% |

## Recent projects in Mason County

| Project | Location | Developer | Type | Size | Stage | Latest meeting |
|---|---|---|---|---|---|---|
| Commercial Solar Energy Facility | Mason County, IL | Blue Heron Solar Power, LLC | Power plants | Not stated in filing | Seeking approval | Sep 8, 2026 |
| Battery Storage System | Mason County, IL | RWE Americas Development, LLC | Battery storage | Not stated in filing | Seeking approval | Sep 8, 2026 |
| Rockdale Solar Road Use Agreement | Mason County, IL | Birch Creek | Solar farms | Not stated in filing | Early planning | Jul 17, 2026 |
| Business Development District No. 1 Redevelopment Agreement | Havana, IL | Darkhorse Management Group, LLC | Commercial | Not stated in filing | Seeking approval | Jul 7, 2026 |
| Battery Storage Project | Mason County, IL | RWE | Battery storage | Not stated in filing | Early planning | Jun 9, 2026 |
| Street Project Bid Review and Approval | Manito, IL | Not stated | Roads and highways | Not stated in filing | Out to bid | Jun 1, 2026 |
| Mason City Township Structure Engineering Services Agreement | Mason County, IL | Not stated | Transportation | Not stated in filing | In design | Apr 24, 2026 |
| Wind Energy Conversion System | Mason County, IL | Topeka Wind 2, LLC | Utilities | Not stated in filing | Seeking approval | Apr 14, 2026 |
| Eskar Sands Wind Project Road Use Agreement | Mason County, IL | Cordelio Power | Utilities | Not stated in filing | Early planning | Apr 10, 2026 |
| Wind Energy Conversion System | Mason County, IL | Topeka Wind 1, LLC | Utilities | Not stated in filing | Seeking approval | Apr 9, 2026 |
| Cape Seal Overlay Project from Forest City into Manito | Mason County, IL | Not stated | Transportation | Not stated in filing | Approved | Mar 27, 2026 |
| Salt Creek Road District Township Bridge TR 194 Replacement | Mason County, IL | Not stated | Bridges | Not stated in filing | Out to bid | Mar 27, 2026 |

Showing 12 of 78 projects. A free trial opens the full records and documents.

Samples show projects filed by companies or public bodies.

## Cities in Mason County

- Manito, IL · 27 projects
- Havana, IL · 5 projects
- Mason City, IL · 2 projects

## Nearby places

- [Menard County, IL](https://boardwalkai.com/development/illinois/menard/) · 35 projects
- Cass County, IL · 19 projects
- [Fulton County, IL](https://boardwalkai.com/development/illinois/fulton/) · 42 projects
- [Tazewell County, IL](https://boardwalkai.com/development/illinois/tazewell/) · 360+ projects
- [Logan County, IL](https://boardwalkai.com/development/illinois/logan/) · 96 projects
- [Peoria County, IL](https://boardwalkai.com/development/illinois/peoria/) · 460+ projects

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

## Questions about Mason County

### What's planned in Mason County, IL?

Boardwalk found 78 planned projects in Mason County, IL in the last 12 months, mostly infrastructure. The latest is on the Mason County Planning - Agri - Business Committee agenda for Sep 8, 2026.

### Where does this data come from?

Boardwalk's Mason County projects come from public meeting records, such as Mason County Planning - Agri - Business Committee agendas and minutes. Each one links to the original filing.

### How current is it?

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

### Can I get an Alert for new Mason County projects?

Yes, a Boardwalk Alert emails you new Mason 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.** [mason.json](https://boardwalkai.com/data/places/illinois/mason.json) · [mason.md](https://boardwalkai.com/development/illinois/mason/index.md)

## How to cite

Source: Boardwalk, "Planned developments in Mason County, IL", boardwalkai.com/development/illinois/mason/, data as of Oct 19, 2026.

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