Anderson Township residents can tour one of Southwest Ohio's oldest stone buildings and weigh in on the township's future at a free pop-up Sunday, Sept. 20.

The neighborhood pop-up starts at 1 p.m. at the Clark Stone House, 6840 Clough Pike. Township staff plan to collect feedback on the Comprehensive Plan Update, the document that guides decisions on housing, transportation and economic development for the next 10 to 20 years.

The event is also part of Ohio Open Doors, a statewide celebration tied to America's 250th anniversary. The program, organized by the Ohio History Connection, features more than 250 free events across Ohio from Thursday, Sept. 10 through Sunday, Sept. 20.

A house from Ohio's earliest years

The Clark Stone House is a two-story dressed limestone structure built around 1803, the same year Ohio became a state. The Ohio History Connection lists it as one of Southwest Ohio's oldest stone structures. The house was sold to the Leuser family in 1864, acquired by the related Messmer family in 1923 and later purchased by Anderson Township.

Fifth plan update since 2005

The 2026 update is the fifth revision to the township's comprehensive plan since the original was adopted in 2005. The township launched an online survey in July asking residents about housing, neighborhoods, transportation and economic development. That survey remains open at AndersonTownshipOHCompPlan.com.

Trustee Vice Chair Katie Nappi said in the township's April newsletter that the planning process "is perhaps the most direct way to translate the desires of our residents into future decision-making that shapes the township."

At an April 1 Board of Trustees meeting, consultants Abbie Emison and Jonathan Miller from McKenna outlined the engagement strategy: a community survey, visioning sessions, focus groups, neighborhood pop-ups and community open houses.

The township said the Sept. 20 event comes as it wraps up public engagement on the plan update. At least one more opportunity remains: a community open house at 6:30 p.m. Wednesday, Oct. 14, at Anderson Center, 7850 Five Mile Road.

The trustees unanimously endorsed the AMERICA250-OH initiative on Feb. 19, adopting a resolution supporting its mission to celebrate Ohio's role in the nation's 250th anniversary.

The Sept. 20 pop-up is free and open to the public. No registration is required.