Room to enjoy the outdoors
Three stocked lakes, mature trees, gentle trails and generous common ground bring nature into everyday neighborhood life.
Explore outdoor amenities →Tree-lined boulevards, beautiful lakes, exceptional amenities and eleven distinct villages come together in one of O’Fallon’s most established communities.
Set just off Highway K in O’Fallon, Twin Chimneys brings together 813 single-family homes across eleven distinctive villages. It is a neighborhood with room to breathe, places to gather and a strong sense of community.
Thirty-six acres of common ground, three lakes, miles of tree-lined boulevards, walking and biking routes, courts, pools and the Family Center create an everyday quality of life that is difficult to match.
See everything the community offers →
There is something special about a community where mornings can begin on a tree-lined trail, summer afternoons belong at the pool, and neighbors have welcoming places to gather throughout the year.
Three stocked lakes, mature trees, gentle trails and generous common ground bring nature into everyday neighborhood life.
Explore outdoor amenities →The Family Center, pools, playground and courts make it easy for residents of all ages to spend time together.
Eleven villages and a story reaching back to the historic Walnut Grove estate give Twin Chimneys a distinct sense of place.

The land was once part of Judge Barton Bates’s Walnut Grove estate. Around 1835 he built a 22-room mansion called “Cheneaux,” or “Little Oaks.” Set on the area’s highest point, its two tall stone chimneys rose above the trees as a landmark—the inspiration for today’s community name.
Nearby Old Rock Church was built in 1868 from limestone quarried along Dardenne Creek on land donated by Judge and Mrs. Bates.
Family Center staff can answer questions about access, reservations and current hours at (636) 978-5540.

A 6,300+ sq. ft. replica of the historic Bates mansion with a full kitchen, wet bar, fireplace, gathering spaces, HD televisions, Sonos audio, free resident and guest internet donated by Gateway Fiber, and the property management office.

Treadmills, ellipticals, multi-use machines, dumbbells and medicine balls, with resident-card access after hours.

Approximately 900 sq. ft.; reserved for residents and accompanied guests age 21 and older.

More than 4,000 sq. ft. of swimming area with shaded seating, concessions, and home meets for the Tidal Waves.

A shallow zero-entry pool with suspended tipping buckets for the community’s youngest residents.

More than a mile of walking trail plus lighted tennis and multi-game courts for tennis, volleyball, badminton and basketball.

Rope ladder, swings and slide; open dawn to dusk.

The community’s largest lake at more than four acres, stocked with fish and served by a dock.

A stocked lake of more than two acres and the preferred site for the annual fishing derby.

A secluded, stocked lake of more than three acres with a popular fishing dock.
Pool-deck concessions offer snacks, candy, snow cones and drinks. The lower level includes saunas, and a dedicated bike route connects with O’Fallon trails along Highway N.
Family Center summer: Tuesday–Sunday, generally 11 a.m.–8 p.m.; closed Monday.
Family Center winter: Monday–Friday, 4–8 p.m.
Pool deck: Tuesday–Thursday and Sunday, 11 a.m.–7 p.m.; Friday–Saturday and holidays, 11 a.m.–9 p.m.; closed Monday.
Seasonal dates and hours can change. Confirm before visiting.
Residents age 18 and older may bring two guests; residents under 18 may bring one. The resident must remain present.
No. Pools cannot be reserved. Event guests may use them only under the current guest policy.
Residents in good standing may reserve it first-come, first-served for a nominal fee. Call (636) 978-5540 for rates and availability.
No. Residents retain access to lower-level amenities.
The photo ID confirms residency and permits access to pools and after-hours amenities.
The Indenture of Trust and Restrictions establishes governance, assessments, architectural controls, property-use standards and maintenance requirements. It is legally enforceable; this summary is not a substitute for the full document.
Each village elects a trustee. Verify the current roster and contact details before publication.
Upcoming events are supplied by the City of O’Fallon’s official calendar and refreshed automatically every 12 hours.
Gateway Fiber provides internet to the Family Center. Trash and recycling are provided by the City of O’Fallon.

Family Center & Association Office
7145 Twin Chimneys Boulevard
O’Fallon, MO 63368
Property management: DNI Properties, 662 Office Parkway, Creve Coeur, MO 63141 · (314) 576-0700 · Fax (314) 576-0718