River Forest's subdivision inventory is dominated by condo buildings and courtyard-style properties rather than sprawling subdivisions, reflecting the village's dense, walkable footprint along Lake Street, Harlem Avenue, and the historic districts near the Des Plaines River. Among the 39 communities tracked here, buildings like 424 Park, Valencia, and River Forest Garden see the most consistent turnover, while Chatterton stands out as the largest by sales volume, giving buyers a useful benchmark for pricing and demand in this market. This is an established, resale-driven market — there's no new construction or age-restricted 55+ community here, just a mix of vintage courtyard condos, brownstone-style buildings, and small townhouse enclaves such as The Promenade of River Forest and Dominican Manor, many built decades ago and rarely turning over. Smaller buildings like 1010 N. Harlem, Landers House, and Centennial House round out a market defined by boutique-scale living rather than large-scale developments. Overall, these subdivisions attract buyers drawn to River Forest's proximity to Oak Park and Chicago, its top-rated schools, and its historic character, with inventory serving primarily move-up and downsizing condo buyers in the mid-range price segment.