Rychtrův dům, Cultural monument in Malé náměstí, Czech Republic

Rychtrův dům is a residential building on the Old Town Square that combines multiple architectural styles within a single structure. Its facade displays Gothic elements from the medieval period alongside Renaissance and Baroque details, completed with Neoclassical ornaments.

The structure formed through the combination of multiple buildings that were altered and rebuilt between the 14th and 18th centuries. A Neoclassical entrance portal was added toward the end of the 18th century.

The house carries several names: Richtrův or Rychtrův dům, Martinický dům, and U Modrého jelena (At the Blue Stag). The Martinický name recalls Countess Marie Josefa Martinicová, who had the separate houses joined and rebuilt between 1714 and 1726. From 1882 the first telephone exchange in Prague operated here, serving 10 to 13 subscribers at first and 98 within months.

The building sits directly on the Old Town Square and is easily reached on foot. The area has good public transport connections and many places nearby to eat and rest.

From 1882 the building housed the first telephone exchange in Prague, run by the Pražské podnikatelství pro telefony. It began with only 10 to 13 subscribers, reached 98 within months, and closed in 1902 when operations moved to the main post office on Jindřišská Street.