The Tabatabaei House is the largest and most lavish of Kashan's surviving merchant mansions, built in the 1880s for a prosperous carpet merchant family. It covers some 5,000 square metres across four interconnected courtyards, each with its own pool, garden, and carefully composed facade of carved plasterwork and coloured-glass windows.
The windtowers — tall rectangular shafts designed to catch the prevailing breeze and funnel cool air down into the living rooms below — are the house's signature feature and among the finest examples of Persian vernacular engineering. On a hot day the interior temperature is noticeably cooler than the street outside, a reminder that this architecture was not merely decorative.
The painted ceilings and muqarnas vaulting in the main reception rooms reward slow looking. The detail in the stucco work — flowers, birds, geometric patterns layered into one another — is extraordinary even by the standards of 19th-century Iranian craftsmanship. The house is managed as a museum and can be visited throughout the day.
Hours: Daily 8am–6pm (summer), 8am–5pm (winter)
Admission: Moderate entrance fee