It is the only trullo in town with a unique two-gable layout built to resolve a property dispute between two brothers.
The structure is estimated to be over 600 years old, predating the more widespread 18th-century trullo construction era.
The interior layout is effectively divided into two separate dwellings due to the historical architectural compromise.
The walls are built using the 'a secco' technique, which allows for structural stability without the use of binding mortar.
Trullo Siamese is the only trullo in Alberobello featuring a dual-gable roof structure, symbolizing a shared roof split between two brothers. It is located in the Aia Piccola district, which historically served as a residential neighborhood rather than a commercial zone. The building dates back to 1400, making it one of the oldest preserved examples of trullo architecture in the region. Unlike standard single-cone trulli, this structure features two distinct entrances leading to separate interior spaces. The walls are constructed from local limestone using traditional dry-stone methods without mortar. The interior features original stone alcoves and historical household items reflecting 15th-century agrarian life. It remains a privately owned property that functions as a small artisan shop and living museum.
From the street corner directly in front of the two distinct roof gables.
Visit the small shop inside to see the exposed stone masonry and historical living tools.
Walk the quiet streets of the Aia Piccola district immediately surrounding the trullo to avoid the heavy crowds of the main tourist center.
Ask the owners about the specific 'Siamese' legend associated with the roof's division.
Do not mistake this for the commercial souvenir shops in the Rione Monti area; keep expectations set for a small, historical residential space.
Respect that this is a private property; always ask before taking interior photos.