The first historical documents, however, date back to 1047, when Emperor Henry III the Black cites the canonical Chapter of the Cathedral of San Giovanni di Torino with the rights to the property owned, including the curtis Grugliascum, with the already existing church dedicated to San Cassiano di Imola, and the tenth paid to the Chapter by the inhabitants of the villa.
This had developed over time, around the nucleus of property of the Turin canons, which corresponds to the current historic centre, next to the ancient church dedicated to San Cassiano.
At the beginning of the thirteenth century, the village called Grugliascum was included in the possessions of the Savoia-Acaia, until 1619, when the Duke of Savoy Carlo Emanuele Io erected as a county, infeudating it to the City of Turin.
The creation, in the fifteenth century, of a bealera still existing, and mostly buried and which is still used for the irrigation of the fields in Strada del Gerbido, determined a faster economic development of the village.
However, in the nineteenth century the seer economy suffered a serious crisis, due to mulberry disease and the predominance assumed by France in this particular textile sector.
Recently (XXI century), only a few remain active, while both the freight exchange centre called "SITO Interporto di Torino" and the new Turin fruit and vegetable markets C.A.A.T.
Chapel of the Brotherhood of Santa Croce: placed behind the church of S. Cassiano, in via Giustetti, dates back to the last thirty years of the sixteenth century, but was heavily remodelled in Baroque style between 1767 and 1780.
The house and the rustics, recently restored to their splendour, are now part of a residential complex, while the green area behind has become the main urban park of Grugliasco (Parco Porporati).
Villa Il Palazzo: located in the village of Gerbido, precisely in via Moncalieri 6, was built in the middle of the eighteenth century at the behest of Count Carlo di S. Martino, Marquis d'Agliè.
Villa Il Maggiordomo: also in Borgata Gerbido, ideally accessible from via Bertone, takes its name from the office of butler of Casa Savoia di Valeriano Napione, who had it built between 1675 and 1683.
For the strong similarity of the building with Palazzo Carignano in Turin, some scholars attribute the architectural project to the famous Guarino Guarini.
Villa Audifredi di Mortigliengo: in the "San Marcellino Champagnat" park of via Cotta there is what was born as a holiday residence in the seventeenth century, and then became, with the count from whom it takes its name and with the banker Giovanni Battista Barbaroux, an nineteenth-century setificio.
RiMu: underground air-raid shelter of the Second World War, with an original capacity of 75 people, and an annexed Grugliaschesità Museum, in Villa Boriglione, in the Le Serre Cultural Park.
Although St. Rocco is celebrated on August 16, since 2000 the ecclesiastical authority has allowed the Grugliaschesi to move the patronal feast to January 31, in memory of the first procession made to implore, through the intercession of the saint, the end of the pestilence.
The racing carts support a crane (symbol of the city), and travel a track in the historic centre; the Palio ends at a collective fair, on the weekend.
In 2007, according to the intervention plan "Corso Marche" by the architects Augusto Cagnardi and Vittorio Gregotti[16], the northern area of Grugliasco becomes a superficial part of a series of multi-level tunnels: on the second basement level, the trains of the planned goods eaves of the high-speed railway (TAV) will pass, while on the surface course, roofed by these two tunnels, will be remodelled with standards common to the rest of the future course.