The Rincon Band of Luiseño Indians said in mid-July that it broke ground on a $20 million, 43,000-square-foot tribal government administration building, which will replace the temporary buildings it has used for the last 17 years.

The building will house tribal government offices as well as the reservation’s law enforcement office.

The general contractor is the Hearne Co., a division of W.E. O’Neil. Joe Martinez of Sierra Building Solutions is construction manager. Architecture is by the Worth Group. The tribe expects to complete the building by summer 2018.

The building will be on Valley Center Road, north of the tribal fire department, on the band’s 5,000-acre reservation northeast of Escondido.

The Rincon band’s main business is the casino and resort on its reservation, operated under contract by Harrah’s. It has two hotel towers with 1,065 rooms, 1,700 slot machines and 60 table games, a 400-foot “lazy river” pool and what it claims to be Southern California’s only swim-up bar.

The Rincon band has 535 members. Bo Mazzetti is tribal chairman.

The tribe said it plans to install $5 million of road improvements along with the government building.