National Register of Historic Places in Contra Costa County
In 1835, Mexico granted 13,326 acres, El Rancho Laguna de los Palos Colorados, to Joaquin Moraga and his cousin Juan Bernal. Six years later, Joaquin built this house, which is the oldest surviving adobe house in Contra Costa County.
The house is not accessible to the public; however, it was photographed in 1922 for the Historical American Building Survey (HABS).
The house has been restored and remodeled twice since it was photographed for HABS, first in 1941 and again in 1964 when it was incorporated into a private home.

Some historic adobes buildings in California:
| Alvarado Adobe in San Pablo |
| Castro Adobe near Watsonville |
| Castro Adobe Site in El Cerrito |
| Don Fernando Pacheco Adobe in Concord |
| Don Salvio Pacheco Adobe in Concord |
| El Adobe de los Robles Near Lemoore |
| Martinez Adobe in Martinez |
| Moraga Adobe in Orinda |
| Nash Adobe in Sonoma |
| Peña Adobe near Vacaville |
| Petaluma Adobe near Petaluma |
| Reading Adobe Site near Cottonwood |
| Stone and Kelsey Adobe Site in Kelseyville |
| Swift Adobe Site near Orland |
| Vallejo Adobe in Sonoma |