The oldest houses are one-story
adobe structures. The district expands south from the State Capitol, and is a segment of the Santa Fe South Capitol area. To the north it is bounded by Paseo de Peralta, and to the east, it is bounded by the
Old Santa Fe Trail. The southern boundary is Houghton Street marks the southern boundary, and Don Cubero marks the western boundary. The historic district includes a mixture of architectural styles such as
Pueblo Revival,
California Bungalow, and late-period Victorian homes. Some of the structures are partially constructed from structural tiles manufactured by the inmates of the
New Mexico Penitentiary, known locally as "pen tile". The penitentiary was formerly located in the southwestern quadrant of the district. The area is transected by Don Gaspar Avenue and Galisteo Street, both of which run in a north–south direction. ==See also==