Building Image Location First built Use Notes Ruins of Mission La Purisima Lompoc 1802 Mission The original mission was destroyed during the 1812 Ventura earthquake . Only two 7 ft (2.1 m) -high wall fragments and building foundations remains. [ 22] Old Mission Dam San Diego 1803 Dam First major irrigation project in California. [ 23] Mission San Gabriel Arcángel San Gabriel 1805 Church The original mission was destroyed by a flood and abandoned in 1776. [ 24] The church of the present mission dates to 1805. [ 25] Great Stone Church San Juan Capistrano 1806 Church Part of Mission San Juan Capistrano. It was the only mission church incorporating six vaulted domes in its roof structure. [ 26] Casa de Rancho San Antonio Bell Gardens 1810 Residence Oldest building in Los Angeles County . Private residence. [ 27] [ 28] Ruins of Mission Nuestra Señora de la Soledad Soledad 1810 Mission The mission quadrangle was completed in 1810. [ 29] A faithful reconstruction of the mission adjacent to the ruins was completed in 1955. San Antonio de Pala Asistencia Pala 1810 Church The mission church dates to 1810. [ 30] Simi Adobe Simi Valley 1810 Residence [ 31] Mission San Buenaventura Ventura 1812 Church The original church burned down in 1793 and was rebuilt out of adobe in 1812. [ 32] Mission San Antonio de Padua near Jolon 1813 Church The original church was rebuilt three times between 1775 and 1813. [ 33] Mission San Juan Bautista San Juan Bautista 1813 Church The original adobe church was rebuilt and completed in 1813. [ 34] Mission San Luis Rey de Francia Oceanside 1815 Mission The original church, built in 1798, was rebuilt out of adobe and completed in 1815. [ 35] El Molino Viejo San Marino 1816 Gristmill Oldest mill and commercial building in Southern California . [ 36] [ 37] Covarrubias Adobe Santa Barbara 1817 Residence [ 38] Mission Santa Inés Solvang 1817 Mission The original mission was severely damaged during the 1812 Ventura earthquake . It was reconstructed with a larger church and rededicated in 1817. [ 39] Diego Sepúlveda Adobe Costa Mesa 1817–23 Residence Part of an estancia for Mission San Juan Capistrano . [ 40] Ávila Adobe Los Angeles 1818 Residence Oldest building in the City of Los Angeles . Mission San Luis Obispo de Tolosa San Luis Obispo 1818 Mission The present mission buildings were gradually rebuilt out of adobe and completed in 1818. [ 41] Plaza de las Armas San Diego 1820s Plaza [ 42] [ 43] Mission Santa Barbara Santa Barbara 1820 Mission The mission was rebuilt four times between 1786 and 1820. [ 44] Casa de Carrillo San Diego 1821 Residence Oldest residence in San Diego. [ 45] Mission San Miguel Arcángel San Miguel 1821 Church The original church burned down in 1806 and was rebuilt out of adobe from 1816 to 1821. [ 46] Convento Building Los Angeles 1822 Convent The adobe convent is the only original building left of Mission San Fernando Rey de España . [ 47] Neary-Rodriguez Adobe Santa Cruz 1822–24 Dormitory The adobe dormitory for Native American residents is the only original building left of Mission Santa Cruz. [ 48] Cooper-Molera Adobe Monterey 1823 Residence [ 49] Mission La Purísima Concepción Lompoc 1823 Mission The original mission was destroyed during the 1812 Ventura earthquake . The present mission was completed within 10 years of being rededicated in 1813. [ 50] Rancho Santa Maria de Los Peñasquitos San Diego 1823 Residence [ 51] Rafael Gonzalez House Santa Barbara 1825 Residence [ 52] Hill–Carrillo Adobe Santa Barbara 1825–26 Residence [ 53] Dominguez Rancho Adobe Compton 1826 Residence [ 54] Casa de Estudillo San Diego 1827 Residence [ 55] Old Monterey Custom House Monterey 1827 Custom house Oldest government building in California. Served as the only port of entry to Alta California . Casa de Bandini San Diego 1827–29 Residence The adobe first floor was built between 1827 and 1829. The building was later expanded during the 1840s and 1870s. [ 56] Casa de la Guerra Santa Barbara 1828 Residence [ 57] Mission Santa Clara de Asís Santa Clara 1828 Mission The mission was relocated and rebuilt several times between 1777 and 1828. [ 58] Catalina Verdugo Adobe Glendale 1828–30s Residence The estimated date of construction ranges from 1828 to the 1830s. [ 59] [ 60] House of the Four Winds Monterey 1830s Residence [ 61] Los Feliz Adobe Los Angeles 1830s Residence The adobe residence serves as the headquarters for Griffith Park . [ 62] Juan de Anza House San Juan Bautista 1830 Residence [ 63] Saint Francis of Assisi Chapel Warner Springs 1830 Church [ citation needed ] Governor Alvarado House Monterey 1831 Residence [ 64] Plaza de Yerba Buena San Francisco 1833 Plaza [ 65] [ 66] Rómulo Pico Adobe Los Angeles 1834 Residence Also known as the Andrés Pico Adobe. [ 67] [ 68] Camilo Ynitia Adobe Novato 1834 Residence The ruins of the residence are located within a wood shingle shelter. [ 69] Centinela Adobe Inglewood 1834 Residence Oldest building in the City of Inglewood. [ 70] Sherman Quarters Monterey 1834 Residence Built as a private residence in 1834. Briefly served as the quarters of Lieutenant William T. Sherman following the Conquest of California in 1847. [ 71] La Casa de Lopez San Diego 1835 Residence [ 72] La Casa de Machado y Stewart San Diego 1835 Residence [ 73] Larkin House Monterey 1835 Residence [ 74] Ríos-Caledonia Adobe San Miguel 1835 Residence [ 75] Salvio Pacheco Adobe Concord 1835 Residence [ 76] Sonoma Plaza Sonoma 1835 Plaza [ 77] Rancho Petaluma Adobe Petaluma 1835–57 Residence Largest building constructed during Mexican rule in California . Part of the Presidio of Sonoma . Blue Wing Inn Sonoma 1836 Residence Constructed as a private residence in 1836. The property was expanded into a hotel and saloon in 1848. [ 78] [ 79] Roberto-Suñol Adobe San José 1836 Residence [ 80] Robert Louis Stevenson House Monterey 1836 Residence [ 81] Rotchev House near Jenner 1836 Residence Part of Fort Ross , the only Russian colonial settlement in California. [ 82] Salvador Vallejo Adobe Sonoma 1836–46 Residence [ 83] Dana Adobe Nipomo 1837 Residence [ 84] La Casa Primera de Rancho San Jose Pomona 1837 Residence [ 85] [ 86] Jose Maria Alviso Adobe Milpitas 1837 Residence [ 87] Olivas Adobe Ventura 1837 Residence The original adobe was enlarged in 1849. [ 88] Sonoma Barracks Sonoma 1837–41 Barracks Part of the Presidio of Sonoma . [ 89] José Castro House San Juan Bautista 1838–41 Residence [ 90] [ 91] Hugo Reid Adobe Arcadia 1839 Residence [ 92] Berryessa Adobe Santa Clara 1840s Residence [ 93] Casa Soberanes Monterey 1840s Residence [ 94] [ 95] La Casa de Machado y Silvas San Diego 1840s Residence [ 96] La Casa Alvarado Pomona 1840 Residence [ 97] Los Alamos Ranch House Los Alamos 1840 Residence [ 98] Moraga Adobe Orinda 1841 Residence Oldest residence in Contra Costa County . [ 99] Vallejo's Chapel Sonoma 1841 Mission Part of Mission San Francisco Solano. The original wooden chapel, built in 1824, was rebuilt out of adobe in 1841. [ 100] Sutter's Fort Sacramento 1841–43 Fort First European colonial settlement in the Central Valley . [ 101] Peña Adobe Vacaville 1842 Residence [ 102] Yucaipa Adobe Yucaipa 1842 Residence [ 103] Casa Dolores Santa Barbara 1843 Residence Oldest extant two-story adobe in the City of Santa Barbara. [ 104] Richardson Adobe near Soledad 1843 Residence [ 105] Casa Gutiérrez Adobe Monterey 1844 Residence [ 106] Leonis Adobe Calabasas 1844 Residence [ 107] Los Cerritos Ranch House Long Beach 1844 Residence [ 108] Warner's Ranch Warner Springs 1844–46 Residence [ 109] Jose Eusebio Boronda Adobe Salinas 1844–48 Residence [ 110] Casa del Oro Monterey 1845 General store Also known as the Joseph Boston Store. [ 111] [ 112] Cayetano Juarez Adobe Napa 1845 Residence [ 113] [ 114] Moreno Adobe Jurupa Valley 1845 Residence Oldest extant structure in Riverside County . Located within Santa Rosa Plateau Ecological Reserve . [ 115] Adobe Flores South Pasadena 1846 Residence [ 116] Bale Grist Mill Napa 1846 Gristmill One of only two extant water-driven mills in the western United States. [ 117] Sánchez Adobe Pacifica 1846 Residence A two-story adobe believed to have been partially constructed using bricks from the nonextant San Pedro y San Pablo Asistencia . [ 118] California's First Theatre Monterey 1846–47 Theatre Oldest theatre in California. Built as a tavern in 1846–47. Converted to a theatre in 1850. First Brick House Monterey 1847 Residence First brick building constructed in California. [ 119] Nash-Patton Adobe Sonoma 1847 Residence [ 120] [ 121] Officers’ Club San Francisco 1847 Officers' club Adobe walls dating to the construction of the Presideo in the 1790s were incorporated into the front wings of the building. [ 122] Pacific House Monterey 1847 Storehouse Weapons storehouse built by the US Army following the Conquest of California . [ 123] This building is a California Historical Landmark (#354). [ 124] Old Whaling Station Monterey 1847 Residence Built as a residence in 1847. Converted to the headquarters of the Monterey Whaling Company in 1855. [ 125] Colton Hall Monterey 1847–49 Government First seat of government of the U.S. state of California. [ 126] Jose Joaquin Castro Adobe Watsonville 1848–49 Residence Only two-story hacienda ever built in Santa Cruz County . [ 127] Vicente Martínez Adobe near Martinez 1849 Residence [ 128] Los Encinos De La Osa Adobe Los Angeles 1849–50 Residence [ 129] Chapel of the Immaculate Conception San Diego 1850 Residence Also known as the Old Adobe Church. Dedicated as a parish church in 1856. Reyes Adobe Agoura Hills 1850 Residence [ 130] Union Square San Francisco 1850 Plaza [ 131] William Heath Davis House San Diego 1850 Residence Also known as the Davis-Horton House. [ 132] Benicia Capitol Benicia 1852 City hall Oldest extant city hall in California. Mariposa County Courthouse Mariposa 1854 Courthouse Oldest courthouse in California. Point Pinos Lighthouse Pacific Grove 1855 Lighthouse Oldest lighthouse on the West Coast . National Exchange Hotel Nevada City 1856 Hotel Oldest continuously operated hotel on the West Coast . [ 133] Old Bidwell Bar Bridge Oroville 1856 Bridge First suspension bridge built in California. The bridge was relocated in 1966 prior to the creation of Lake Oroville . [ 134] Buena Vista Winery Sonoma 1857 Winery Oldest commercial winery in California. Whaley House San Diego 1857 Residence, Courthouse & Pharmacy Oldest brick structure in Southern California . Fort Point San Francisco 1861 Fort The only extant Third System fortification in the western United States . [ 135] Bridgeport Covered Bridge Penn Valley 1862 Bridge Oldest covered bridge in California & longest wooden covered bridge in the world. [ 136] Menlo Park station Menlo Park 1867 Train station Oldest train station in California. [ 137] San Buenaventura Pier Ventura 1870 Pier Oldest pier in California. Weaverville Joss House Weaverville 1874 Taoist temple Oldest continuously-operating Taoist temple in California. [ 138] Temple Beth Israel San Diego 1889 Synagogue Tied with Temple Beth Sholom for the oldest extant synagogue in California. [ 139] [ 140] Temple Beth Sholom San Leandro 1889 Synagogue Tied with Temple Beth Israel for the oldest extant synagogue in California. [ 141] Old Chronicle Building San Francisco 1890 Office First skyscraper in California. [ 142] Pope Street Bridge St. Helena 1894 Bridge Oldest stone arch bridge in California. [ 143]