National Register of Historic Places in Sonoma County
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Sonoma Plaza Boundary Increase
Center of Sonoma
Sonoma
Built 1835 By Mexico
Sonoma was the last town under Hispanic control laid out under the Laws of the Indies. Sonoma retains its integrity to this plan with the size and location of the Plaza, orientation of the buildings, and the grid pattern of streets surrounding the Plaza.
General Mariano Guadalupe Vallejo laid out the pueblo in 1835. He brought in the earliest settlers and supervised the dissolution of Mission San Francisco Solano.
The first commercial wineries in California were established here. Other early industries included stone quarrying and fish ranching.
This historic district is the northernmost outpost for adobe buildings in the Monterey architectural style. Later residential and commercial buildings are textbook examples of architectural styles popular in America between the years 1835 and 1945: Classical Revival, Italianate, Eastlake, Queen Anne and bungalow.
Adapted from the NRHP nomination submitted in 1992.
| Name | Year | Address | Remarks | Sort Address | Sort Name |
|---|---|---|---|---|---|
| First Baptist Church (Ames Chaple) | 1850 | 1st Street East | Street 01 E | First Baptist Church (Ames Chaple) | |
| Old Sonoma Creamery | 1930 | 400 1st Street East | Mission Revival | Street 01 E 0400 | Old Sonoma Creamery |
| Pinelli Buildings | 1891 | 408 & 412-416 1st Street East | Vernacular. Built by Italian stone worker Augostino Pinelli. | Street 01 E 0408 | Pinelli Buildings |
| Old City Bakery | 1912 | 420 1st Street East | Vernacular | Street 01 E 0420 | Old City Bakery |
| Carnegie Library | 1913 | 453 1st Street East | Classic Revival | Street 01 E 0453 | Carnegie Library |
| Grinstead Building | 1911 | 466 1st Street East | Sullivanesque style | Street 01 E 0466 | Grinstead Building |
| Sebastiani Theater | 1933 | 482 1st Street East | Spanish Colonial Revival | Street 01 E 0482 | Sebastiani Theater |
| Commercial Building | 1900 | 484 1st Street East | Street 01 E 0484 | Commercial Building | |
| Commercial Building | 1900 | 521 1st Street East | Vernacular | Street 01 E 0521 | Commercial Building |
| Commercial Building | 1900 | 525 1st Street East | Vernacular | Street 01 E 0525 | Commercial Building |
| Julius Poppe House | 1847 | 564 1st Street East | Street 01 E 0564 | Julius Poppe House | |
| Residence | 1910 | 567 1st Street East | Shingle Style | Street 01 E 0567 | Residence |
| Aguillon-Ruggles Building | 1875 | 435-439 1st Street West | Vernacular | Street 01 W 0435 | Aguillon-Ruggles Building |
| Residence | 1860 | 447 1st Street West | Street 01 W 0447 | Residence | |
| Batto Building | 1909 | 453 1st Street West | Street 01 W 0453 | Batto Building | |
| Batto Building | 1912 | 457 1st Street West | Classic Revival | Street 01 W 0457 | Batto Building |
| Masonic Hall | 1909 | 465 1st Street West | Classic Revival | Street 01 W 0465 | Masonic Hall |
| Commercial Building | 1890 | 481 1st Street West | Italianate | Street 01 W 0481 | Commercial Building |
| Second Street Bridge and Retaining Wall | Second Street and East Napa Street | Street 02 | Second Street Bridge and Retaining Wall | ||
| Clewe (Johann Frederick) House | 1880 | 531 Second Street East | Italianate | Street 02 E 0531 | Clewe (Johann Frederick) House |
| Duhring House | 1860 | 532 Second Street East | Remodeled by Bliss & Faville in 1928 | Street 02 E 0532 | Duhring House |
| Clewe (William) House | 1915 | 553 Second Street East | Street 02 E 0553 | Clewe (William) House | |
| Residence | 1910 | 558 Second Street East | Bungalow | Street 02 E 0558 | Residence |
| Schweikardt Bakey (Non_Contributing) | 1891 | 520-522 Broadway | Broadway 0520 | Schweikardt Bakey (Non_Contributing) | |
| IOOF | 1911 | 521 Broadway | Classic Revival | Broadway 0521 | IOOF |
| Stage Coach (Non_Contributing) | 1905 | 524 Broadway | Broadway 0520 | Stage Coach (Non_Contributing) | |
| J.G. Marcy Plumbers | 1870 | 526 Broadway | Italianate | Broadway 0526 | J.G. Marcy Plumbers |
| G.W. Clark Cobbler | 1886 | 530 Broadway | Italianate | Broadway 0530 | G.W. Clark Cobbler |
| Industrial Building | 1880 | 530 Broadway Rear | Vernacular former blacksmith shop | Broadway 0530 Rear | Industrial Building |
| Commercial Building | 1910 | 536 Broadway | Vernacular | Broadway 0536 | Commercial Building |
| Residence | 1870 | 548 Broadway | Broadway 0548 | Residence | |
| Residence | 1880 | 578 Broadway | Queen Anne | Broadway 0578 | Residence |
| Residence | 124 Church | Bungalow | Church 0124 | Residence | |
| Commercial Building | 1915 | 15 East Napa Street | Mission Revival | Napa E 0015 | Commercial Building |
| Commercial Building | 1910 | 25 East Napa Street | Napa E 0025 | Commercial Building | |
| Commercial Building | 1900 | 29 East Napa Street | Spanish Colonial Revival | Napa E 0029 | Commercial Building |
| Boccoli Building | 1896 | 101-103 East Napa Street | Vernacular | Napa E 0101 | Boccoli Building |
| Dal Poggetto Buildings | 1908 | 107-118 East Napa Street | Vernacular | Napa E 0107 | Dal Poggetto Buildings |
| Andre Castex Building | 1904 | 127 East Napa Street | Napa E 0127 | Andre Castex Building | |
| Residence | 1880 | 139 East Napa Street | Eastlake | Napa E 0139 | Residence |
| Commercial Building | 1910 | 146-148 East Napa Street | Former Garage | Napa E 0146 | Commercial Building |
| Residence | 1900 | 151-155 East Napa Street | Napa E 0151 | Residence | |
| Residence | 1880 | 156 East Napa Street | Eastlake | Napa E 0156 | Residence |
| Residence | 1910 | 161 East Napa Street | Bungalow | Napa E 0161 | Residence |
| Residence | 1910 | 168 East Napa Street | Vernacular | Napa E 0168 | Residence |
| Residence | 1870 | 180 East Napa Street | Vernacular | Napa E 0180 | Residence |
| Sonoma City Hall | 1906 | 1 The Plaza | Mission Revival | Plaza 0001 | Sonoma City Hall |
| Bear Flag Monument (California Landmark) | 1913 | Plaza, Northeast Corner | Plaza 05 | Bear Flag Monument (California Landmark) | |
| Swiss Hotel (California Landmark) | 1850 | 18 Spain Street | Monterey Colonial adobe | Spain 0018 | Swiss Hotel (California Landmark) |
| Toscano Hotel and Kitchen | 1857 | 20 Spain Street | Spain 0020 | Toscano Hotel and Kitchen | |
| Water Tower | 1900 | 20 Spain Street | Spain 0020-3 | Water Tower | |
| Cuneo (Sebastiani) Apartments | 1938 | 30 Spain Street | Mission Revival | Spain 0030 | Cuneo (Sebastiani) Apartments |
| Bus Depot | 1939 | 38-100 Spain Street | Mission Revival | Spain 0038 | Bus Depot |
| Mission (California Landmark) | 1824 | 114 East Spain Street | Spain E 0114 | Mission (California Landmark) | |
| Residence | 1886 | 130 East Spain Street | Spain E 0130 | Residence | |
| Blue Wing Inn (California Landmark) | 1835 | 133-135 East Spain Street | Monterey Colonial adobe | Spain E 0133 | Blue Wing Inn (California Landmark) |
| Residence | 1886 | 146 East Spain Street | Spain E 0146 | Residence | |
| Residence | 1906 | 147-149 East Spain Street | Spain E 0147 | Residence | |
| Residence | 1922 | 165 East Spain Street | Bungalow | Spain E 0165 | Residence |
| Residence | 1890 | 196 East Spain Street | Queen Anne | Spain E 0196 | Residence |
| Barn | 1900 | 196 East Spain Street Rear | Spain E 0196-1 | Barn | |
| Ray Adler Adobe | 1848 | 205 East Spain Street | Spain E 0205 | Ray Adler Adobe | |
| Residence | 1911 | 206 East Spain Street | Classic Revival | Spain E 0206 | Residence |
| Residence | 1911 | 220 East Spain Street | Bungalow | Spain E 0220 | Residence |
| Residence | 1900 | 227 East Spain Street | Spain E 0227 | Residence | |
| Cooke House | 1852 | 245 East Spain Street | Spain E 0245 | Cooke House | |
| Castagnasso House | 1849 | 256 East Spain Street | Enlarged and moved twice. | Spain E 0256 | Castagnasso House |
| Sonoma Hotel | 1872 | 110 West Spain Street | Spain W 0110 | Sonoma Hotel |
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Sonoma Plaza Historic District
520-522 Broadway is located within the boundaries of the Sonoma Plaza Historic District, but it does not contribute to the district. The National Register nomination form notes that:
"520-22 Broadway is a one-story commercial building altered outside the period of significance."
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Sonoma Plaza Historic District
524 Broadway is located within the boundaries of the Sonoma Plaza Historic District, but it does not contribute to the district. The National Register nomination form notes that:
"524 Broadway is a one-story commercial building which has been altered with no distinguishing characteristics remaining."
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Sonoma Plaza Historic District
One-story Italianate commercial building, built in 1870, with a false front with brackets, shiplap siding, and large windows.
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Sonoma Plaza Historic District
One-story Italianate commercial building built in the 1880s with shiplap siding, bracketed false front, and large 4-light windows flanking the center door.
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9 August 2026
Sonoma Plaza Historic District
One-story frame house with a gable roof with a break that extends to form a porch over the 5-light wood casement windows on the north elevation. It was enlarged in the 1940s during the period of significance.
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9 August 2026
Sonoma Plaza Historic District
Vernacular style frame house. The first floor was built in 1849; a second story was added in 1878. The entry door has a glazed transom and sidelights. The building was first moved in 1856 and then again to its present site in 1902.
Buildings that Moved
It's not just that the people of the American West are restless, the buildings themselves sometimes pack up and move when - for one reason or another - the neighborhood no longer suits them or the neighbors no longer want them or opportunity waits down the road.
And when buildings remain in place, they are often searching for their identities.
Acting Superintendent's Office, Yosemite
Alford-Nielson House, Ferndale
Alpine Hotel, Markleeville
Ashland Depot Hotel, Ashland, Oregon
Auburn Fire House No. 1, Auburn
Bagby Stationhouse, El Portal
Bayview Hotel, Aptos
Bridgeport Elementary School, Mono County
Calvary Presbyterian Church, Bolinas
Carter House, Ashland, Oregon
Castagnasso House, Sonoma
Christian Church, Gilroy
Choller Mansion, Virginia City, NV
Chuck's Railroad Room, Westwood
Colfax Freight Depot (Moved Twice), Colfax
Commodore Watkins House, Atherton
Coyle-Foster Barn, Shasta State Historic Park
Croll Building, Alameda
Dallam-Merritt House, San Francisco
Davis Creek Community Church, Davis Creek
Duatre's Store, Monterey
Errea House, Tehachapi
Fairwind, Eureka
First Baptist Church, Sonoma
Fort Bragg Storehouse and Commissary, Fort Bragg
Galarneaux House, Sacramento
Glass House, San Ramon
Glendale School (Moved Twice), Sparks, Nevada
Goleta Depot, Goleta
Hicks House, Graton
Hostess House, Palo Alto
Hostess House, Palo Alto
Hodgdon Homestead Cabin, Yosemite
House at 2214 Clay Street, San Francisco
Hutton House, Saratoga
Independence Hall, Woodside
J & T Basque Restaurant, Gardnerville, NV
Jamestown Branch Jail (Moved Twice)
Jax Truckee Diner (Moved Twice), Truckee
Jorgensen Studio, Yosemite
Kenwood Community Church, Kenwood
King City Depot, King City
La Gloria Schoolhouse, King City
Lagunita Schoolhouse, Salinas
Lake Mansion (Moved Twice), Reno
Lathrop House, Redwood City
LeConte Memorial Lodge, Yosemite
Little Church on the Hill, Oakhurst
Mansion House Hotel, Watsonville
Marcus Books and Jimbo's Bop City, San Francisco
McCredie House, Central Point, Oregon
Meherin House, Pismo Beach
Mendocino Masonic Hall, Mendocino
Methodist Episcopal Church, Placerville
Migliavacca Mansion, Napa
Milton Masonic Hall, Milton
Moab Cabin, Moab, Utah
Mt. Buckingham School, Darrah
Nevada-California-Oregon Railway Depot, Alturas
Old Log Jail (Moved Twice), Markleeville
Old Mammoth Saloon (Moved Twice), Mammoth Lakes
Old North San Juan School, North San Juan
Old St. Mary's Church, Rocklin
Old St. Patrick's Church (Moved Twice), San Francisco
Perry's Dry Goods, Gardnerville, NV
Phelps House (Moved Twice), San Francisco
Rengstorff House, Mountain View
Reno Arch (Moved Five Times), Reno
Roper House, Ashland, Oregon
San Rafael Improvement Club, San Rafael
St. James Catholic Church, Georgetown
Sylvester House , San Francisco
Tribune-Republic Building, San Luis Obispo
Tubbs Cordage Company, San Francisco
Tucker House, Martinez
Twenty Mile House, Cromberg
United Methodist Church, Nevada City
Webber House, Yountville
Wood House, Modesto
Yosemite Transportation Company
Yosemite Valley Chapel
Of the buildings and structures we have visited, the original Reno Arch holds the record for number of moves. It has been moved five times since it was built in 1926.
Jax Truckee Diner holds the distance title. The building moved from New Jersry to Pennsylvanis in 1948, then from Pennsylvania to Califonia in 1992.
Probably the most ambitious relocation occurred on July 4th 1904, when the Southern Pacific Railroad loaded most of the town of Wadsworth, Nevada, onto rail cars and transported the town thirty miles west to create a new town which became known as Sparks.
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9 August 2026