Fernandez, Bernardo, House

Pinole, Contra Costa County, California Listed Ref. 73000399 Building
Fernandez, Bernardo, House, Pinole, California
Photo: Sanfranman59, CC BY-SA 3.0, via Wikimedia Commons
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Why it's listed

Built in 1894 for Bernardo Fernandez, this 20-room mansion at 100 Tennent Avenue in Pinole is a two-story wood-frame house over brick, with attic rooms and a full basement. Its eclectic design combines Second Empire, Queen Anne and Eastlake elements, a mix often called the San Francisco Style. A monumental exterior stairway leads to a spindle-work porch, and a tower-like projection rises to a small mansard roof with dormer windows. Inside, features include a pressed leather wainscot, oak floors with inlaid borders, walnut balusters and a living room divided by an archway with Doric columns. The house sits on the site where Fernandez began a waterfront business in 1854, which became the first operating industry in Pinole. His docks, warehouses, shipping and mail service made the landing a trading center for West Contra Costa County. The nomination describes the mansion as the only significant house of its era and style remaining in the city.

Significance in brief: The nomination calls it the only significant house of its era and style still standing in Pinole, and a well-preserved example of the eclectic "San Francisco Style" blending Second Empire, Queen Anne and Eastlake forms. It also stands on the site of the Fernandez waterfront enterprise, begun in 1854, which became Pinole's first operating industry and a trading port.

Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 73000399, listed April 11, 1973. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).

Key facts

Address100 Tennent Ave., Pinole
CountyContra Costa County
ListedApril 11, 1973
Reference number73000399
Resource typeBuilding
Period of significance19th Century; 1894 (construction)
Architectural styleEclectic late 19th century "San Francisco Style" combining Second Empire (French Mansard), Queen Anne and Eastlake, executed in wood
Areas of significanceCommerce, Architecture
Level of significanceLocal
Status (as stated in the nomination)Listed as in good condition, with a continuing restoration program in progress; the form describes it as a private residence and notes a conversion of the original library to an office. The 1972 correspondence mentions a threat of demolition for an apartment complex.
Acreage3
Coordinates38.01142, -122.29539 (NPS GIS)

What listing means for this property

National Register listing is honorary for a privately owned home: it does not by itself restrict what an owner may do with their own money, and it does not require public access. Restrictions come from local landmark or historic-district ordinances, which are separate (how they differ).

Owner-occupied houses are not eligible for the 20% federal rehabilitation tax credit, which applies to income-producing buildings, but many states offer credits for homeowners. Listing also opens the door to preservation easements and to buying a plaque. Start with what listing means for homeowners, renovating a listed house and selling one.

General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.

Sources and further reading

Last updated October 2026. Found an error? See the editorial policy for how to report it.