Palo Alto Plantation is an historic mansion located at the corner of LA-1 and LA-944, along Bayou Lafourche in Donaldsonville in Ascension Parish, Louisiana.

[1][2] The architecture is an Anglo-Creole type Louisiana plantation cottage decorated in Greek Revival style.

[3][4] This house was subject to multiple painting by French-born artist, Marie Adrien Persac (1823–1873).

[4] The plantation house is a 1+1⁄2-story building on brick piers with a twelve-foot-wide porch set under the roof line.

[5][6] The window panes of the house are more than 170 years old and contain etchings with names and initials, and it is said to be how the family would check if their engagement diamond rings were real.