Rice was the daughter of Julius Augustus Rice (1854–1933) and Laura (Steele) Rice (1854–1939) and was born in
National City, California, ten miles north of the Mexican border in South Bay,
San Diego County. She was a direct patrilineal descendant of
Edmund Rice, an early immigrant to the
Massachusetts Bay Colony. In 1906, she entered the University of California and successfully completed her Bachelor of Letters Degree in Social Science with a major in architecture in 1910. In 1911 she completed a course in teaching there. She returned to National City, where she worked for several years in the office of San Diego architect
Hazel Wood Waterman. She later taught geometric drawing at Russ High School (now
San Diego High School) and then at
San Diego State Teacher's College (now
San Diego State University). In 1921, Rice was chosen by
Richard Requa, of the firm of Requa and Jackson, to be the lead planner on the new development at
Rancho Santa Fe in
San Diego County. From 1922 until 1927 this project consumed much of her time. After her association with Requa and Jackson, Rice opened her own architectural firm in 1928, and would receive her architect's license the following year. In 1931 she became a member of the San Diego Chapter of the
American Institute of Architecture, one of only a few women admitted up to that time. In July 1938 Rice was diagnosed with ovarian cancer by La Jolla physician Ross Paull, and on December 22 of the same year she died of the disease. At the time she was a permanent resident of Rancho Santa Fe. She was cremated and her remains were interred at La Vista Memorial Park Cemetery in National City. In later years the Rice family headstones were vandalized, but well-meaning volunteers replaced the violated headstones. It was at this time that Lilian J. Rice's birth date was incorrectly assigned. However, sponsored by Miriam W. Sellgren, a then living relative by marriage, of Rice's, the headstone was replaced, etched with her correct birth year. Contemporaneous birth announcements in the
National City Record and the
San Diego Union, plus Lilian Rice's birth certificate, prove unequivocally that she was born on June 12, 1889. The Lilian J. Rice Elementary School in
Chula Vista, California is named for her. In 2018, noted the Times, she was included in
Pioneering Women of American Architecture, a website featuring 50 women born before 1940 who made important contributions to architecture. While Spanish Colonial Revival was not uncommon at the time, Rice was significant in making it a widespread style in California, said Mary McLeod, a professor of architecture at Columbia University Graduate School of Architecture and an editor of the website project. “She was designing and working as an independent architect and was so productive,” McLeod said in an interview. “I have wondered if California offered women more options, if there was more freedom there.” Rice designed at least 60 homes in Rancho Santa Fe, according to author of "Lilian J. Rice, Architect of Rancho Santa Fe, California" [Schiffer Publishing], Diane Y. Welch, Rice's official biographer. And while many have been greatly remodeled since they were built, Rice’s name still carries weight. “People cherish and value a Lilian Rice home,” she said. ==Partial list of buildings==