Preserve What We Love

Altadena Heritage was founded in the early 1980s, when many beautiful old homes and mansions were being demolished and replaced with tract developments, placing our community’s architectural heritage in peril. Members at the time did a comprehensive survey of the existing pre-war homes, and conducted research on builders and architects. This information was encoded in a searchable database kept in our office along with a trove of old real estate documents, enabling those who want to research their houses to find this information. Old Marengo Park was developed as a joint project of the Altadena Watershed Committee, the Arroyos and Foothills Conservancy, and Altadena Heritage. Altadena Heritage does regular park maintenance, and last summer shared the expense of tree-trimming with the Arroyos and Foothills Conservancy. Anyone interested in joining our Park Maintenance Team

Altadena Quiz

Altadena Quiz

Test your mastery of all things Altadena! Whether you are a life-long resident or new to the area, try your luck on our quiz.

AHAD: Altadena Heritage Architecture Database

AHAD: Altadena Heritage Architecture Database

Altadena Heritage was founded in the early 1980s, when many beautiful old homes and mansions were being demolished and replaced with tract developments, placing our community’s architectural heritage in peril. Members at the time did a comprehensive survey of the existing pre-war homes, and conducted research on builders and architects.

Parks Report

Parks Report

About 65 people gathered January 21 at the Community Center for a spirited public discussion about Altadena’s park needs.