[2] Baldon formed the partnership of Galper-Baldon Associates, a landscape architectural design firm, with Sid Grapher.

Baldon oversaw virtually all the projects for Galper-Baldon Associates, with the exception of landscape plantings.

[2] In 1985, Baldon told the Los Angeles Times that "I don't understand plants.

[1] Aside from her architectural work, Baldon designed furniture and formed the California company Terra with Galper-Baldon partner Sid Galper.

[2] Baldon was married, for over 50 years,[4] to novelist, screenwriter and film director Ib Melchior, with whom she co-authored the non-fiction books Reflections on the Pool: California Designs for Swimming and Steps & Stairways.