Structural Engineering Experts

Peter Erdelyi & Associates is one of the top structural engineering firms in Southern California. We have been operating since 1978.

In 1974 Peter Erdelyi started working as a professional engineer in California. In 1978 he became one of the initial co-founders and owners of Erdelyi, Moon, Mezey and Associates, a partnership of structural engineers. Subsequently the name was changed to Erdelyi, Mezey and Associates and to its current form, Peter Erdelyi and Associates, in 1988.

In 2005 Sayed Attaalla joined the firm and currently holds the titles of Vice President and Chief Engineer. The arrival of Sayed marked the beginning of a period of rapid growth in company size and an increase in the number of concurrent projects handled. With Mr. Attaalla’s invaluable contribution, our team has designed many highly complex projects in the recent past.

The company continued working out of its original location just south of Beverly Hills until its relocation to a new office building in December, 2009.

We have designed more than 10,000 structures in the Los Angeles area over the past four decades; from apartment buildings to new single-family homes to additions and remodels both for residential and commercial clients. Our team of professional engineers, drafters, expeditors and project staff will deliver plans that withstand the test of time.

Whether you’re upgrading an existing structure or building from the ground up, Peter Erdelyi & Associates has the expertise to oversee your project through completion.


Peter T. Erdelyi

Principal Engineer | CEO | Founder

Engineering Team

Stephanie Sandoval

Project Engineer

George Yap

Project Engineer

Design Team

Kathy Erdelyi

Project Designer

Akram Tawfic


Ildiko Babucsik



Ben Robles


Rodgie Tiratira


Administrative Staff

Office Manager

Pamela Sankhar

Front Desk

Steve Zador


Ilona Bellinger

Accounts Receivable