Why We Exist
The heart of BZ Build Co. is trust. When you build with us, you’re not just building a house —you’re building a relationship with a partner who values transparency and reliability. We understand that not every project runs perfectly, but trust is at the core of everything we do.
 
John Brennan founded Brennan Construction over 15 years ago, growing it into the leading general contracting firm in Burbank for the past four years. His partnership with Ashlyn began after successfully developing multiple residential and commercial properties together. The success they achieved on past projects inspired the idea of scaling their business together, ultimately leading to the creation of BZ Build Co. This collaboration naturally extends to the rebuilding of Altadena, Ashlyn’s hometown, with the same dedication and vision that has defined their work.
 
Rebuilding Altadena is more than just construction—it’s about restoring a community with the care, efficiency, and dedication it deserves.