Recent changes in state law allow homeowners anywhere in California to build an Accessory Dwelling Unit (ADU) on your property-- a separate and 100% legal unit for rental income or for your family. 
Building Blocks builds beautiful, affordable ADUs on your property.   
You can now build ADUs on duplex/triplex/fourplex properties-- see below for a recently completed project in the Mid-City neighborhood (behind an existing duplex).
We provide all the services you need under one roof:
design, permitting, and construction. 
Want to work with your own architect and/or contractor? We also provide owner's representation services to make sure you're protected throughout the design, permitting, and construction process.


West Adams Casita | Freestanding ADU

675sf, 1 bedroom, 1 bathroom

Construction began October 2020, photo at right as of December 2020

400sf studio with one bathroom (Pasadena)


Jason Neville is a real estate professional whose work on Mayor Garcetti's Innovation Team helped change the law to make it easier for homeowners to build ADUs.  Jason will use that knowledge to get your ADU permitted quickly and properly.

John Perfitt is a nationally-recognized real estate professional who has built hundreds of beautiful and sustainably-designed homes in Los Angeles.  John is a licensed contractor who will ensure your project is delivered on time and on budget.



West Adams Casita | Freestanding ADU

675sf, 1 bedroom, 1 bathroom

"Building Blocks showed strong knowledge of local and state ADU policy that was invaluable in acting as an owner’s representative.  They managed design, permitting, and construction adeptly and the ADU turned out great." 


-Daniel, Homeowner/Client

University Park Garage Conversion | 400sf, 1 bedroom, 1 bathroom

"Building Blocks was great to work with - they were honest, straightforward, and flexible, and the project was completed on time and on budget. I am so thrilled with my new ADU!”

- Beth, Homeowner/Client

North Hollywood Casita | New ADU attached to existing garage

704sf, 1 bedroom, 1 bathroom

"Building Blocks was great. They took my ideas about an ADU and worked with me through the design, permitting, and construction process.  I'm super happy with the end results. "

- Alan, Homeowner/Client

Garage Conversion + Addition.  In year yard of duplex in Mid-City.  Completed February 2021.


Contact us to see if an ADU will work on your property.  
We can also answer any questions you may have-- free of charge. 

Call (818) 293-8211 or fill out the following form.

We'll get back to you within 48 hours.