Not in my backyard. No wait, YES please in my backyard!

An Accessory Dwelling Unit is an independent additional living space to your single family home that does not require your property to be rezoned.  Common names used for detached Accessory Dwelling Units are “ADU”, “Granny Flat”, “In-Law Quarters”, “Casita”, and most recently “PIMBY” which is short for Parents In My Back Yard.

USModular is a full service design build general contractor serving a select area of Southern California and we are specialist in Factory Built Accessory Dwelling Units.

OK, so what is a “Factory Built” ADU?  The term is self-explanatory; these are ADUs that are built in a factory and shipped to the project site for installation.

Why would you choose to install a Factory Built ADU in your back yard?  There are several reasons why.  These reasons include less overall construction disruption time at the construction site, much shorter construction time frame for the project, and most importantly – significant cost savings!

Do you want your ADU project to be completed as fast as possible and at a very competitive cost?  Then you need to consider a Factory Built ADU built to the HUD/Federal Building Code from USModular.

Say what?  What is the HUD/Federal Building Code?  You thought all homes in California are built to State and local building codes? We’re going to let you in on a little, not so well known, home construction information that will save you significantly on your ADU construction costs. The HUD/Federal Building Code is a uniform building code throughout the United States.  It was established by the Federal Government as an affordable housing option. Homes and ADUs built to the HUD/Federal Code are factory built homes and are code compliant throughout the United States.

The efficiencies of building homes and ADUs in a factory on an assembly line to a simplified uniform building code allows consumers to have access to a quality, well-built home or ADU, at a much lower cost point. But wait, there’s more to the cost savings.

Effective January 2020, California requires all homes and ADUs built to the California Building Code, Title 24, have a net-zero footprint.  That means all of these homes and ADUs are REQUIRED to have a solar system.  That adds a very notable increase to the cost of homes and ADUs in California.

Now, here comes the additional cost savings of a home or ADU built to the HUD/Federal Code.  These are built to California Title 25 and are NOT required to comply with the Title 24 Solar Mandate.  In short, HUD/Federal Code homes and ADUs are not required to have a solar system.  You can have one installed on a HUD/Federal Code home or ADU – it’s your choice, not a forced requirement.

Homeowners – Investors – Real Estate Agents; Contact USModular today and let’s start your ADU project.  At USModular, we build Faster, Better, Greener and for Less!

Contact our Factory Built ADU specialist at USModular:



Article credit:

Wayne Weierbach

HCD Lic. No. SP1509008
951-679-9907, ext 1111