Typically, homeowners must hire an architect and a contractor and take care of permits and other paperwork.

Perpetual Homes ADU is responsible for all of these tasks, including design, permitting, construction, and installation of the ADU. Perpetual Homes' fixed cost covered not only the cost of construction and installation, but also the cost of permitting, utility connections, and landscaping.

Many different types of properties will accommodate an ADU. In most cases, properties with a flat backyard with few obstructions, and where an open space with minimum dimensions of 45′ x 25′ can be created, will work. If you aren’t sure, contact us and we’ll review property information online and even perform a site visit to determine if your property is suitable for a Perpetual Homes.

A Perpetual Home is a self-contained living space with the look and feel of a home. Each Perpetual Home has a living space, a kitchen with full-size appliances, a bathroom, and a bedroom (s). High-quality materials with full-sized windows and doors are used during the construction of each unit.

While these terms are easy to figure out, there are differences that are not immediately apparent. Yes, a factory-built home is just that…a home that is fully constructed in a factory. After the framework construction, the interior finish, countertops and cabinetry, carpet and another final finish work is completed. Factory-built homes are transported to the site and quickly assembled, ensuring minimal weather exposure. Once the sections of the house are assembled, utilities are connected, and a short list of interior finish work is completed. The site will have been prepared while the home was being constructed.

A site-built home is one where all the components, right down to the lumber and fasteners, are brought to the outdoor location and assembled outdoors, piece-by-piece, and exposed to the weather during most of the process.

We believe there are distinct advantages to the factory-built model.

All assembly is done under climate-controlled conditions. None of the building materials are exposed to the weather before or during construction. Before building materials are used, they are also stored indoors. In the construction of site-built homes, materials are exposed when stored on-site before use, and during most of the construction process until the home is fully sealed. Exposure to outdoor conditions, especially rain and moisture, can cause increased expansion, contraction, and warping and can increase the potential of mold problems.

Factory-built homes are generally stronger. They’re constructed to withstand transportation, and as a result, are sturdier once they’re on site.

Factory construction is more efficient. Site work and construction of your home can happen at the same time. And because all materials are on hand, there are no delays in material delivery. And weather-related delays are virtually non-existent. On average, you’ll be able to move into your factory-built home in far less time than conventional construction.

Perpetual Homes sells fully installed ADUs, duplexes, and single-family homes  in the California market starting in the mid price of $100,000’s. This price includes all permits, installation costs, utility connections, appliances, and landscaping. Perpetual Homes is one of the most affordable but high-quality options for a detached ADU.

Because of the variability of site characteristics, Perpetual Homes' fixed price will not cover the cost of removing existing structures, large trees, underground storage tanks and cesspools, and other impediments to installing an ADU, nor will Perpetual Homes cover the cost of non-standard installations or utility connections, or upgrading utility service to a property to serve the ADU. In addition, impact fees can vary; these costs are passed through to the homeowner.