ADUs: A Small Solution to a Big Problem
A growing number of cities across the United States are embracing accessory dwelling units (ADUs), also known as granny flats or in-law units, as a way to address the housing shortage and affordability crisis. ADUs are smaller, independent residential units located on the same lot as a single-family home. They can be attached to the main house, built over a garage, or stand alone in the backyard.
ADUs offer a number of benefits, including:
- Increased housing supply: ADUs can add much-needed housing units to communities without requiring the development of new land.
- Affordable housing: ADUs are typically smaller and less expensive than traditional single-family homes, making them more affordable for renters and buyers.
- Housing for seniors: ADUs can provide seniors with a place to live near family and friends while maintaining independence.
- Housing for multigenerational families: ADUs can allow extended families to live together while maintaining privacy.
- Income potential for homeowners: Homeowners can rent out ADUs to generate additional income.
As a result of these benefits, ADUs are becoming increasingly popular. In California, for example, the number of ADU permits issued increased by over 500% between 2019 and 2021.
However, there are still some challenges to ADU adoption. Some cities have restrictive zoning regulations that make it difficult or impossible to build ADUs. Additionally, some homeowners may be concerned about the impact of an ADU on their property values.
Despite these challenges, ADUs are a promising solution to the housing shortage and affordability crisis. They offer a number of benefits for both individuals and communities. As more cities embrace ADUs, we can expect to see a significant increase in the number of these units being built in the years to come.
One problem with ADU's is that the valuation or appraisal value of comparable house with ADU is not the same as duplex. There are few resales, yet and the cost to build is often higher than the appraised value for a mortgage.
- Site work: You may need to demolish an existing structure or remove trees to clear space for the ADU.
- Foundation: All prefabs require a poured cement foundation.
- Cost: The cost per square foot can vary depending on the size of the ADU.
- Zoning: You may need to consider property setbacks, topography, easements, and other zoning issues.
- Prefab homes can be more affordable and efficient to build than traditional site-built homes.