10 Common Misconceptions About ADUs in Los Angeles

May 08, 2026

Understanding ADUs in Los Angeles

Accessory Dwelling Units (ADUs) are becoming increasingly popular in Los Angeles as a way to address housing shortages and provide homeowners with additional income. However, there are several misconceptions about ADUs that often confuse those considering adding one to their property.

los angeles adu

Misconception #1: ADUs Are Illegal

Many people believe that ADUs are illegal in Los Angeles. This is not true. In fact, Los Angeles has specific regulations that allow for the construction of ADUs, provided they meet certain criteria. These regulations are designed to streamline the process and encourage more homeowners to build ADUs.

Misconception #2: ADUs Decrease Property Value

Some homeowners worry that adding an ADU will decrease their property’s value. However, the opposite is often true. ADUs can increase a property’s value by providing additional living space and potential rental income, making them a lucrative investment.

Misconception #3: ADUs Are Only for Large Lots

Another common misconception is that ADUs can only be built on large lots. In reality, many smaller lots in Los Angeles are suitable for ADUs. The city’s zoning laws have been adjusted to accommodate various lot sizes, making it easier for more homeowners to add an ADU.

small backyard

Misconception #4: ADUs Are Difficult to Approve

The approval process for ADUs is often perceived as cumbersome and lengthy. However, Los Angeles has implemented measures to expedite the approval process, including pre-approved plans and dedicated ADU units within the city’s planning department.

Misconception #5: ADUs Are Only for Rental Income

While generating rental income is a popular reason for building an ADU, they can also serve other purposes. Many homeowners use ADUs as guest houses, home offices, or living quarters for family members, offering flexibility beyond just rental opportunities.

adu interior

Misconception #6: ADUs Are Expensive to Build

Cost concerns often deter homeowners from considering an ADU. While there are costs involved, they can vary widely based on design, size, and finishes. Additionally, the potential rental income can offset these initial costs over time.

Misconception #7: ADUs Are Taxed Heavily

Some believe that adding an ADU will significantly increase their property taxes. However, property taxes are generally only reassessed based on the added value of the ADU itself, not the entire property. This means the tax impact is often less than expected.

Conclusion: Weighing the Benefits

Understanding the realities of ADUs can help homeowners make informed decisions. By dispelling these misconceptions, more people can take advantage of the benefits ADUs offer, from additional income to flexible living arrangements.