ADU Permit San Jose CA

Permitting fees vary significantly by city, so knowing this information before you begin construction on your ADU. As a result, always double-check the city or municipality where you live.

ADU Permit San Jose CA - Fees for ADU Permits in California 2021

By adding a granny flat, clever homeowners optimize their space and increase the value of their homes. These self-contained living rooms are frequently used to house elderly parents, but they can also accommodate an Airbnb visitor or a young adult. Because the county of San Jose is experiencing a housing scarcity, now is a perfect moment to develop a carriage house. Even so, you are undoubtedly curious about the expense of constructing one in San Jose. ADU Permit San Jose will explain the handful of permit fees involved in building a granny flat; thus, you can decide your budget.


San Jose ADU Permit Fees remind you that the cost of a permit varies depending on the municipality. You can anticipate paying permit costs proportional to the size of the primary residence if you want to build an ADU greater than 750 square feet.

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ADU Permit San Jose is a design-build company specializing in bespoke houses, entire house remodels, fire rebuilds, and accessory housing units. We are the industry leaders in fire-resistant design and construction. We are a locally owned and operated business that has been in operation since 1982. We are dedicated to completing high-quality construction projects that are completed on schedule and within budget. We take great satisfaction in ensuring that every one of our customers has a pleasant and stress-free construction experience. Our experts will walk you through every stage of the construction process. Our company's fundamental values are honesty, ethics, and excellent customer service.

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Fees for Causing an Impact

Impact costs will almost certainly be lowered or waived if your ADU is less than 500 square feet. San Jose ADU Permit Cost wants you to expect to pay a school impact charge, sewage and water connection fees, solar fees, and occasionally traffic impact fees if you are looking for something between 500 and 750 square feet. Many of the costs mentioned below may apply to ADUs greater than 750 square feet. If you live in a coastal zone, you may be subject to higher expenses, but nothing prevents you from having an ADU.

San Jose ADU Permit

In California, you must obtain a construction permit, which includes permits for mechanical, electrical, and plumbing work, as well as specific expenses for each design aspect. Building permits are fixed-cost permits, including zoning approvals in some cases or square footage-based permits. Building permits range in price from $450 to $2500 (low end average) to $4500 to $15,000 (high end average) (high end average).

Obtaining the proper permissions for your ADU will only take up a minor portion of your overall price. Yet, ADU Permit San Jose points out that:

  1. Water and sewer connection fees vary per city, but in some instances can cost up to $2000.
  2. School costs are nearly ubiquitous, ranging from $3 to $4 per square foot of finished ADU; however, this varies by municipality.

Occupation Certificate

As mentioned by your ADU Permit San Jose, obtaining a certificate of occupancy is the final step before moving in. A city will either charge a flat cost for the occupancy permit process or the building inspector’s time spent inspecting the house, which can take anywhere from 2-4 hours to upwards of 8 hours or more. These permits usually cost between $250 and $500.

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