Westwind Community Barn in Los Altos Hills - photo from Wikipedia
Westwind Community Barn in Los Altos Hills

This page is a quick summary of resources a homeowner may want to investigate when considering a project that involves a contractor and a permit in Los Altos Hills

Tips for Hiring a Contractor

Los Altos Hills Plumbing Services and Project Types

WaterSewerElectrical ConduitOther
Water Leak Repairs (typically no permit)
 
Water Line Replacements and Upgrades

Backflows
New Cleanouts
 
Adding new connections to existing sewer line
 
Backwater Valves
 
New connections to the main
Installing new conduit, usually as part of an electrical upgradeIncludes septic systems, sewage pumps, water pumps, storm drains, French drains, foundation waterproof protection, water storage tanks, water wells
Permits:
Building, Public Works when touching public assets, Utility when touching a private utility property
Permits:
Building or no permit

Explore our full list of Services for more details.

Permits

A permit is an official document issued by local governments and utility providers that grants permission to construct or alter a property. Its primary purpose is to ensure that construction projects comply with local building codes, zoning laws, and safety regulations.

As the property owner, you usually have the option to obtain a permit for projects solely on your private property. While getting a permit may add to the cost and timeline of your project, it also provides peace of mind, knowing that your project has been reviewed by an expert in local building codes.

Anytime your project involves a public or utility-owned asset, you must obtain a permit.

If you hire us to assist with your project, we will file for any necessary permits. Typically, our clients pay the cost of the permit directly to the issuer, but they save on the time and expense of filing, which is part of our service.

There are three types of permits we generally work with.

BuildingPublic Works (aka Encroachment Permits)
Utility Provider
Generally easy to file for and not very expensive for the types of projects we do. They cover projects on private property.Public Works Permits can be a lengthy and time-consuming task to obtain. We are experienced in filing for these types of permits and recommend you allow us to provide that service to you.When the City/Town provides the utility service, it is included with a building or public works permit. If the utility is managed separately, the property owner must obtain permission and adhere to the utility’s building codes.

As a licensed contractor in California with significant experience delivering projects in the local communities of the San Francisco Bay Area, our construction practices and materials comply with the California Building Code (CBC). We encourage our clients to get permits but doing so is not required.

City of Los Altos Hills Links

Town of Los Altos Hills Building Dept
The Los Altos Hills Building Department provides a helpful page for understanding the process of obtaining building permits.
https://www.losaltoshills.ca.gov/292/Building-Department
Town of Los Altos Hills Public Works Dept
The Los Altos Hills Public Works Department provides a diagram to explain a property owner’s sewer later responsibility–everything from your home to the sewer main. They do offer a counter consultation with Engineering if you want to explore an encroachment permit on your own.
Public Works
https://www.losaltoshills.ca.gov/197/Public-Works-Engineering

Encroachment Permit
https://www.losaltoshills.ca.gov/DocumentCenter/View/5281/Encroachment-Permit-Application-Updated-January-2023?bidId=
Water Utility
Most of Los Altos Hills is served by the Purissima Hills Water District, while Calwater manages water service for the remaining areas.

For Purissima Hills Water District, visit the provided link and navigate to Customer Service -> Rates and Fees -> Start Service to fill out the form and begin your request. Note that a Public Works Encroachment permit is required for projects in the public right-of-way.

If Calwater is your water provider, you will need to call them for any work on the meter to the main.

Purissima Hills Water District
https://www.purissimawater.org/


Calwater, Los Altos Suburban District
https://www.calwater.com/district-information/?dist=las

Customer Service
7:00 a.m. to 7:00 p.m.
(650) 917-0152
Sewer Utility
The Town of Los Altos Hills manages sewer services for its residents. To repair or upgrade a sewer line at the property line cleanout and towards the main, residents must obtain a permit through the Engineering Division of Public Works.
See Public Works above

Note that some homes may have a City address but are not serviced by Utilities in the above list. As a homeowner, you likely already know who you pay your water and sewer fees to but if you are not sure, you can check the above links and then check your County for sewer and www.calwater.com for water.