Atherton Building Department 2026: Permits, Inspections & Services

Atherton Building Permits & Inspections: Quick Guide

The Atherton Building Department handles building permits, construction plan reviews, code compliance, and inspections within the Town of Atherton, California. Homeowners, contractors, and property owners can submit building plans electronically, check permit records, and schedule inspections through the Town’s official services.

Atherton Building Department Contact Information

The Town’s Permit Center coordinates services involving Building, Planning, and Public Works. Building staff handle construction-code compliance and inspections, Planning staff address zoning and land-use matters, and Public Works handles matters such as right-of-way and encroachment permits.

Before visiting: Call the department if you need a particular staff member or a specialized review. Planning counter consultations are generally available during the same service hours on Tuesdays and Thursdays.

What Building Permits Are Available in Atherton?

Atherton reviews residential and applicable nonresidential construction projects. The permit type depends on the proposed work, property conditions, and applicable California and local requirements.

Important: Not every small project requires a building permit, but a permit exemption does not automatically exempt work from zoning, electrical, plumbing, fire, or other applicable regulations. Atherton publishes guidance on exempt work and separate permits in its general building information resources.

How to Apply for an Atherton Building Permit

Atherton provides an electronic plan-submission process with separate routes for new applications and existing projects. Follow these steps to prepare and submit your materials.

1. Confirm the property and project requirements.

   Check that the property is inside Atherton town limits. Identify whether the work needs Building, Planning, Public Works, or fire-district review. For zoning or property information, use the Town’s eTRAKiT guide.

2. Download the correct application and checklist.

   Open Permit Applications, Fees & Forms. Select the Building or Grading Permit Application, Square Footage Worksheet, or another form appropriate to your project. Review the project-specific submittal checklists.

3. Prepare the required construction documents.

   Complete the application and assemble applicable site plans, floor plans, elevations, structural calculations, energy documents, grading information, tree protection documents, and supporting approvals. Plans and technical documents must be prepared and signed by the responsible designer as required.

4. Open the official ePlan submission page.

   Visit Atherton Building ePlan Submittal. Choose New Applicant Submittal for a new project. If the Town has already assigned a permit number, choose Existing Project Submittal instead.

5. Upload the documents and respond to plan review.

   Follow the secure upload instructions, provide the requested information, and retain your submission reference. Pay applicable plan-check fees through the method instructed by the department. If reviewers request corrections, update the documents and resubmit through the existing-project route.

6. Obtain permit issuance before regulated work begins.

   Complete outstanding approvals, required licensing, applicable payments, and preconstruction requirements. Keep the issued permit documents available at the job site and schedule inspections at the required construction stages.

Documents You May Need for a Building Permit

Atherton’s building-plan checklist identifies different requirements depending on project scope. Preparing the right materials before submission can prevent incomplete-plan returns and unnecessary review delays.

Common application documents

• Completed building permit application and applicable square-footage worksheet.
• Project address, assessor’s parcel number when requested, owner and applicant contact information.
• Contractor license and workers’ compensation information, or applicable owner-builder documentation.
• Site plan showing buildings, property lines, setbacks, trees, and proposed work.
• Floor plans, elevations, roof plans, and foundation or structural details where applicable.
• Applicable California Title 24 energy documentation and CALGreen measures.

Additional documents for more complex projects

• Structural calculations and geotechnical reports.
• Electrical, mechanical, and plumbing plans.
• Construction, Operations and Parking (COP) plan.
• Tree protection and landscape screening plans.
• Grading and drainage calculations.
• Demolition and construction-waste documentation.
• Special inspection agreements and applicable agency approval letters.
• Water-efficient landscape documentation when required.

Atherton-specific requirement: The Town’s published checklist identifies tree protection as an important pre-issuance item. For applicable construction projects, required tree protection must be installed and inspected before permit issuance. The checklist also describes a required Town business license for the primary contractor before issuance.

For larger projects, consult the official building plan submittal checklist (PDF). Some forms still bear older revision dates, so confirm current document and code requirements before filing.

Atherton Building Inspections: Scheduling and Requirements

Building inspections check whether permitted work complies with approved construction documents and applicable safety standards. Atherton publishes specific scheduling procedures, inspection windows, and preparation requirements.

How to request an inspection

1. Locate the building permit number. Have each relevant permit number available.
2. Call 650-752-0542.
3. Provide the job-site address and type of inspection requested.
4. Give the requester’s name and a telephone number for the job site.
5. On the inspection morning, call 650-752-0561 to confirm the approximate arrival time.
6. Ensure someone is present with the approved job plans and permit/job card.

Inspection times and cancellations

Scheduling depends on the Town’s operations and availability. An inspection request does not mean the work has passed inspection. Do not cover construction elements that require inspection before receiving the necessary approval.

Final inspection requirements

Depending on the project, final Building Department approval may require completion or sign-off of:

• Landscape screening requirements.
• Grading and drainage requirements.
• Applicable encroachment permits.
• Required Menlo Park Fire Protection District approvals.
• Contractor and subcontractor licensing documentation.
• Other permit-specific corrections or conditions.

Before requesting a final inspection, review the Town’s construction and inspection instructions and its linked Builder’s Final Inspection Checklist.

Atherton Building Permit Fees in 2026

Building permit fees in Atherton depend on the type and scope of work. Some projects, including certain reroofing, pool, patio, and accessory-structure work, have flat-fee categories. Larger construction projects may use service-requirement calculations based on square footage and the Town’s adopted valuation table.

The Town’s current fee guidance identifies a $550 per-square-foot service requirement factor for new habitable construction, effective July 2026. This is a calculation input, not a $550-per-square-foot permit charge.

Official 2026 new-home fee example

The Town publishes the following illustration for an 8,000-square-foot new home.

This is the Town’s illustrative example, not a quote for another property. Actual charges can include technology, General Plan, Planning, engineering, and other applicable fees or surcharges. The Town also identifies separate fee rules for certain specialized permits.

To estimate your fee: Open the official Atherton Master Fee Schedule, identify the project category and applicable valuation method, then contact the Building Department at 650-752-0560 for an estimate specific to your project.

Which Building Codes Apply in Atherton in 2026?

Atherton’s City Council adopted updates to Title 15 of the Atherton Municipal Code in January 2026 through Ordinance 676, incorporating the 2025 California Building Standards Code and applicable local provisions. The 2025 California code cycle is the relevant statewide cycle for new 2026 work, subject to applicable transition rules and project-specific determinations.

Requirements may involve the California Building Code, Residential Code, Electrical Code, Plumbing Code, Mechanical Code, Energy Code, CALGreen, Fire Code, and Atherton’s local amendments.

For construction planning, check:

• The applicable adopted code edition and any local amendments.
• Structural, electrical, mechanical, plumbing, and energy requirements.
• Fire-safety requirements enforced through the applicable fire authority.
• Local zoning, tree preservation, landscape screening, and drainage requirements.
• Whether an existing application or issued permit is governed by an earlier code edition.

Construction Hours and Local Restrictions

Atherton restricts construction activity, deliveries, and work-related servicing to protect nearby residents and limit neighborhood impacts.

The Town’s 2026 construction calendar expressly permits construction on certain dates that may otherwise be mistaken for holidays, including October 12, 2026 (Columbus Day) and November 27, 2026 (the day after Thanksgiving). The calendar also contains year-end instructions that should be checked alongside the general weekend restrictions.

Because the official general webpage and annual holiday handout do not present every year-end condition in exactly the same way, confirm any unusual holiday or weekend schedule before arranging work.

View Atherton’s official 2026 construction calendar (PDF).

Working outside permitted hours, performing unpermitted work, exceeding an approved permit’s scope, or covering work before required inspections can result in enforcement action, including a stop-work order.

How to Search Atherton Building Permit Records

Atherton uses an eTRAKiT portal to provide public access to available building permits, planning projects, and property-related information. This is useful for homeowners checking permit history, contractors reviewing project records, and buyers investigating previous construction.

1. Open the Atherton eTRAKiT Permit Search.
2. Choose the available search field, such as permit number or property information, as supported by the portal.
3. Enter the permit number or address details and run the search.
4. Select a matching record to inspect available permit information, review history, fees, conditions, or inspections.
5. If you need property zoning or planning records, use the portal’s Property or Project search area.

Address search tip: Atherton instructs users to omit the street-type suffix when searching certain property addresses. For example, instead of entering “109 Atherton Avenue,” try “109 Atherton.”

Older records may not be available online. If a search returns no results, confirm that the address is within Atherton and contact the Planning and Building counter for assistance. A missing online record does not establish that no permit exists.

Other Approvals That May Affect Your Project

Building permits are not always the only approval needed. Atherton projects may involve multiple reviewing agencies depending on property conditions and proposed construction.

For construction involving excavation, substantial landscaping, demolition, or tree removal, clarify these approvals early. A complete building-plan package can still require additional departmental sign-offs before issuance or final approval.

Common Permit Problems and What to Do

For project-specific questions, provide the property address, permit number if available, scope of work, and a clear description of the issue. This helps the department identify the correct record and next action.

Atherton Building Department: 10 Frequently Asked Questions

Official Atherton Building Department Resources

Use these Town and State resources for applications, records, current regulations, and official action.

• Atherton Building Department — Department contact information and responsibilities.
• Atherton Permit Center — Building, Planning, and Public Works services.
• Building ePlan Submittal — New applications and existing-project uploads.
• Permit Applications, Fees & Forms — Building applications, owner-builder forms, and other documents.
• Building Submittal Checklists — Project-specific requirements.
• Construction & Inspection Information — Scheduling, deadlines, and final inspections.
• Atherton Master Fee Schedule — Official current permit-fee guidance.
• eTRAKiT User Guide — Permit-history and property-search instructions.
• General Building Information — Permit exemptions, construction handouts, and code-related resources.
• California Building Standards Commission — State building-code resources.

Independent information notice: USBuilding.org is an independent informational website and is not affiliated with or operated by the Town of Atherton. This guide summarizes publicly available government information checked October 8, 2026. Government rules, fees, staffing, and online procedures can change. The responsible government agency makes official permitting and inspection decisions.