Planning a custom home in Hermosa Beach

1. 01

   Check the lot against the Coastal Zone

   The Local Coastal Plan page describes the Coastal Zone boundary and the City's partial Land Use Plan update with the Coastal Commission.

   Official resource: Hermosa Beach · Local Coastal Plan

   Applies to a specific area, zone or overlay · Passage checked October 13, 2026

2. 02

   Plan for concurrent review

   The City routes submittals to Planning, Building and Public Works at the same time. An optional Preliminary Planning Review gives one planning-only round of comments first.

   Official resource: Hermosa Beach · Application & Submittal Process

   City-wide guidance · Confirm the current content directly with the agency

3. 03

   Know which code edition applies

   Building codes are updated on a cycle. Ask Building & Safety which code edition will apply to your project and what event fixes it.

   Official resource: Hermosa Beach · Application & Submittal Process

   City-wide guidance · Confirm the current content directly with the agency

4. 04

   Gather forms and handouts

   Applications, plan submittal requirements, demolition permits and LA County Fire submittals are listed together.

   Official resource: Hermosa Beach · Applications, Forms, Maps & Handouts

   Lookup tool or portal · Confirm the current content directly with the agency

Each step links to the official page it comes from. Requirements differ by parcel; confirm with the agency.

Hermosa Beach is an incorporated city in Los Angeles County.

City of Hermosa Beach — Community Development (Planning, Building & Safety) with Public Works.

• Permit authority guide: Hermosa Beach permits
• Remodeling and ADU page for this city

Which planning question to resolve first here, and why it shapes the brief. Each answer comes from the cited City page or stays a question for staff.

1. Question 1

   Is the lot in the Coastal Zone on the City's zoning map?

   The City states its Coastal Zone covers about 43% of its land area and points to the zoning map to check (read October 13, 2026).

   source: Hermosa Beach · Local Coastal Plan

2. Question 2

   Will a Coastal Commission permit follow City approval in concept?

   The City explains that new development may require a Coastal Development Permit from the Coastal Commission after the City approves the proposal in concept. That adds a separate agency step to the schedule.

   source: Hermosa Beach · Local Coastal Plan

3. Question 3

   Use the optional preliminary planning review?

   Submittals are routed to several divisions concurrently; a planning-only first round can surface design issues before full drawings.

   source: Hermosa Beach · Application & Submittal Process

• How local and Commission coastal review differ →
• Place agency steps in the phases →
• Temporary works as their own line →

• Coastal permit preparation on lots inside the Coastal Zone
• Coordinated responses to Planning, Building and Public Works comments
• Demolition, hauling and staging on small, dense lots

These items affect cost; none is a price. See how to build a realistic budget: Custom home budget guide

• Comparing square-foot figures
• Asking for grading, utilities and walls as separate lines
• Open the budget worksheet
• Base dates and escalation for a later start

• Is the lot inside the Coastal Zone boundary?
• Is a Preliminary Planning Review worth doing before full submittal?
• Which LA County Fire submittals apply to the new house?

• Address or APN and recent site photos
• Survey, title report and prior permits if available
• Architect drawings, or a written list of rooms and priorities
• Target timing and how you plan to finance construction

Related guides: Buying land to build · Lot utility due diligence · Choosing a custom-home builder · 2025 Energy Code for new homes · Coastal-zone new-home planning

Each source shows what it covers and whether its passage was checked in our review.

• Hermosa Beach · Local Coastal Plan

  Coastal Zone extent and Land Use Plan status.

  Applies to a specific area, zone or overlay · Passage checked October 13, 2026
• Hermosa Beach · Application & Submittal Process

  Submittal and review process.

  City-wide guidance · Confirm the current content directly with the agency
• Hermosa Beach · Applications, Forms, Maps & Handouts

  Planning and building forms in one place.

  Lookup tool or portal · Confirm the current content directly with the agency

1 of 3 official source passages checked (latest October 13, 2026); 2 could not be opened and should be confirmed with the agency.

Page content last updated: October 11, 2026

All local planning resources