Every few months I meet a buyer who has already designed the house in their head. Second story, bigger deck, glass wall facing the water. Then they learn about the coastal development permit.

If you’re buying a coastal home in Orange County -Laguna Beach, Dana Point, Corona del Mar, Newport Beach or San Clemente- with a remodel in mind, the California Coastal Act may shape that plan more than your architect does. Here’s how it works, and what I have buyers check before the money goes hard.

The short version of the Coastal Act

The California Coastal Act of 1976 says that most development inside the state’s coastal zone needs a coastal development permit, or CDP. That’s on top of your normal building permit.

“Development” is defined broadly. New homes, additions, demolitions, grading, seawalls, and some changes in use can all count.

The coastal zone isn’t just the beachfront row. In parts of Orange County it reaches well inland, up hillsides and across canyons. Check the city’s coastal zone map for the exact parcel.

Who actually issues the permit

In many coastal OC cities, the city itself issues CDPs, not the Coastal Commission.

That’s because Laguna Beach, Dana Point and Newport Beach, among others, operate under certified Local Coastal Programs. An LCP is the city’s own coastal rulebook, approved by the Commission. The city applies it, and the Commission steps back. A little..

The Commission keeps direct permit authority over tidelands and certain beach areas. And in the “appealable area,” typically between the sea and the first public road, or within set distances of a beach or coastal bluff, a city’s decision can be appealed to the Commission.

That appeal is where timelines have historically gone sideways. A neighbor, an advocacy group, or two commissioners can file one. Until recently, there was no firm deadline for the Commission to decide.

A new law helps, starting in 2027

Governor Newsom signed SB 963 by Senator John Laird on July 16, 2026, and it takes effect January 1, 2027. According to Senator Laird’s office, the Commission must review additional information within 30 days and “hold a hearing and issue a final decision within 180 days after receiving all requested materials.”

That’s real progress. It is not speed. If your lot is in the appealable area, build six months or more of appeal risk into your plan, on top of design and city review.

Remodels: when a permit kicks in

Under the Coastal Commission’s regulations, improvements to an existing single-family home are often exempt from a CDP. That exemption has limits, and they bite hardest on exactly the properties coastal buyers want.

The exemption generally doesn’t apply to work within 50 feet of a coastal bluff edge. In areas between the sea and the first public road, or near a beach or bluff, it can also fall away for additions of 10% or more of floor area, or height increases over 10%.

Then there’s the replacement line. If a project replaces 50% or more of a home, the Commission’s rules treat it as a replacement structure, not a remodel. That can mean the house must meet today’s standards, including current bluff setbacks. On an older Laguna bluff-top home, that can shrink the buildable footprint.

Many local coastal programs add their own “major remodel” definitions, and some count changes cumulatively over time. So the prior owner’s 2019 kitchen-and-wall project can count against your future plans.

What I’d check before you remove contingencies

The standard California purchase agreement gives you 17 days for investigations by default. On a coastal property, I’d use every one of them for this:

• Is the parcel in the coastal zone, and is it in the appealable area? The city planning counter or its GIS maps will tell you.
• What’s the permit history? Pull the city’s building and planning files, including any past CDPs. Unpermitted work in the coastal zone can mean after-the-fact permits, or removal.
• What’s recorded against the property? CDP conditions may be recorded as deed restrictions and run with the land. They show up in your preliminary title report. Look for bluff setbacks, view corridors, landscaping conditions, and waivers of future shoreline protection on newer permits.
• What does an architect or land-use attorney say? Hiring a professional to review the property might be the best money you will spend in escrow.

Why this matters at today’s prices

Redfin puts Laguna Beach’s median sale price at about $3.3 million for the three months ending August, up 15.0% from a year ago. At that price, much of what you’re paying for is the view and the potential.

If the potential isn’t permittable, you’ve paid for something you can’t build.

Sometimes the right move is a smaller house on a lot with a clean permit path. Sometimes it’s paying a premium for a home that’s already done, because the permits already happened.

The rules aren’t a reason to avoid the coast. The simply require you to be more diligent and realistic in your understanding and planning decisions.

This is general information, not legal advice. While I try to stay educated for the sake of my clients, I am NOT an expert on individual land use options or the ever changing rules regarding applicable buildings laws. For your specific property, you must talk to a land-use attorney or architect who works in that city.

Thinking about buying on the coast? My Orange County Home Buyer’s Guide walks you through the process, including the due diligence that matters most on coastal property. Or call me and we’ll look at a specific address together.

Jaleesa Peluso | Berkshire Hathaway HomeServices California Properties

Phone: (949) 395-0960  |  Email: Jaleesa@jaleesapeluso.com

DRE #01935097