Buying beachfront in Malibu is not like buying any other home. The sand, the seawall and even the line between public and private land are governed by the California Coastal Act, the City of Malibu's Local Coastal Program and decades of permit history. Those rules can change what a property is worth and what you can do with it.
Here is what I walk buyers through before they commit to a beach house in Malibu.
Key takeaways
The beach below the mean high tide line is public. That line moves with the seasons and the shoreline.
Many beachfront parcels carry recorded public access easements or offers to dedicate access from past permits.
New development is generally expected to be safe without a seawall, and recent permits often require owners to waive future armoring rights.
Malibu's stringline rule limits how far seaward a new home or deck can extend.
Public vs. private sand
California holds the tidelands in trust for the public. Everything below the mean high tide line is open to everyone, and the Coastal Act protects the public's right to reach it. The mean high tide line is not fixed. It moves as the beach gains or loses sand, so the private portion of a lot can shrink in an eroding year.
Many Malibu beach homes also carry recorded lateral access easements, often required as a condition of an earlier permit. These easements can open part of the dry sand to the public. Your title report and the property's permit file are where you find them.
Seawalls, revetments and the "existing structure" question
The Coastal Act allows shoreline protection such as seawalls in limited cases, mainly to protect existing structures, public beaches and coastal-dependent uses when they are in danger. The Coastal Commission has generally read "existing" to mean structures that predate the Coastal Act, which took effect in 1977.
For new homes and major rebuilds, the direction is clear. Development is expected to be sited and designed to be safe from coastal hazards without new armoring, and permits now commonly require the owner to record a deed restriction waiving any right to future shoreline protection. That affects value. A house that relies on an old seawall may face limits when it is replaced.
Broad Beach shows how complicated this can get. After storms in 2010, owners there built a long rock revetment, and in 2015 the Coastal Commission approved a sand-replenishment project funded through a Geologic Hazard Abatement District. The Commission continues to enforce against unpermitted work on the beach.
The stringline rule
Malibu applies a stringline to beachfront development. In simple terms, a new home or deck can't extend seaward of a line drawn between the nearest corners of the neighboring structures. Some projects ask for a stringline modification, but you should not assume one will be approved. If you plan to expand toward the water, test the idea with an architect before you remove contingencies.
Flood zones and coastal hazard reports
Most beachfront parcels are in FEMA coastal high-hazard zones, which affects flood insurance and construction standards. Rebuilds and major remodels usually need a coastal engineering report, a wave uprush study and a look at future sea level rise. These reports shape foundation design, often requiring caissons or piles, and they add time and cost.
Septic on the sand
Beachfront homes in Malibu typically use onsite wastewater systems, and many need advanced treatment systems. The city requires a valid operating permit at the point of sale. A failed inspection on a beach lot can be expensive to fix because space is tight and setbacks are strict.
Beachfront due-diligence checklist
Preliminary title report with every recorded easement, offer to dedicate and deed restriction
Full permit history from the City of Malibu and, where relevant, the Coastal Commission
Permit status of any seawall, bulkhead, revetment or stairs
Survey showing the property line and the most recent mean high tide line data available
Coastal hazard or wave uprush report, if one exists
OWTS operating permit status and inspection report
FEMA flood zone, elevation certificate and flood insurance quote
Any Geologic Hazard Abatement District assessments
Frequently asked questions
Can I build a new seawall in Malibu?
For new development, it is very unlikely. Coastal policy expects new homes to be safe without armoring. Seawalls are mainly allowed to protect structures that predate the Coastal Act, and even then a permit is required.
Can the public walk on the beach in front of my house?
Yes, below the mean high tide line. If your parcel has a recorded lateral access easement, the public may also use part of the dry sand.
Does the Coastal Commission approve Malibu permits?
The City of Malibu issues most Coastal Development Permits under its certified Local Coastal Program. Many beachfront decisions can be appealed to the Coastal Commission.
Is beachfront in Malibu a good investment?
Supply is fixed and demand is global, but erosion, permits and insurance are real risks. Value depends on the specific lot, its protection and its permit history.
Before you buy on the sand
A beachfront purchase deserves a longer due-diligence period and a team that knows the permit history. Start with my Malibu neighborhoods guide and my look at Malibu Colony real estate. Then call or text me at 310.480.0288, email alex@flynnla.com, or send a note.
General information only, current as of November 2026. Not legal advice. Coastal rules are site-specific; confirm with the City of Malibu, the California Coastal Commission and a coastal attorney or engineer.
