Land for Sale in Lake County, CA

Lake County sits in the Coast Range north of Napa and is named for Clear Lake, the largest natural lake wholly inside California. It had 68,163 residents in the 2020 census across 1,329 square miles, and it has only two incorporated cities, Clearlake and Lakeport. Land here ranges from small old-subdivision lots around Clearlake to oak and chaparral hillside acreage. Two things decide most purchases: whether the lot can get septic or sewer, and how it fits the area's wildfire history.

Lake County at a glance

  • County seat: Lakeport. Incorporated cities: Clearlake (the largest) and Lakeport.
  • Unincorporated communities include Lucerne, Nice, Kelseyville, Cobb, Middletown, Upper Lake, Lower Lake, Clearlake Oaks and Hidden Valley Lake.
  • 2020 population 68,163; 1,329 square miles total, of which 73 square miles is water.
  • The Valley Fire of September 2015 burned 76,067 acres in the county and destroyed about 1,955 structures.
  • State Routes 20, 29, 53, 175 and 281 serve the county; part of the Mendocino National Forest lies inside it.

The Lake County land market

Lake County is one of the less expensive places in the California Coast Range to buy land, and that is why it appears so often in small-lot searches. Around Clearlake, Clearlake Oaks, Lucerne and Nice you will find many quarter-acre and smaller lots in old subdivisions, some within walking distance of the lake and some on steep hillsides with poor road access. Further out, around Kelseyville, Cobb, Middletown and Upper Lake, parcels run from a few acres to larger ranch and vineyard-type tracts. A lakefront or lake-view lot costs more than an interior one, and a flat lot on a paved county road costs more than a hillside lot on a dirt track. Size alone tells you little: a cheap lot that cannot get septic approval or legal access is worth much less than it looks.

Septic, sewer and old subdivisions

Many of the small lots around Clearlake were platted decades ago, before today's septic standards, and whether a given lot is buildable depends on soil, slope and sewer availability. One example of how local this can be: a 1976 order of the Central Valley Regional Water Quality Control Board added a prohibition on leach-field discharges in parts of Clearlake Highlands and Clearlake Park, because the soils there have very low percolation rates. I could not confirm whether that prohibition is still in force today, so treat it as a reason to ask, not as a current rule. Parts of that area are served by the Lake County Special Districts sewer system, which has had capacity limits, and the county has bought tax-defaulted lots in the area for sewer work.

Before you buy a vacant lot here, ask Lake County Environmental Health whether the parcel has a percolation test or an approved septic design, ask the sewer district whether the parcel can connect and what the connection costs, and read the preliminary title report for assessments. A listing that says "septic approved" is a seller claim until the county confirms it.

Wildfire history and insurance

The Valley Fire started on September 12, 2015, burned 76,067 acres in Lake County and destroyed about 1,955 structures (a later CapRadio update counted 1,958); four people died. Cal Fire investigators attributed it to a residential electrical connection that arced and ignited dry grass. It was described as the third most destructive fire in California history at the time. The county has had other large fires since, and much of the hillside land here is grass, chaparral and oak woodland that burns.

For a buyer this means three practical checks: get a homeowner or dwelling-fire insurance quote for the address before closing (some insurers do not write new policies in high-risk zones, and the California FAIR Plan is a last resort), look at the Cal Fire hazard severity zone for the parcel, and ask about defensible-space and road-width requirements for new construction. Burned lots from 2015 are still being sold, and a cleared burn-scar lot can be a good price if the title, utilities and slope are sound.

Before you buy land in Lake County

  • Septic: a percolation test or approved design from Lake County Environmental Health, or a confirmed sewer connection.
  • Legal access on a recorded easement or county-maintained road, and who maintains it in winter.
  • Fire hazard zone, insurance quote and defensible-space requirements.
  • Tax status and any assessments, including tax-defaulted parcels sold at auction.
  • Zoning and the minimum parcel size for a home or second unit.

How to verify legal access to landLand due diligence checklist

Frequently asked questions

Is it cheap to buy a lot near Clear Lake?

Lake County has some of the lowest prices in the California Coast Range, and many small lots are old-subdivision parcels. Price is not the whole story: confirm septic or sewer, legal access and wildfire insurance before you buy.

How big was the 2015 Valley Fire in Lake County?

It burned 76,067 acres and destroyed about 1,955 structures, according to the figures most sources use, and four people died. Cal Fire investigators attributed it to a faulty residential electrical connection.

Can I put a septic system on a small Clearlake lot?

It depends on the soil, slope and lot size. Some areas, including parts of Clearlake Highlands, had a regional water board prohibition on leach fields in 1976 because of poor soils. Ask Lake County Environmental Health about the specific parcel.

What is the county seat of Lake County, California?

Lakeport.

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