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Ramona · 92065

Zone 0 and brush clearance in Ramona

Both of the two largest fires in San Diego County history started in the country east of Ramona. If you own acreage here, defensible space is not new — but Zone 0 is, and it changes what the first five feet around your house and outbuildings have to look like. Here is what applies in Ramona and what the work involves on a large lot.

Which rule applies in Ramona

Ramona is unincorporated San Diego County in a State Responsibility Area, so the City of San Diego's February 28, 2027 date does not apply. The statewide Zone 0 regulation applies on the Board of Forestry's timeline, and Public Resources Code 4291 already requires 100 feet of defensible space, which CAL FIRE inspects.

JurisdictionUnincorporated San Diego County
RuleCalifornia statewide Zone 0 regulation (Board of Forestry timeline) plus Public Resources Code 4291: 100 feet of defensible space, inspected by CAL FIRE
DeadlineState Zone 0 timeline; the 100-foot defensible space requirement already applies and is inspected
Enforced byCAL FIRE / San Diego County Fire (Ramona is unincorporated, State Responsibility Area)
Confirm your zoneFire hazard zone lookup

Fire history

The 2003 Cedar Fire started in the Cleveland National Forest east of Ramona and became the largest fire in county history, burning 280,278 acres and destroying 2,820 buildings. Four years later, on October 21, 2007, the Witch Creek Fire started east of Ramona when Santa Ana winds pushed power lines together, and within a day it had spread through San Diego Country Estates, Ramona, Rancho Bernardo, Poway, and Escondido, burning 197,990 acres and destroying more than 1,100 homes.

Ramona sits at the junction of the backcountry and the suburbs, downwind of the mountains in a Santa Ana event. It is the first populated place a fire from the east reaches, which is why CAL FIRE's defensible space inspections here are not a formality.

The terrain, and what crews usually find

Ramona is a broad valley of grassland and oak surrounded by chaparral hills, with parcels that run from suburban lots in town to five, ten, and forty acres in San Diego Country Estates, Mount Woodson, the Highland Valley, and out toward Santa Ysabel. The vegetation is the real thing: chamise, scrub oak, sumac, and manzanita on the slopes, annual grass and coast live oak on the flats, with dead material building up in the years between fires.

On a Ramona parcel, Zone 0 is one part of a bigger job. The five feet around the house, the barn, the well house, the shop, and the guest unit all need to be ember-resistant; then Zone 1 and Zone 2 out to 100 feet from each of them need to be thinned; then the driveway needs to be passable for an engine. Most of that is tractor and mastication work, priced by the acre, with hand crews for the slopes.

Common Zone 0 findings on Ramona lots

  • Multiple structures — house, barn, shop, well house, guest unit — each needing its own five-foot zone
  • Woodpiles, hay, lumber, and equipment stored against structures
  • Propane tanks and fuel storage within five feet
  • Annual grass that needs mowing to 4 inches across the parcel or in the 100-foot zone
  • Chaparral slopes that need mastication or hand thinning, with root systems left for erosion control
  • Driveway clearance: 10 feet of horizontal and 13½ feet of vertical clearance for fire apparatus

What it costs in Ramona

Ramona work is priced by the acre. Tractor mowing of grassland runs $300–$800 per acre; brush clearing of moderate chaparral $2,000–$4,000 per acre; heavy chaparral on steep ground $4,000–$8,000 or more. Zone 0 around each structure is usually a small add-on to the larger job. Ask about the County's wildfire mitigation program, which has funded defensible space work on rural parcels. See the Zone 0 cost guide and the brush clearing cost guide for the full breakdown.

What to do

  1. Confirm your parcel on the 2025 fire hazard map.
  2. Walk the Zone 0 checklist and photograph everything.
  3. Clear what you can yourself: stored items, bins, litter, gutters.
  4. Request a free quote for the vegetation, hardscape, fence, and slope work. The state Zone 0 timeline applies; the 100-foot defensible space requirement is already in force.

Neighborhoods and areas covered

Neighborhoods

  • Ramona (town)
  • San Diego Country Estates
  • Mount Woodson
  • Highland Valley
  • Old Julian Highway corridor
  • Santa Maria Valley
  • Ballena
  • Rancho Santa Teresa

Open space and fire exposure

  • Cleveland National Forest
  • Mount Woodson and Iron Mountain
  • Barnett Ranch Preserve
  • Santa Ysabel Preserve
  • Ramona Grasslands Preserve

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