Flood zones for vacant land in Topanga
Of the 142 vacant lots in Topanga, 6 (4%) are in a FEMA high-risk flood zone, where a home loan on a new building needs flood insurance. 122 (86%) are in zone X with minimal risk. 14 are zone D, where flood risk has not been studied.
Flood zones in Topanga
| FEMA zone | Vacant lots | Share |
|---|---|---|
| X | 122 | 86% |
| D | 14 | 10% |
| AE | 4 | 3% |
| A | 2 | 1% |
What the letters mean: flood zones explained.
Lots in a high-risk flood zone in Topanga
Zones A, AE, AH, AO and VE, lowest assessed value first.
| Lot | Acres | Assessed | Zone |
|---|---|---|---|
| 1135 N Topanga Canyon Blvd4440-028-001 | 0.19 | $1,203 | AE |
| 869 Old Topanga Canyon Rd4438-023-004 | 0.65 | $31,408 | A |
| 1101 N Topanga Canyon Blvd4440-028-006 | 1.12 | $79,941 | AE |
| 859 Old Topanga Canyon Rd4438-023-003 | 0.52 | $196,340 | A |
| 1285 N Topanga Canyon Blvd4440-014-008 | 0.32 | $255,000 | AE |
| 1742 Happy Trail4440-002-018 | 0.09 | $1,061,207 | AE |
Lots outside the flood zone in Topanga
Zone X with minimal risk, lowest assessed value first (25 of 122).
Questions about land in Topanga
How much vacant land in Topanga is in a flood zone?
6 of 142 vacant lots in Topanga (4%) are in a FEMA high-risk flood zone (A, AE, AH, AO or VE). 122 are zone X with minimal risk. 14 are zone D, where flood risk has not been studied.
Do I need flood insurance for land in Topanga?
Not for an empty lot: flood insurance covers buildings. If you build in a high-risk zone and borrow from a federally regulated lender, flood insurance on the building is required. 4% of Topanga's vacant lots are in such a zone.
More for Topanga: all vacant land · fire hazard zones
Sources
Counts are LandGrab's analysis of 2026 public data for vacant parcels in Los Angeles County, updated 2026-10-19. Maps change; confirm a specific lot with the county before you buy.