Property-level coastal hazard exposure and buyout-leaseback economic valuation outputs for five California coastal communities (Managed Shores group project of Bren School)

This dataset contains property-level coastal hazard exposure and economic
valuation outputs from the Managed Shores buyout-leaseback modeling
framework, applied to five California coastal communities: Carpinteria,
Isla Vista, King Salmon, Pacifica, and Stinson Beach. Data were generated
by integrating USGS Coastal Storm Modeling System (CoSMoS) flood
inundation and cliff retreat projections with residential property records
to estimate optimal managed retreat timing and associated buyout costs
under multiple sea level rise scenarios. The dataset includes derived
hazard exposure timeseries (annual flood depth and cliff distance
estimates by property), economic valuation outputs (optimal retreat year
T*, buyout price, government net cost), and sensitivity analysis results
across three sea level rise scenarios (Intermediate, Intermediate-High,
High) and three government discount rates (2 %, 3 %, 4 %). All outputs are
property-level and anonymized to parcel centroids. Monte Carlo storm
simulation results are summarized as mean, median, and percentile
distributions across 1,000 iterations per property per scenario. These
data support research on proactive coastal managed retreat, climate
adaptation finance, and coastal hazard economics. They may be of interest
to coastal planners, municipal governments, researchers in environmental
economics or climate adaptation policy, and state agencies including the
California Coastal Commission.