Geothermal Icelandic Sunken Basalt Plunge Chalet STR Underwriting Calculator 2026

Underwrite private natural mineral geothermal hot springs micro-chalets with sunken black basalt stone soaking cold plunges and heated hot springs mineral tubs, $995/night ADR, and annual net cash flows.

Underwriting Assumptions

Average Daily Rate (ADR $)

Annual Paid Occupancy (%)

Turnkey Basalt Glass Chalet Capex ($)

Geothermal Water Maintenance, Linen & Ins ($/yr)

Projected Economics

Gross Annual STR Revenue

Net Annual Operating Cash Flow

Unlevered Cash-on-Cost Cap Rate