Geothermal Icelandic Sunken Lava Tub Glass Dome Micro-Villa STR Underwriting Calculator 2026

Underwrite private natural mineral geothermal hot springs geodesic glass domes with sunken black basalt stone soaking pools, heated floors, $980/night ADR, and annual net cash flows.

Underwriting Assumptions

Average Daily Rate (ADR $)

Annual Paid Occupancy (%)

Turnkey Basalt Dome & Hot Tub Capex ($)

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

Projected Economics

Gross Annual STR Revenue

Net Annual Operating Cash Flow

Unlevered Cash-on-Cost Cap Rate