noun
whole-house rental; cottage rental
Refers to renting an entire building (often a house or cottage) rather than a room within it. Common in travel and accommodation contexts.
夏休みに一棟貸しのコテージを予約した。
I booked a whole cottage rental for summer vacation.
この旅館は一棟貸しもやっています。
This inn also offers whole-building rentals.
民泊 is a broader term for private lodging, often in a room of someone's home, whereas 一棟貸し means the whole building is rented exclusively.
Compound of 一棟 (one building) and 貸し (rental, from 貸す). The term is straightforward and modern, with no obscure historical derivation.