GRAMMAR DETAIL

〜を前提に

on the assumption of · premised on

Indicates planning or acting on the assumption that the preceding condition will hold.

Examples

長期滞在を前提に、部屋を探している。

I am looking for a room on the assumption that I will stay for an extended period.

週末の利用を前提に、予定を立てた。

We made plans on the assumption that it would be used on weekends.

Structure: を前提に after a condition noun expresses planning or acting on the assumption that the condition holds.
Basic usage: 長期滞在を前提に、部屋を探している。 describes looking for a room suited to an assumed extended stay.

A planning premise versus an established event
- 週末の利用を前提に予定を立てた makes weekend use a basis for planning. It does not report that the weekend use actually took place.
A consideration versus an assumed condition
- 長期滞在を念頭に置いて keeps an extended stay in mind, whereas 長期滞在を前提に proceeds on the assumption that it will happen. A premise provides a stronger basis than merely entertaining one consideration among several.