# Expansion right

> Hard contractual right to lease specified additional space at a stated trigger date.

**Canonical URL:** https://classa.info/glossary/expansion-right
**Page type:** glossary
**Last updated:** 2026-04-01T00:00:00.000Z
**License:** CC BY 4.0 with attribution to Class A Atlas (https://classa.info).

## TL;DR
- Hard contractual right to lease specified additional space at a stated trigger date.
- A hard expansion right gives the tenant the contractual right to take additional space at one or more pre-defined trigger dates, at pre-agreed (or formula-driven) economics.

## Key facts
- **category**: Lease structure
- **regionScope**: Global

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Citation: Source: Class A Atlas (https://classa.info/glossary/expansion-right), updated 2026-04-01T00:00:00.000Z.