---
title: "Expansion option — Class A Atlas glossary"
description: "Tenant's contractual right to lease additional contiguous space."
canonical: https://classa.info/glossary/expansion-option
pageType: glossary
lastUpdated: 2026-04-01T00:00:00.000Z
license: "CC BY 4.0 with attribution to Class A Atlas (https://classa.info)."
---

> Tenant's contractual right to lease additional contiguous space.

## TL;DR

- Tenant's contractual right to lease additional contiguous space.
- Expansion options range from a soft right of first offer (ROFO) to a hard expansion right with a fixed price and timeline.

# Expansion option

*Leasing · Global*

## Short definition

Tenant's contractual right to lease additional contiguous space.

## Full definition

[Expansion](/topics/cross-border-expansion) options range from a soft right of first offer (ROFO) to a hard [expansion right](/glossary/expansion-right) with a fixed price and timeline. Hard rights are the most valuable to growing tenants and the most expensive to landlords — negotiate them in the LOI, not the lease.

## Why this matters for Class A leasing

Expansion option is part of the leasing vocabulary that institutional [Class A](/glossary/class-a) occupiers, landlords, and advisers use across Global markets. Understanding it correctly affects how you read lease documents, model occupancy economics, and benchmark deal terms across cities. Class A Atlas tracks regional variation alongside the global standard so cross-border occupiers can translate quickly.

## See also

- [Right of first refusal (ROFR)](/glossary/right-of-first-refusal)

## Related topics

- [**Class A Lease Negotiation**](/topics/class-a-lease-negotiation) — How to negotiate a Class A office lease — the playbook from LOI to signed deal.
- [**Hybrid Workplace Strategy**](/topics/hybrid-workplace-strategy) — How to size, structure, and lease a Class A office for a hybrid workforce.
- [**Lease vs Flex**](/topics/lease-vs-flex) — When premium flex (coworking, [managed office](/glossary/managed-office)) beats a conventional Class A lease — and vice versa.
- [**Lease Renewal Strategy**](/topics/lease-renewal-strategy) — How to negotiate a Class A [lease renewal](/topics/lease-renewal-strategy) — leverage, timing, and the relocate-vs-renew test.

---

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