---
title: "Consent to sublet — Class A Atlas glossary"
description: "The landlord's required approval of a proposed sublease or assignment."
canonical: https://classa.info/glossary/consent-to-sublet
pageType: glossary
lastUpdated: 2026-04-01T00:00:00.000Z
license: "CC BY 4.0 with attribution to Class A Atlas (https://classa.info)."
---

> The landlord's required approval of a proposed sublease or assignment.

## TL;DR

- The landlord's required approval of a proposed sublease or assignment.
- Most institutional leases require landlord consent for sublease or assignment, with the landlord's consent 'not to be unreasonably withheld'.

# Consent to sublet

*Lease structure · Global*

## Short definition

The landlord's required approval of a proposed [sublease](/topics/sublease-strategy)">sublease or [assignment](/glossary/assignment).

## Full definition

Most institutional leases require landlord consent for sublease or assignment, with the landlord's consent 'not to be unreasonably withheld'. The reasonableness standard is fact-specific and frequently litigated. Negotiate the standard explicitly in the LOI.

## Why this matters for Class A leasing

Consent to sublet is part of the lease structure 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](/topics/cross-border-expansion) occupiers can translate quickly.

## See also

- [Sublease](/glossary/sublease)
- [Assignment](/glossary/assignment)
- [Recapture right](/glossary/recapture-right)

## Related guides

- [Subleases and assignments: when, how, and at what cost](/guides/subleases-and-assignments)

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