The purpose of an assignment of lease is to transfer your leasehold interest and tenancy rights from yourself to another party, enabling the new tenant to assume all obligations and rights under the current lease. This process legally releases you from further responsibilities for the property under that lease.
If you’d like to understand how to assign a lease to someone else, you can find careful guidance on the process here.
Unlocking Flexibility Through Lease Assignment
Assigning a lease allows tenants to adapt to changing circumstances such as relocating a business, downsizing, or exiting a property early without breaching the lease. By assigning the lease, tenants hand over their interests to a new occupant who takes on the lease’s terms until it expires.
Unlike subletting, which keeps you responsible for the lease, assignment transfers all responsibility to the new tenant. This means rent payments, property maintenance, and compliance with lease covenants become their duty.
The Process and Its Importance
Before proceeding, it is vital to review your lease agreement to establish whether assignment is allowed and what conditions apply. Most leases require landlord consent, which landlords cannot unreasonably withhold where the proposed assignee meets reasonable requirements.
You’ll usually need to:
- Obtain landlord approval.
- Find a suitable assignee capable of fulfilling lease obligations.
- Execute a legal deed of assignment documenting the transfer of rights.
Completing these steps properly protects all parties and ensures a legally valid assignment. It also helps avoid future disputes and unknown liabilities.

Commercial Advantages of Assignment
Lease assignments can help businesses manage operational changes cost-effectively. For example, relocating companies may assign leases on unwanted premises rather than paying penalties for early termination. Similarly, investors or property managers may facilitate the assignment process to maximize lease value.
How We Support Your Lease Assignment Needs
Our experienced team has guided many clients through the complexities of lease assignments, securing landlord consents, drafting precise legal documents, and protecting client interests at every stage. Whether you’re a tenant or landlord, we can provide tailored advice to make your lease assignment straightforward and efficient.
Frequently Asked Questions
Can I assign my lease without landlord permission?
Most leases require prior written landlord consent for assignment. Ignoring this can invalidate the assignment and leave you liable for obligations.
How is assignment different from subletting?
Assignment transfers your entire leasehold interest to a new tenant. Subletting lets someone else occupy the premises temporarily but keeps you responsible under the lease.
What happens if the new tenant fails to pay rent?
Once assigned, the new tenant is responsible. However, leases sometimes require an Authorised Guarantee Agreement, meaning the original tenant may remain liable for certain obligations.
Do I need a solicitor for assignment?
While not obligatory, legal guidance helps navigate complex lease terms, landlord negotiations, and ensures the assignment deed is properly executed.