8.12.1. Not to install or change any locks in the Premises and not to procure the cutting of additional keys for the locks previously installed without the Landlord’s prior written consent, such consent not to be unreasonably withheld.

8.12.2. If, in breach of this Agreement, any additional keys are made the Tenant shall provide these to the Landlord together with all remaining original keys at the expiration or sooner termination of the Tenancy and in the event that any keys have been lost, pay to the Agent such charges as set out in the Agent’s published scale of fees.

8.12.3. If any lock is installed or changed in the Premises without the Landlord’s prior written consent, then to remove that lock if required by the Landlord and to make good any resulting damage.

8.12.4. Where due to any act or default by the Tenant it is reasonable for the Landlord to replace or change the locks in the Premises, the Tenant shall indemnify the Landlord for any reasonable costs that may be incurred.

Intention of the Clause:
The primary purpose of this clause is to ensure the security of the property by outlining the tenant's responsibilities regarding locks and keys.

Why It's Important:
Security is a paramount concern for both landlords and tenants. This clause ensures that the property remains secure while also providing the landlord with necessary access. It protects the landlord from potential liabilities and the tenant from potential security risks.