This type of office sublease exists with the landlord's consent, and it is critical that any sublease agreement is permissible under current lease terms. C. Pursuant to the terms of the Lease, Tenant must obtain the prior written consent of Landlord to any sublease of all or any portion of the Premises.What is a Commercial Sublease Agreement? If Subtenant shall take occupancy of the Sublease Premises for the conduct of Subtenant's business, Sublandlord's Work shall be deemed substantially completed. The procedure for subleasing is quite complicated. Subletting your office space or commercial property? Easily customize your own Commercial Sublease Agreement.