The California sublease agreement is a legal document that binds the current tenant of a rental property (the "sublessor") to a new tenant (the "sublessee") California law requires tenants to seek explicit, written permission from their landlords to sublet if it is not already allowed in the lease.Contact your landlord to request pre-approval for subletting. Subletting a rental is permitted in California if the landlord doesn't expressly prohibit it in the lease agreement. Here is a sample sublease agreement you can fill out or use as a template. You can, but it's not a good idea. Most leases prohibit subletting, or only allow it with permission. As per California law, leases can indeed require tenants to obtain permission from their landlords before subletting the rental property. Next, provide relevant property details such as address and type. Subleasing is legal in California unless prohibited or limited in your lease agreement.