If your agreement doesn't say anything about subletting You don't need your landlord's permission but it's usually best to let them know. If they don't want you to sublet your home, your landlord can get a court order to end your tenancy, evict your subtenant and stop you from moving back in.
A lease is a rental contract between a landlord and a tenant, whereas a sublease is a contract between a tenant and a sub-tenant who has assumed obligations of the tenant's lease.
So first, in NYC a landlord cannot unreasonably deny a request to sublet. You must submit a written request at least 30 days in advance, and it must include things like who you'll be subletting to, why you're wanting to sublet, where you'll be during this period, etc...
If you sublet your home when you're not allowed to, your landlord is likely to take action to evict you.
A potentially devastating detriment to a sublease is its subject to the original tenant not defaulting. You could be compliant with your sublease and receive notice your lease is terminated because the original tenant defaulted. You could be subject to the landlord's new terms or be forced to vacate.
Landlords restrict subletting because they want control of who's in their properties. You wanna sublet so you can get out of a lease, so your standards are somewhat reduced. You might not care about security of the place, you might not care about the subletters background, he has a lease with you not the landlord.
Under California law, unless the lease specifically prohibits subletting, tenants may have the right to sublease their rental unit. In this case, you would not be able to unreasonably withhold consent.
If your agreement doesn't say anything about subletting You don't need your landlord's permission but it's usually best to let them know. If they don't want you to sublet your home, your landlord can get a court order to end your tenancy, evict your subtenant and stop you from moving back in.