What type of lease is automatically renewed unless notice is given?

The type of lease that is automatically renewed unless notice is given is a periodic tenancy. This lease arrangement typically involves a rental period that can be on a weekly, monthly, or yearly basis. At the end of each rental period, the lease renews automatically unless either the landlord or tenant provides notice of termination, usually within a specified time frame defined in the lease agreement. This characteristic of automatic renewal distinguishes periodic tenancies from other types of leases.

In contrast, an estate for years is a lease with a fixed duration that does not automatically renew upon expiration; it simply ends when the term is completed. A leasehold estate is a broader term encompassing various types of leases but does not specifically imply automatic renewal. A fixed lease isn't a standard term used in real estate; thus, it’s not applicable in this context. The periodic tenancy's unique feature of automatic renewal makes it the correct answer in this scenario.