25 CFR § 162.314
May permanent improvements be made under a residential lease?
February 24, 2021
(a) The lessee may construct permanent improvements under a residential lease if the residential lease authorizes the construction and generally describes the type and location of the permanent improvements to be constructed during the lease term.
(b) The lessee must provide reasonable notice to the Indian landowners of the construction of any permanent improvements not generally described in the lease.