The general rule for all rental units is that except as provided by law, the tenant must not make any repairs or alterations to the premises without the prior written consent of the landlord and the homeowners association, if there is one. 

Repairs and alterations include but are not limited to painting, wallpapering, demolition, carpentry, installation of fixtures, or any other changes to the premises. 

If a landlord does provide consent to repairs or alterations taken on by the tenant, those repairs or alterations must conform to a professional standard of quality. It’s also important for tenants to understand that any repairs or alterations they perform (or cause to be performed) will become the property of the landlord, and the tenant shall not be entitled to any compensation for the repairs or alterations.

Keys, Locks, And Security Systems

Regarding keys and locks, the tenant can not alter or install any locks to the premises without the prior written approval of the landlord. The same is true for a security system. If the tenant does receive permission to install new locks or a security system a copy of the keys and instructions for disarming a security system must be provided to the landlord.