Raising rent question

[Dustin Trimble]

Question for active landlords doing God’s work out there!

Current tenants are on a month to month for a 2bd/1bth duplex unit. Tenants signed a 6month lease with a verbal understanding that a 20’x10’ covered deck (lanai) would be built and washer and dryer option added.  Fast forward 8 months and all stated work is completed and permits signed off by C&C.  

NOTE:  washer and dryer Hookups were provided only.  Tenants  were verbal notified  washer and dryer will not be provided by landlord at month 7 when asked.

Current rent is $2,000 (utilities not included).  My initial thought was 30 day notice of rent going up $300 now all work is complete.

Would appreciate any peer landlords opinions that have experience on raising rent?

Mahalo for your time!