These "Samurai Studios" have renter lockable doors. Also..you can see out, but others cannot see in. They are small studios, but very nice.
Located at 300 meters above the ground next to waterfall and stream.
They are 225L a week for 75 prims. More prims can be purchased if needed at reasonable rates.
I will adjust the door code to any magic word you desire. You may give it to as many people as you wish.
Also there are shops in a beautiful sim below these sky houses. low rents and discounts for a month or more.
See these Samurai Studios at: Nimnam 85, 76, 300