Decorate a home you own with at least [50 / 100 / 200 / 300 / 350] objects.
Grand Master Decorator and its preceding achievements are awarded for placing large numbers of items in your home. All items must be placed in the same home in order to qualify - splitting them between multiple homes will not work. Thus, you will need to acquire a larger home in order to fit all of these things. ESO Plus subscribers can complete the largest of these achievements with any Medium-sized home or larger, but for those without subscriptions, nothing short of a Manor will do, and only barely. Note that many (especially larger) homes come with a certain amount of decorations already installed, even if you get them unfurnished, and these items will count towards this total. If you do buy them pre-furnished in the Crown Store, any items already placed in the home will also count. Since homes are shared between characters on the same account, your other characters need only enter the home after you've fully decorated it to also receive the achievements. The minimum house sizes you need for these achievements are shown below:
Achievement
Size:
Inn
Apt.
Small
Med.
Large
Manor
Cap.:
15
50
100
200
300
350
Apprentice Decorator
50
No
Yes
Yes
Yes
Yes
Yes
Journeyman Decorator
100
No
No
Yes
Yes
Yes
Yes
Expert Decorator
200
No
No
No
Yes
Yes
Yes
Master Decorator
300
No
No
No
No
Yes
Yes
Grand Master Decorator
350
No
No
No
No
No
Yes
With ESO+
Achievement
Cap.:
30
100
200
400
600
700
Apprentice Decorator
50
No
Yes
Yes
Yes
Yes
Yes
Journeyman Decorator
100
No
Yes
Yes
Yes
Yes
Yes
Expert Decorator
200
No
No
Yes
Yes
Yes
Yes
Master Decorator
300
No
No
No
Yes
Yes
Yes
Grand Master Decorator
350
No
No
No
Yes
Yes
Yes
Since all homes come pre-furnished with at least some items, it is possible to earn some of these achievements merely by purchasing the home. The following chart shows which achievements will be earned when purchasing which houses. The background color indicates whether it's possible to earn the achievement at all in the house, while the symbol indicates whether it will be earned immediately upon purchasing it.
Not Possible
Possible with ESO+
Possible for all players
Yes = Achieved furnished or unfurnished _Maybe = Achieved if furnished No = Not achieved