overdecoration
She tends to overdecorate her home, her office or even herself.
You can easily overdecorate such a small room.
His home was overdecorated but rather cosy.
Don't over-decorate the garden with statues.
The cakes were not over-decorated and sugary.

SMART Vocabulary: related words and phrases

Decorating or making something attractive
accessorize
adorn
adornment
beautification
beautify
edged
embellishment
festoon
flock
foliated
non-utilitarian
ornament
ornamentation
ornate
over-glamorize
twiddly
undecorated
unembellished
window dressing
yarn bombing

You can also find related words, phrases, and synonyms in the topics:

Building: interior decoration