Housebling

There's even a word for that now, "housebling".

Source: wiktionary

Find out more about this amazing housebling at wonderlandchristmas.com.

Source: wiktionary

The facts are as follows: in recent years, Vic Moszczynski's "annual charity light display" involved 20,000 lights, covering his home, and supplemented with large illuminated snowmen and amplifiers emitting Christmas songs into the street. (The term "housebling" started appearing on the web in 2004 to describe just such gaudy displays.)

Source: wiktionary