Hey Sophia, There are two ways to express this.

"there is a place in my house where it is full of sunshine",
or
"there is a place (that is full of sunshine) in my house".

My grammar knowledge is not expert level, but, breaking the sentence down a bit.
The basic sentence is "there is a place in my house" (no description). 

"that is full of sunshine" is a small adjectival clause (side note, or description).

Examples:

1. Have you heard about that new pizza place ?
2. Have you heard about the new place down the road where they sell pizza ?

I'm afraid this is not very clear .. but it may be the best I can do ^-^;

error better

sunshine!

Which weather do you like, sunshine, rain or snow?

I like the sunshine. I don't know if the weather affects your mood or not? But sometimes, my mood changes with the weather's change, for example: I am blue in on rainy days and I am happy on sunshine [sunny] days.

Notes:
"I don't know if the weather affects your mood or not?" is a question so should be.
"Does the weather affect your mood or not?"

or, as a leading statement,
"I don't know if the weather affects your mood or not, but sometimes, ...." (no "?")

I like the sunshine, especially in winter. It is so comfortable when the sun_shines in on your body, the feeling of warmth.

I have a dream, there is a place where that is full of sunshine in my house, there I can drink a cup of tea and read a book in the sunshine._Great feeling, right?

Good dream :)