I done this before in a previous property where the floor had been
laid for many years.

Having moved into a newer house, it's just a year old I wondered if
it's ok to paint the floor too.

I have read about using primers and such like but in the last house I
just used leyland floor paint and gave it two coats and it seemed to
stand the test of time pretty well.

Is there anything else I should look at doing prior to painting.

Thanks