To dream of a house being painted indicates that information which has been kept from you will soon be forthcoming; if you dreamed of painting anything (like furniture, woodwork, etc.), it suggests that you are contemplating some activity which you would prefer to keep secret—think it over well before you commit yourself.
A dream of artist’s paint signifies important changes if it was watercolors.
To dream of lacquer, gilt, or shellac predicts a passionate new love affair.
See also Deo orate.... The Complete Guide to Interpreting Your Dreams