Granny Flat Solutions Home ›› Local Listings ›› NSW ›› Thornleigh ›› Granny Flat Solutions NSW Construction THORNLEIGH, NSW 2120 (02) 9481 7443Fax: (02) 9481 7442https://grannyflatsolutions.com.au Real estate is one field where prices are always rising and adding property value with a granny flat is an excellent investment with is sure to get a good return on investment. It provides with an additional space, an alternate room or a future investment.