According to Canadian survey, the top three renovations that return the most on resale:
--Bathroom (100% return)
--Kitchen (75%-100% return)
--Interior and exterior painting (50%-100% return)

However, do keep in mind some buyers do prefer to customize their homes and looking for blank canvases to work with. The following are my top recommendation for other home improvement and likely return on investments:
--Replacing roof shingles (50%-80%)
--Replacing furnace and heating system (50%-80%)
--Renovating the basement (50%-75%)
--Adding a recreation room (50%-75%)
--Installing a fireplace (50%-75%)
--Upgrading floors (50%-75%)
--Building a garage (50%-75%)
--Replacing windows and doors (50%-75%)
--Building a deck (50%-75%)
--Installing Central Air Conditioning (25%-75%)

This is just general guideline and it all depends on your budget and timeline.