There isn’t a set number of houses you should see before you decide. The internet and Google streetview provides excellent overviews of areas, streets – check the nearest scchool, restaurant, hosspital etc. When viewing in Spain, inspect as many as it takes to find the one you want. On average, homebuyers see 10 houses before choosing one. Just be sure to communicate often with your real estate agent about everything you’re looking for – even as this evolves during the viewing process. It will help avoid wasting your time, as will having a carefully compiled intinerary.