The Puerto del sol is between c,dor and Cala egos on one side above the marina, there are not any other complex's close to it.
On the egos side there is Marina dor 1 and marina dor 2 that are privately owned apartments and town house's that are rented out on the owners abroad site by many owners, both of these are a 5 min walk away. On the C,dor side the nearest complex is Sa Marina and this is a ten min walk or from both options the small train passes by on the hour. The sa marina is in the hotel reviews and is a really nice place even though it is on the outer part of town it is still quite easy to get to the beaches and the main bars and resturants. It is only 2 years old and has very good reports from visitors in the past. A taxi rank is right outside and charges €4.5 for anywhere in c.dor or c.egosor €7 after midnight The nearest hotel is the Cala D'or hotel but i have not been in it so can't comment except that is across the road from the sa marina. good luck in your search, i am there on friday so if you require any other info just post and i will try to help.