A nice refurnished apartment in the middle of the lively area of Alfama. Very close to the trainstation Santa Apalonia, 5 minute walk.
A congierge service will let you in.
The building is still under construction, that might give a bit noise. But that is going on in many areas in Lissabon.
Nightlife starts right in the street. With our family it had two sides: noise at night and on the other hand freedom for us to enjoy fado while the kids were sleeping.