here is now a building, roughly along the circling line of the plot

#OsmAnd

here is a pathway through a building to the street

#OsmAnd

Unable to answer "Do these steps have a ramp? What kind?" – Steps – way/748713235 via StreetComplete 62.1:

This path does not exist. However, at theside of the building there is a ramp making it wheelchair accessible.

Unable to answer "What are the opening hours here?" – Chuveiro (Key Cutter) – node/5163281134 via StreetComplete 62.1:

There is just beach!

Edificio Panor Mico

via StreetComplete 62.1

Porta B

via StreetComplete 62.1

Porta A

via StreetComplete 62.1

These are actually 6 houses and not 4. From west the 2nd shows number 7, the 3rd the 3 (which looks a little odd to me.) For the others I did not find a number visible from the street.
The postboxes are all together. It could as well be that the building has only one number, which is just not shown, and the numbers above mean something else.

via StreetComplete 62.1

Unable to answer "What’s the surface here?" – Path – way/1359575478 via StreetComplete 62.1:

There is not really a crossing or way to the street. Just the usual sidewalk.

New building No. 11

via StreetComplete 62.1