The whole area of Erstavik are private roads. The owners do not allow to pass.
I have marked the gates. Some of them are open, but have a "private" sign.

Road is blocked due to construction

via StreetComplete 49.0

Attached photo(s):
https://westnordost.de/p/121311.jpg

Unable to answer "What’s the surface here?" for osm.org/way/674486497 via StreetComplete 53.2:

stone steps

Unable to answer "Does this pedestrian crossing have an island?" for osm.org/node/7425627342 via StreetComplete 48.0:

Not a pedestrian crossing

Newly built apartment buildings here.

via StreetComplete 45.0

There are some unmapped buildings here.

via StreetComplete 45.0

Unable to answer "What surface does this piece of road have?" for osm.org/way/956163046 via StreetComplete 45.0:

The road seems to have been removed.

This road seems to not exist anymore.

via StreetComplete 45.0

From Älsvjöbadet bus stop is about 10min walk to Örby hundgård park.