I have had time to go and have another look, so here's an update.
There IS a gate on the west side of the street of steps. It is just to the rear of the house at the top. It leads immediately to a very steep, very tall flight of stairs into the rear of the house. It is also access to the rear garden.
The gate is metal, securely locked, and about a metre high. The garden walls of the property are a bit higher.
So that one is a climb over wall job, unless the property doors or gate were open in 2007.
On an alleyway between the properties on the east side. I had a good look and could not see one from the street of steps. If one exists, it starts further east.
What was particularly curious is that roughly opposite the house gate mentioned above, there is a garage door. It is attached to the house to the rear of Fernando's.
It is clear that one cannot get a vehicle up to 25 de Abril, or down to Salgeidas or Calheta. I am working on the assumption that way back in the day, traffic was allowed here. The plaza in front of Fernando's and Kelly's looks like Salgeidas ran immediately in front of both.
However, that change seems to precede Smithman by years.
That brings us to lighting. Bear in mind my view is Aug 2015, not 2007.
First, I could see up and down the street with no trouble at all, and I am no spring chicken. Second, the light at the north is 25 de Abril, and that does not cast a lot of light here. Third, there is a light on the junction with Salgeidas, plus two white lights outside Fernando's. Due to trees (Salgeidas and Fernando's) these are fairly blocked off now, but as to 2007...
Finally, I was peering over walls, inspecting garage doors, looking at how gates are secured. People came and people went. They were on holiday. No one said anything to me or appeared to take any notice of me.