Seeing in a different light

On the table is a red and white checkered cloth. There is a distinctive teapot with three broad blue stripes on it. I can also see a pot of marmalade. Out of the window, behind the table, people lounge on the grass in a park.

Then I realise that there is another painting of the same tablecloth, and now I see that it covers the same table by the window.

The same window, the same balcony railings, the same street lamp, the same park. Using these clues, we gather together ten paintings and sketches of this room with a view. On the back of the largest painting, the size of half a door: "Norland Square". 

There's one picture with a view down the street and you can see from the railings that it's the same place.

I drive round Norland Square, London W11 on Google Street View until I see the houses I recognise from one of the paintings. The pictures are always so true to reality, there is no doubt it is the right spot.

I turn around, line up the street lamp and identify the window above the green door. Same frame, same railings. This is the house.