Can you place this house?

This photo is on a postcard postmarked 1910. I've been trying to place the house. Scanning maps, particularly the detailed 1895 Town Plan, I've considered the following elements:

• Detached, not set far back from the road.
• Flat front (noy bays) with steps at the centre.
• Looks like a bay on the left hand side.
• Conservatory on the right hand side.
• There's a barely decipherable house number, possibly 126, and a name that is probably "Westlake House."

I thought at first it might be on Tollington between Stroud Green & Hornsey Roads. I also looked to the south and south east of the Finsbury Park park. So far I've been unable to match it.

Of course, just because it was posted in Finsbury Park, doesn't necessarily mean the photo was taken nearby, but it probably was. 

Any ideas?