I pass a few such cafes on the way to work and they aren't even down backstreets.
https://www.google.com/maps/@51.5665302,-0.0212034,3a,75y,64.85h,83.86t/data=!3m7!1e1!3m5!1si37UR6-wjaB86BUpr7Vizg!2e0!6s%2F%2Fgeo2.ggpht.com%2Fcbk%3Fpanoid%3Di37UR6-wjaB86BUpr7Vizg%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D352.49362%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192 https://www.google.com/maps/@51.5599568,-0.0091264,3a,75y,31.69h,77.38t/data=!3m6!1e1!3m4!1spt-OhkBL8Q2aoL9US9UWSw!2e0!7i16384!8i8192