Weight / Fat loss

So I was a fairly chubby 86 kg/5'11''/22% body fat about 5 weeks ago. Struggling to get any weight off me I decided to start lifting weights to see if I could affect my BF%. My posture has improved, I'm stronger and getting more flexible. By eye my body fat has stayed about the same (my gf has even suggested that it has fallen a little). All good. To allow my body time to rest I have cut back on my cardio. My weight has shot up to 91kg though.

Now I have definitely put on muscle but 1kg per week seems a lot even for newby gains. Is this possible of am I kidding myself over about body fat staying the same?

Sounds like you're doing the right thing, keep it up. I''d throw a little cardio in there, either on lifting rest days or maybe a 1 or 2 km warm up before lifting.