Hey all, just a word of warning! We bought a DWH new house August 2022. On the back of the dining area is what DWH call a 'pod', it's like a square walk-in bay. Very poor design, flat roof, no guttering. We now have water coming through the ceiling in the pod, and DWH do not want to know and suggest NHBC warranty won't cover it.
So it'll be down to us to pay roofers to come out regardless of the reason. God knows what it will cost if it all needs renewing.
It's likely to be that the canopy is cracked - over two years old so tough luck, or the mastic is perished which is apparently often the case. So tough luck.
Honestly, we only bought a new build to have some maintenance free years...