Posted: 18/05/2017 at 17:40
Don't want to disillusion you, but if you're having building work done, you'd have been better leaving the grass till after it's finished....
I'd agree with Dave though - you may have to repair the areas which haven't been firmed enough, it's too late to really alter that much, so filling in any dips later when it all settles would be the best way to go.
You can use seed for shade, and it often works reasonably well, but be prepared to work quite hard if you want it to look decent, and that might be difficult if you have dogs going on it. Whatever grass seed you use, use it on the whole garden, not just one area, so that it blends. It won't look right otherwise as you'll have different areas of 'green'.