With a new home I think it is better to wait until the spring before laying a new lawn.
Late March would be the best time after the majority of frosts.
The reasoning being, that new turf has fertiliser in it and grows quite quckly. You may not get too many opportunities to mow it in November.
The topsoil used may also have lots of weed seeds in it. If you leave the soil spread level, you can weed it as part of the preparation just before you lay the turf.
Finally, you have just moved into a new home, the last thing you need to be thinking about is the garden.
You will probably have loads of jobs inside to keep you occupied.