Fully agree SpringtimeBunny but it is far better to slag off newbuilds because "everybody knows they are rubbish" rather than actually accept that as with everything in this world, there are good, bad, indifferent and excellent ones out there but hey, let's just tar them with the same brush.🙁
Our development releases houses individually or in groups of 2-3 with build time being about 12-months so when you reserve there is plenty of opportunity to watch your house being constructed and no, they are certainly not "thrown up".
Agree about the asking price, they are very unlikely to haggle on that and much more likely to include some extras such as flooring, turf, appliances, kitchen or bathroom upgrades etc.
As others have said, it is easy to get carried away with the extras list so the way we did it was to have done what would cause the most disruption later on (extra sockets, lights, ethernet & TV points, bathroom & kitchen upgrades) and then things that we would want as soon as we moved in (flooring, additional bathroom tiling, fitted wardrobes etc). Everything else, we would get done afterwards.
Agree about window coverings, they can take a huge chunk out of your budget. We spent upwards of £10k on blinds, curtains (Inc poles), shutters etc which is a significant chunk of money whichever way you look at it.😲
Even the aforementioned coat hooks. We have a decent amount of downstairs cupboard space for coats (and shoes) but getting hooks for each location was another task to be added to the "to do" list. Likewise the bathroom and bedroom doors, it is nice to have a decent hook on each one.