New-build house prices can go up or down on a weekly basis. This depends on how desperate the sales director is for sales in any given week or month, how long finished homes have been for sale and any nationwide deals and promotions,
Even within the same development, the same house type and same specification, the price will vary due to location, size of garden, number of parking spaces and proximity ot other factors such as social housing, busy road and open spaces.
Finally every sales advisor has negotiables to offer to clinch a reservation.
So each plot has its price and each buyer will buy, if they are happy with the price they are offered.
Be aware it could be to do with a lack of demand as Persimmon has a dreadful reputation, confirmed by its own recently
published independent review report!