OKay the big thing to remember is that all those expensive baths and taps are what bumps the costs up!
We've redone our bathroom and kitchen recently and here's our budget:
Kitchen:
Units - Ikea £1,000.
Cooker - Screwfix £250.
Cooker hood - ebay £100.
Floor - laminate from local carpet place in the sale at £3.99/sq m
new window - £400
Replaster ceiling - £100
replaster walls -£250
paint walls -£50
lights - £50
fridge and freezer - argos £350 the pair
All fitting done by DH, me and DBiL
Bathroom
Bath (steel) and taps and shower (edwardian deisgn chrome mixer with ceramic detialing)- £600 online store
Sink and toilet, - old ones from perviuos suite bought in B&Q for £100
Floor - stone look tiles £100
Wall tiles - £200
LIghting _ halogen spot lights from B&Q £50
and a chandelier picked up second hand and rewired £25
paint £50
taking out of old bath and fitting in new bath and replacing floor joist £400
two new windows £600
people think they NEED expensive baths/cookers/limestone flooring/£1,000 taps etc.
Property developers know that you spend the minimum you need to to get the job done.
We're developing this house for sale, sure we could have bought hideously expensive units from smallbone of denvies and paid £%k to have someone fit the dammed thing but there's no way we would recoup the cost.
Best tips:
online - search around there's lots of cheaper options
Buy your big things as basics - ie plain beech units, plain white sanitary wear
splash out (if you must) on smaller individual touches, ie a set of lovely dark wood 'display shelves' or a heated towel rail in the bathroom.
Set a budget of 5% of the overall selling price/value of the house for each room.
Learn to do things yourself but recognise when you need to get a professional in
DON'T buy expensive paint or wallpaper
Good luck