Thanks everybody. The only difference between us & neighbours is that we have side access to the garden & a conservatory (they don't have either). They went on 5K cheaper.
I didn't realise a black kitchen would put so many people off. We had no plans to sell when we chose it.
I also didn't realise that people wouldn't view a house if they didn't like the décor. I've always looked at a house for the area/potential rather than cosmetics (we once bought a house with a chocolate bathroom suite!)
We went with purple bricks as houses seem to be flying off the shelf so to speak round here & the guy seemed really good. I have considered appointing local EA as well but DH says no at the moment as early days. To be honest, if people are put off by the kitchen or garden, no EA is going to get them to buy.
We only made the decision a couple of weeks ago to sell but now the decision is made, I want to get on with it...