BMAC81

Hi, I've just sold my house, it was valued at £210,000 but has sat on the market for a year so I've accepted a lesser offer. Can I use the sale price rather than value as the house has been on the market with no interest and I do y know the purchaser so it's "arms length"? Also I have paid money for a new kitchen, windows, building a garage and outbuilding. Are these deductible as capital expenses?