Homeowners unable to move house a result of the economic downturn may opt to invest in DIY home improvements instead.Spending money on current property is seen as an investment, according to Zachary Design.The interior design consultant says people are also looking to buy long-lasting, high quality fittings for the kitchen and bathroom.More people could be planning to install new kitchen sinks and sink accessories designed to last.Stefan Zachary, founder of Zachary Design, said Everybody wants a good quality of life.With the quality of fittings in the house in kitchens and bathrooms, peoples aspirations for those parts of the building are now much higher.DIY home improvements are investments that homeowners will get a return on, he added.According to Idealo.co.uk, the property market slump has also inspired more DIY home renovation projects.The comparison site says the boost in DIY is due to falling house prices, with the average home now worth at least 10,000 less than in February 2008.