Budding property developers should remember to choose simple and classic designs when upgrading the fixtures and fittings in a home, an expert has warned.Offering a number of top tips for those keen on trying their hand at property development, property expert Sarah Beeny tells Channel 4 Homes that keeping things simple is likely to bring a number of benefits.In the kitchen, sticking to classic lines and clean shapes may help developers to appeal to a wider potential market.Fitting undermount kitchen sinks so that worktops remain unbroken may be one option available to individuals updating a property before putting it up for sale.But it is not only those who are looking to renovate a property before selling it on that can benefit from such lines in the kitchen.The Sunday Times recently reported on a growing trend to save space in the kitchen. One designer, Mark Holloway from Holloways of Ludlow, has even created a so-called hidden sink, in order to offer more work surface.