Estate agents claim most homes are not using the space to its full potential (Image: Getty) A usable loft can add nearly £18,000 to the value of a family home and make it easier to sell, according to estate agents. Research involving 500 property brokers found a boarded and easily accessible roof space adds £17,677 to a four-bedroom property, £13,821 to a three-bed, and £9,867 to a two-bed. With the property market firmly in buyers’ hands, sellers are under pressure to make their homes stand out with affordable ways to increase appeal and value. Nearly nine in 10 (88%) agents confirmed that the homeowners they represent are increasingly looking for cost-effective ways to add value without the expense of an extension or a full renovation. Experts said the answer could be right above their heads, providing a significant return on an investment for as little as £260, achieved through raised loft boarding and insulation work. It comes after research commissioned by LoftZone found that properly fixing up a loft was named the most overlooked method …