Is it worth extending the lease if you already own a share of the freehold on the property? A friend is planning to sell a flat and I believe there are 70 yrs left on the lease. She has enquired about extending the lease which will cost circa £400. Do you think its worth extending it before selling? Is 70yrs left sufficient considering the flat would own a share of the freehold and the next buyer can easily extend the lease themselves? Would not extending the lease significantly affect the selling price?