Hi All, I am about to start the process of extending the lease on my flat (currently at 73 years). I am not sure whether to go down ther formal or informal route yet. Is there a difference in cost? If the cost is the same I think the formal route would be best as I get a longer lease and peppercorn ground rent. I don't have the valuation to extend the lease yet but I have made an inital enquiry and the Freeholder/landlord has recoommended extending to 99 years with a £250 a year ground rent. Is £250 a reasonable and standard ground rent for a converted 1 bed flat in Brighton? I have heard conflicting opinions from local extate agents. Some say £150 is more accurate. Any advice on the formal or informal route costs and ground rent would be very welcome. The Lease advisory service were a bit vague. Thanks Jay