Helmsley Group has sold part of its The Old Fire Station development in York to Standard Life Trustees Limited.

The company sold the ground and mezzanine floors of the office element of the mixed-use development, which are occupied by growing patent and trademark attorneys Secerna, at a guide price of £1.1m on a 999-year lease.

Jonathan Wade of Wade Property Consultants acted for Helmsley and London Ebor on the sale. Richard Dunn of Sanderson Weatherall was agent for Standard Life.