The building was approved without planning departures, it tries to fit itself discretely into the fabric, it presents an ordinary face to the street, whilst opening out to the landscape at the rear, where its openness is hidden from the street. The language is gauged to achieve a certain anonymity without indulging in pastiche. The old and new walls are not distinguished from one another in material, they are all made of the same thing, in the same way, but openings within and between them ae made very differently The windows show what is old,( wooden sash), what is in between (existing horizontally modulated steel frames) and what is new (aluminium frames with opening corners or glass to glass junctions. Floors are in situ concrete, lined with timber internally and externally, and the roof is a folded plane, plasterboard internally, steel sheeting externally, wrapped by a parapet which is horizontal where it addresses the street, and dips away towards a giant steel scupper which talks about catching the rain, which is stored in a bank of tanks in the garage. The single existing circular widow is left in place as a remnant or a fragment of an arbitrary decision made in the past.