Tiny house in the garden

Hello We are looking for a skilled architect who will help us to design a tiny house in our garden. We have done a provisional project in a "Sweet home 3D" but we need professional input. The house will be most probably in the "L" shape with measurements starting from the east clockwise: 6,5m x 3,5m x 3m x 6,5m x 3,5m x 10m. Good knowledge of an English building law would be useful. Rest of the details: Use space as creative as possible. The open space (6,5m x 3,5m x 3m x 1,5m x 3,5m x 5m) contains walk-in area, kitchen dining area, working area, resting area and a ladder to the bedroom. Kitchen: maximum use in minimum space, intelligent droves, cabinets, and shelves. All along the wall or in the corner. free standing fridge-freezer build-in washing machine build-in/free standing dishwasher induction cooktop oven sink cooker hood worktop bottom and top cabinets folding table in the middle of the dining area or the folding wall table (to safe space to be able to do other activities like exercises) A large window looks into the kitchen/dining area. A sofabed, projector, screen under the ceiling. Working area with a large desktop for 2 people. Plenty of shelves, workbench with 2 PC and 4x monitors. Some kind of the barrier between desktop and a walk-in part. Large book cabinet. Bathroom (something like 2m x 2m): shower, sink, toilet, some small cabinet, window, sliding door Dressing room (something like 1,75m x 2m): Large wardrobe and mirror, sliding door Bedroom upstairs just for sleep. Mattress. Some lamps and little shelves. roof window some kind of a smart ladder to the bedroom. Storeroom (something like 3,5m x 1,75m). A bike shed (3,5m x 1,25m) for 6 bikes. Best Regards Sabina Wieczorek