Garden patio approx 5m x 3m and retaining wall - Landscape Gardening job in Birmingham, West Midlands

Job Description

We have a raised area at the back of our garden, 5m wide and approx 3m deep (irregular shape). We want to convert this to a raised patio area. A brick retaining wall will need building around two side of the area, about 5m + 2.5m long and about 45cm tall.
Then the area will need levelling, laying with hardcore, sand and then patio tiles, which can be taken from our current patio, as they are just lying on top of topsoil so can be shifted easily.
Access to our garden is through an open passage from front of house, approx 80cm wide. Note that there is a single yellow line to the front of our house, so it's ok to load/unload, but you will then need to find parking further away.