My neighbour has a postage stamp garden 5 panels long by 4 panels wide plus a patio. They paid 36k to have it landscaped and it took a staggering 10weeks. That money included a solid retaining wall which was covered in granite, ditto the patio. It looks like corporate London but each to their own. I give this for reference as local properties can absorb this expense. However I do think they over did it a bit with the granite. My garden is a bit bigger, 7 x 7 panels square. It really needs landscaping from scratch as it was ploughed up when we built an extension. I don't have 36k hanging around but we intend to save up & do it properly. What would be a realistic budget? Local houses sell for 1.5M.