Five fixed constraints on one site: the Green Infrastructure corridor at the southern end, an avenue of TPO limes through the middle, an active badger sett on the eastern boundary, arsenic and lead in made ground, and clay beneath it all, with a single watercourse ditch as the only outfall.
The full story
The site looked open, but almost every part of it was spoken for. The land had been Inwoods House, then a training centre, then offices, all since demolished, and the ground carried localised arsenic and lead in made ground that needed targeted remediation before homes could sit on it. The southern third had to stay open as the council's Green Infrastructure corridor. Across the middle ran an avenue of mature limes protected by a Tree Preservation Order, with beech hedges and protected oaks along the boundaries, and an active badger sett on the eastern edge that had to be kept and worked around.
The ground was as awkward below as above. Levels fall around eight metres from Ashlawn Road down to the south, where a single ordinary watercourse ditch was the only place surface water could go. Clay beneath the gravel ruled out soakaways, so every drop had to be held back and released slowly. On top of that sat the access: two new junctions onto Ashlawn Road under a Section 278 agreement, with the NCN41 cycleway to widen to three metres. For a developer none of that is abstract. Remediation, attenuation, tree protection and highway works are each a cost line and a programme risk, sitting between buying the land and selling the first home.
The layout answered the site rather than fighting it. The homes were set against what the land would take, with built form and gardens held inside the line the earlier care-village consent had established, so the council could see the green corridor was not being eroded. The drainage became part of the landscape: swales, an attenuation basin and a flow control device hold surface water back and release it below the greenfield rate, cascading through the existing pond into the southern ditch. One team ran planning, highways and drainage, ecology and arboriculture, ground investigation, transport and air quality into a single submission, and answered the planners' questions on mix, windows and drainage rather than letting them stall the application.