Neach Hill, Neachley

Neach Hill, Neachley

Located in a semi-rural locale, the previously abandoned Neach Hill House was acquired for the purpose of renovating the once great manor house. The project includes the renovation and modernising of the main manor house, the conversion of stable houses to a grand hotel, and the development of a new residential estate. 

Our team at Civia was introduced to the project to meet the drainage needs of the site, including an assessment of the flood risk to the site and exploring the different SuDs options available on site. The site itself was apportioned between Neach Hill House’s estate to the north and the proposed residential site to the south, as well as addressing the drainage design of a long access track through densely vegetated woodland.

Due to limited access to watercourses and sewers, it was proposed to manage all surface-water on-site for both phases. The 58 dwellings was proposed to drainage to communal area soakaways; the Neach Hill estate to drain into a historical pond repurposed as a buried aggregate-based soakaway; and the access roads into roadside french drains.

The foul drainage was proposed to be connected between the two phases to a proposed foul pumping station compound, discharging to existing sewers on Newport Road 1km to the east.

 

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Dudley Road, Birmingham

Dudley Road, Birmingham

The Dudley Road project in Birmingham involved the conversion of an existing retail property into two apartment properties on a constrained site directly adjacent to the highway. Much of the site was hardstanding, limiting the opportunity for conventional infiltration or open SuDS features, while the proposed layout created a need to carefully manage runoff within a small urban footprint. The introduction of a rear grassed area provided an opportunity to improve both attenuation and water quality.

Civia worked with Structural Hub to prepare the drainage design for the development. Following a review of the site constraints, we developed a strategy using rainwater gardens, gravel-based attenuation and a flow-controlled connection to the public storm sewer. This reduced surface water discharge by 63%, achieving an outfall of 1.4 l/s, only marginally above the calculated greenfield runoff rate. The solution introduced sustainable drainage benefits to a constrained site while maintaining a practical and cost-effective layout.

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Inspired by this case study and want to learn how Civia can make your next project a success? Contact us today.