Project type: Domestic
Build cost: £340, 000
Location: Broomhill Conservation Area, Sheffield, S10
Client: Confidential
Contractor: Paramount Builders
Status: Completed 2023
Fees: Advance Package
Building contract: RIBA Domestic Building Contract
Area cost: £2378 / m²
A faded period house, has been given a new lease of life with a partial deep retrofit, modern upgrades + a tricky extension with piled foundations. This creates a fantastic + accessible home for all the family. A new suite of modern rooms have been created in the side extension to provide easy to use facilities for all generations of the family, including a streamlined wet room. All Ground Floor rear rooms have been remodelled into a single, open plan Kitchen / Dining space. Extensive external landscaping has also been proposed to unify and make all areas much more accessible for everyone using the building, inside and out.
A sympathetic, matching in extension design has been used that complements the original building while using high performance, modern methods of construction. Extensive external landscaping has also been proposed to unify and make all areas much more accessible for everyone using the building, inside and out. High quality natural and organic materials were used, such as sustainably sourced, recycled, natural sandstone walling, taken from old Yorkshire mills, natural Welsh slate roofing, timber framed windows and doors, porcelain tiled paving, and natural stone flagstone flooring.
Custom made joinery features heavily, such as the hand-crafted timber kitchen by Russell and Hutton, which is a big wow factor. The feature bespoke timber framed windows and doors are proposed to fit in with the existing but also to set off the stunning details and shapes.
The house is located in Broomhill Conservation Area, with an Article 4 Direction in place, which means all Permitted Development rights have been removed by the local authority. We didn’t utilise the pre-application planning enquiry service as we were confident the design would be accepted by Sheffield City Council. The Planning Application sailed through and was approved first time, without any amendments required. The Planning Officer and Conservation Team also praised the high-quality design and thoughtful approach.
Numerous technical challenges needed to be overcome. Such as insulating and improving the energy efficiency of the existing solid walled house, called a partial deep retrofit. A new solid limecrete floor with underfloor heating + natural cork wall insulation have been used. These methods help keep heat in the building but also allow the fabric of the existing building to remain breathable, which prevent damp problems occurring.
The extension is also located above a small public sewer so special piled foundations had to be used, with separate approval from Yorkshire Water. The extension is also located very close to a boundary retaining wall which meant the terms of the Party Wall Act needed also to be complied with. All in addition to the standard Planning Permission and Building Regulations approvals. This modern upgrade + tricky extension project with piled foundations has helped transform this house into a much loved home.
A more in depth technical case study of this project is also featured on the Detail Library website.
Obtaining Planning Permission in a Conservation Area + retrofit energy efficiency upgrades to old Victorian house + organising special piled foundations + arranging Party Wall Act compliance + organising sewer build over permissions from Yorkshire Water
“We are loving living in our new space – it really is amazing. There isn’t anything that we would have wanted done differently so I think all the detailed work that went into planning it all was very definitely worth it.”
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