Black Barn, Witherslack

Project Overview

The Black Barn is a contemporary home in Witherslack, Cumbria. We acted as the main contractor, delivering a high-performance, architect-designed residence with strong environmental considerations. The project features extensive glazing, a mezzanine, and a combination of Structural Insulated Panels (SIPs), burnt larch cladding, and standing seam aluminium.

Project Context

Located on the edge of the Lake District National Park, the site required a design that was sensitive to its natural surroundings and offered clear views of the landscape and night sky. The client sought a high-specification build with careful attention to detail. The ground conditions were variable, and the rural setting posed logistical challenges which influenced both the design and construction approach.

Design and Architectural Features

Working to architect studio John Bridge Ltd’s design, we implemented the following key features:

• Rooflights and Bifold Doors: Installed to maximise natural light and create a direct link to the surrounding woodland.
• Mezzanine: Designed to offer views of the night sky and provide a quiet retreat within the home.
• Cladding: The exterior is finished with burnt larch and standing seam aluminium to provide durability and visual contrast.
• Interior Finishes: Slatwall panelling was used to introduce texture and warmth to the internal spaces.

Construction Methodology

We adopted a construction approach that addressed both environmental and structural requirements:

• Mini Steel Pile Foundations: Chosen due to poor ground conditions and to minimise disruption to the site.
• SIP Superstructure: Enabled a quicker build programme, improved thermal efficiency, and reduced waste.
• Superfoil Insulation: Installed internally to enhance the thermal envelope with a slim profile.
• Aluminium Cladding: Selected for weather resistance and installed with attention to detailing.
• Heating: Electric underfloor heating and a wood-burning stove were included for consistent warmth and low maintenance.

We used prefabricated components where possible to simplify logistics and minimise on-site activity.

Sustainability and Energy Efficiency

Sustainability was a key part of our approach. Measures included:

• Low-Impact Materials: SIPs and burnt larch reduce reliance on high-energy manufacturing and chemical treatments.
• Efficient Thermal Design: SIPs, Superfoil insulation and an airtight structure contribute to a well-performing envelope.
• Foundation Strategy: Steel piles preserved the existing site conditions and avoided unnecessary excavation.
• Passive Solar Gain: The positioning of glazing was designed to reduce energy demand for lighting and heating.

While we do not have verified performance data, we estimate U-values in the region of 0.15–0.20 W/m²K.

Challenges and Solutions

• Ground Conditions: Addressed using a mini steel pile solution for stability and minimal environmental disruption.
• Thermal Bridging: Managed through detailing and installation of multifoil insulation to prevent heat loss.
• Aesthetic Detailing: The minimalist brief required careful execution, particularly for glazing and cladding.
• Remote Access: We used prefabrication and scheduled deliveries to manage the rural location efficiently.

Client Experience and Outcomes

The client emphasised the importance of attention to detail throughout the project. They particularly valued the connection to the natural surroundings, the light-filled interior, and the views from the mezzanine. Our communication and collaborative approach helped ensure that the final result matched their expectations.

Project Team

• Architect: studio John Bridge Ltd
• Contractor: Barra Projects Ltd

Conclusion

The Black Barn reflects our ability to manage technically demanding rural projects with a focus on sustainability and build quality. Through careful planning, prefabrication, and material selection, we delivered a functional and visually striking home that met the brief and performed well in its environment.