Witney based manufacturer formalises panelised housing offer.
Donaldson Timber Systems, headquartered in Witney, Oxfordshire, has launched a new Affordable Housing Range, positioning its panelised timber system in response to cost, labour and programme pressures across the UK housing sector. (main image: Render of Donaldson Timber Systems’ Affordable Housing Range, illustrating repeatable timber frame homes arranged for efficient site layouts and staged offsite installation.)
Operating from its facility at Curbridge Business Park in Witney, the company continues to refine its manufacturing approach, supported by automated production lines that underpin the consistent, repeatable manufacture required for a standardised housing range.
The newly released portfolio comprises 16 architect designed house types, spanning one-to-four-bedroom layouts across terraced, semi-detached and detached formats. Each has been developed around the company’s Sigma II closed panel timber frame system, aligning design intent with manufacturing constraints and enabling predictable delivery outcomes.
The system is backed by third party accreditations including BOPAS+, BBA and STA Gold, and is structured to achieve windproof and watertight stages within a single day on site.
Donaldson Timber Systems’ Affordable Housing Range showing consistent house types, material palettes and street layouts designed for repeatable offsite timber frame delivery.
Standardisation aligned with manufacturing logic
The Affordable Housing Range reflects Donaldson’s emphasis on standardisation as a means of controlling cost and reducing variability across projects.
Component selection has been rationalised, with consistent window sizes and aligned bathroom and WC layouts supporting procurement efficiency and repeatable detailing. This extends into site planning, where reduced floorplate widths and consistent building depths allow more efficient use of land, simplified servicing and streamlined masterplanning.
Fabric performance is designed into the system rather than applied later, allowing the homes to meet Future Homes Standard performance requirements without additional on site upgrades. The range also exceeds Homes England’s minimum 55 percent Pre Manufactured Value threshold using the timber frame system alone.
Built on panelised delivery and manufacturing control
The launch builds on Donaldson Timber Systems’ established position within the UK offsite sector. As part of the Donaldson Group, the company operates nationwide and has developed capacity for large scale housing delivery through controlled factory processes.
Previous Built Offsite reporting has highlighted the company’s use of advanced timber frame manufacturing systems, including robotic wall lines that have shifted production towards a more industrialised workflow. This transition has enabled greater precision, reduced material waste and improved repeatability across high volume output.
Manufacturing director Frank O’Reilly has previously outlined the rationale behind this approach, noting that closing panels in the factory reduces reliance on site based labour and improves programme certainty. That principle is embedded in the Affordable Housing Range, where fabrication led delivery takes precedence over site assembly.
The company continues to prioritise panelised systems over volumetric construction, citing logistical flexibility and reduced capital exposure. Panels can be manufactured closer to delivery, avoiding the storage constraints associated with completed volumetric units.
Deployment and sector alignment
The housing range is supported by a suite of technical documentation, including Revit models, architectural drawings, embodied carbon calculations and PMV assessments, allowing housing providers, developers and local authorities to engage with the system at both design and procurement stages.
While structured around repeatability, the designs incorporate allowances for local variation, including provisions for future services, adaptable layouts and integration of low carbon technologies such as air source heat pumps.
The range is currently being previewed to a selection of housing providers and local authorities, with uptake dependent on project approvals and procurement alignment.
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