A Guide to Timber Windows for New Builds in Conservation Areas
- 22 April 2025|
- News
The combination of contemporary construction and historic preservation creates unique challenges for professionals developing new buildings in conservation areas. Window selection is perhaps the most visible (and therefore scrutinised element) of these projects, meaning that careful consideration is essential.
For architects and developers working within these protected zones, understanding how to specify timber windows that satisfy conservation officers while meeting building regulations can mean the difference between project approval and costly redesigns.
This guide examines the specific considerations, options, and benefits of timber windows for new builds in conservation areas, providing a roadmap for success based on decades of our specialist experience at Lomax + Wood.
What are the challenges of new builds in conservation areas?
When planning a new development in a conservation area, your project faces heightened scrutiny from local authorities and conservation officers. These authorities are tasked with preserving the character and appearance of these historic areas, meaning that building materials, design elements, and particularly fenestration choices must be considered carefully.
Key obstacles include both meeting planning permission requirements and navigating the need to balance modern building regulations with conservation area requirements essential for preserving the historic integrity of the area.
Particularly, achieving the necessary thermal performance while maintaining traditional aesthetics can be a challenge which requires specialist knowledge.
Why Lomax + Wood are conservation area specialists
With over 30 years of industry expertise, Lomax + Wood has become a trusted partner for architects and developers working on projects within sensitive conservation settings. Our experience has equipped us with the knowledge necessary to navigate the complex requirements of conservation area development while maintaining modern standards of performance.
Our team’s experience working with conservation officers and local authorities across the UK gives us valuable insights into the specific requirements that vary between regions. This experience translates into practical guidance for our clients.
Our bespoke approach allows us to provide tailored solutions that honour historical aesthetics while incorporating modern performance standards.
Traditional timber window options for conservation area new builds
For new developments in conservation areas, we offer several timber window styles that effectively balance traditional aesthetics with modern performance.
Box sash windows
Our timber box sash windows deliver the charming period appearance often required in conservation areas. These windows are a popular choice for properties in areas of historic interest, as they offer all the aesthetics of heritage windows but with updated performance.
These windows feature traditional proportions and sightlines that immediately complement historic contexts. We offer traditional ironmongery and optional slender glazing bars for authentic period detailing that can match surrounding heritage properties.
Despite their historical appearance, our sash windows incorporate modern weathersealing and efficient operation mechanisms. In terms of performance, our sash windows achieve U-values as low as 1.1 W/m²K for excellent thermal efficiency that meets contemporary building standards.
Spring balance sash windows
For projects where budget considerations are paramount but historical accuracy remains essential, our spring balance timber sash windows are an excellent option.
Each unit comes double glazed as standard with U-values as low as 1.1 W/m²K. The elegant 20mm wide ovolo glazing bars deliver a traditional appearance that complements heritage surroundings. We also incorporate internal glazing for improved security and easier maintenance, addressing practical concerns.
Flush casement windows
For projects where sash windows are not suitable, our wooden casement windows provide versatility for various architectural styles found in conservation areas. The flush designs complement traditional aesthetics and can be adapted to different period contexts.
We offer customisable sight lines to match historic proportions, ensuring visual harmony with existing buildings. These windows achieve U-values as low as 1.0 W/m²K, and security concerns are addressed through PAS 24 (2016) compliance, providing peace of mind. Our extensive ironmongery options allow developers to match period details appropriate to the conservation area’s character.
Why our timber windows excel in conservation area new builds
Developing a new building in a conservation area requires products that satisfy multiple stakeholders. Our timber windows are specifically designed to meet these complex requirements.
Conservation officer approval
Our windows are designed with careful consideration of traditional aesthetics and historical accuracy. We incorporate authentic profiles that respect historical precedents. Traditional joinery techniques are employed throughout our manufacturing process.
We also offer period-appropriate glazing options that maintain historical integrity. Our range includes sympathetic hardware and finishing options that complement the historical character of conservation areas.
Modern performance standards
While honouring traditional appearances, our windows deliver contemporary performance benefits. We achieve excellent thermal efficiency with U-values meeting and exceeding building regulations, helping developers comply with energy requirements.
Advanced acoustic performance (up to 42dB reduction with Acoustic+ upgrades) creates comfortable interior environments. Our products undergo comprehensive weather testing to BS6375 standards, ensuring longevity and performance. PAS 24 security compliance satisfies Building Regulations Part Q, providing security without compromising appearance.
Sustainability credentials
For environmentally conscious projects, our windows offer significant benefits that align with modern sustainability expectations.
At Lomax + Wood, environmental responsibility is central to our manufacturing philosophy. We source all timber used in our bespoke windows and doors with full Chain of Custody certification (FSC® or PEFC), ensuring complete traceability throughout the entire supply chain, from the forest to the finished product.
Benefits of choosing Lomax + Wood for your conservation area project
Complete design support
Our team offers comprehensive guidance from concept to completion to simplify your project journey. We begin with initial consultations to understand your project’s specific requirements and conservation constraints.
Our services include sample and specification development to satisfy planning requirements and expedite approvals. We provide detailed technical drawings and performance documentation to support planning applications. Throughout the project, we offer ongoing support during the planning and installation process to address any challenges that arise.
Single point of contact
With our scalable packages, ranging from supply only to a full design, survey, supply and fit service, developers and architects benefit from a streamlined experience with one single point of contact.
Our approach ensures consistent quality control throughout the manufacturing and installation process. This simplifies your project by eliminating the need to manage multiple suppliers and contractors.
Made-to-order flexibility
Our bespoke manufacturing approach enables solutions tailored to your specific project requirements.
- Custom dimensions to suit specific project requirements
- Varied timber options including Engineered Redwood, Hardwood, Oak, and Accoya to meet different needs
- Extensive finish options include dual colours to match conservation area characteristics
- Hardware and ironmongery selection to complete the look
Timber windows for new builds in conservation areas: Choose Lomax + Wood for your project
With Lomax + Wood’s range of timber windows, you gain the perfect solution – both the traditional look required by conservation officers and the modern performance demanded by today’s building standards.
To discuss your specific project requirements and receive expert advice on timber windows for new builds in conservation areas, contact our team today. Complete our online contact form or call 01277 353857 for a free, no-obligation quotation or to discuss your project.
