Oak Framed Annexes

Bespoke Oak Annexes – Supplied by Experts

Overview

Oak annexes are an effective way to add practical, high-quality living space that complements your property. At Hardwoods Group, we supply bespoke oak frame kits, made to your exact specifications using sustainably sourced, premium-grade oak.

We operate as a supply-only manufacturer – we don’t carry out installation. Our oak annexe kits are designed for ease of assembly on-site, making them ideal for trade professionals and self-build projects.

Precision-Crafted in the UK

Every oak annexe frame is manufactured in our UK workshop, combining traditional oak joinery with modern CNC machining for precise, high-quality results. From structural posts to glazing systems, each component is engineered for strength, durability, and a clean, professional finish.

Designed for Self-Build Projects

Your oak annexe kit is delivered ready for installation by your builder or contractor. We provide detailed instructions and technical support to help ensure an efficient, trouble-free build.

Suitable for a wide range of uses – including guest accommodation, home offices, granny annexes, studios, or garden retreats – our annexes are made to order and designed to suit your property, layout, and intended use.

You can submit your own drawings and measurements, or collaborate with our design team to create detailed 3D CAD plans. All designs are signed off before manufacturing begins to ensure a perfect fit and smooth build.

No two homes are alike – and your annexe should be just as unique. That’s why we offer a fully bespoke design service, tailored to your property, layout, and requirements.

Our experienced design team uses advanced 3D CAD software to create detailed drawings that ensure every component of your oak frame fits perfectly. This precision allows for a smooth supply and installation process – ideal for both trade professionals and self-builders.

You can submit your own measurements and drawings, or work directly with our designers to bring your vision to life.

Ready to get started? Contact our team on 01244 377811 or upload your plans today.

Products details

Oak Annexe Kit Specifications

Our bespoke oak annexe kits are fully customisable to match your vision and your building needs – ideal for trade supply and self-build projects.

Frame Materials:
– Choose from QP1-grade green oak (fresh sawn) or air-dried oak beams for added stability.
– Rafters can be specified in oak or softwood, depending on your project’s requirements and budget.

Glazing System:
– If incorporating glass in the project, we recommend our oak capping system to keep your glazing watertight and secure as the timber naturally

Cladding Options:
Available cladding styles include:
– Tongue & Groove
– Featheredge
– Shiplap

Brace Designs:
Choose between:
– Straight braces – clean and modern
– Curved braces – classic and traditional

Every kit is cut and prepared for easy installation by your contractor or build team. For guidance on choosing the right specification, speak to our design team.

  1. Submit your bespoke requirements and get your free quote.
  2. Work with our in-house design team while they produce a 3D CAD drawing to check all the boxes of your specifications.
  3. Once approved, the frame design heads to production to meet our state-of-the-art 5-axis and 6-axis CNC Machines.
  4. After manufacture, our craftsmen check the frame for precision perfection.
  5. Delivered straight to your site in our popular DIY oak pergola kit, designed for easy installation.

If you’re looking for a high-quality, long-lasting, oak-frame pergola kit, our team is ready to bring your vision to life. Contact us today to begin your project!

What is an Oak Annexe and how is it different from a garden room or summerhouse?

An oak annexe is a fully insulated, self-contained timber-framed living space made from high-quality oak. Unlike a garden room or summerhouse, an oak annexe is designed for year-round use and can include a kitchen, bathroom, and living areas.

Do I need planning permission for an oak annexe in the UK?

In many cases, oak annexes can be built under permitted development rights, especially if used by a dependent relative. However, planning rules vary by location and intended use, so we always recommend checking with your local authority.

Can an oak annexe be used as a permanent home or granny annexe?

Yes, our oak annexes are ideal for use as granny annexes or independent living spaces. They’re built to residential standards and include insulation, plumbing, and electricity for comfortable year-round living.

How long does it take to build an oak annexe?

From design approval to final installation, an oak annexe can take anywhere from 8 to 16 weeks, depending on size, complexity, and groundwork requirements. We provide clear timelines during the consultation process.

What foundations are required for an oak annexe?

Oak annexes typically require a solid concrete base or ground screw system, depending on soil conditions and annexe design.

Is your oak sustainably sourced?

Yes, at Hardwoods Group we are committed to sustainability. All our oak is responsibly sourced from PEFC or FSC-certified forests, ensuring environmental responsibility in every build.

Can I customise the layout and design of my oak annexe?

Absolutely. Every oak annexe is made to order and tailored to your specific needs, from internal room layouts to roof styles, window placement, and exterior finishes.

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