Garden Annexes
Design & Build
Norfolk

Celtic Mini

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Norfolk Garden Annexes Design & Build

Celtic

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Norfolk Garden Annexes Design & Build

Celtic Plus

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Residential-Grade Garden Annexes Design & Build Across Norfolk

Celtio designs and delivers modular garden annexes, granny annexes and insulated garden rooms throughout Norfolk. Built using advanced CLT timber construction and precision off-site manufacturing, our garden buildings are engineered for year-round comfort, structural durability and compliance with Caravan Act dimensional requirements where applicable. Whether you are creating independent accommodation for a family member or adding a fully insulated garden room to your property, we provide high-performance modular solutions tailored to Norfolk homes and site conditions.

10 Year Warranty

BS 3632:2023 Compliant

Predictable Scope

Energy Efficient

Minimal Site Disruption

Norfolk Garden Granny Annexes & Garden Rooms Design & Build
Norfolk Garden Granny Annexes & Garden Rooms Design & Build
Norfolk Garden Granny Annexes & Garden Rooms Design & Build
Norfolk Garden Granny Annexes & Garden Rooms Design & Build
Norfolk Garden Granny Annexes & Garden Rooms Design & Build
Norfolk Garden Granny Annexes & Garden Rooms Design & Build

High-Performance Garden Rooms and Granny Annexes Builder Norfolk

Demand for garden annexes in Norfolk continues to increase as homeowners look for multigenerational living solutions, guest accommodation and flexible home office space. Our modular granny annexes in Norfolk are fully self-contained, energy-efficient and built to residential performance standards, offering durable alternatives to lightweight outbuildings. Designed with insulated wall, roof and floor systems, they provide consistent internal comfort throughout the year.

Using Cross-Laminated Timber panels, our modular garden rooms in Norfolk deliver enhanced structural stability and long-term reliability. CLT construction reduces thermal bridging and improves overall building performance, making each unit suitable for permanent use rather than seasonal occupation. This ensures sustainable, low-maintenance living space capable of withstanding coastal and rural weather conditions common across the county.

Off-site manufacturing ensures precise build quality and efficient on-site installation. From compact one-bedroom granny annexes to larger two-bedroom garden lodges, our modular systems are engineered for compliance, sustainability and long-term property value enhancement across Norfolk.

We cover the following areas in Norfolk

  • We supply modular garden annexes and insulated garden rooms in Norwich, supporting independent living solutions within established residential areas.

  • We deliver granny annexes and garden rooms in Great Yarmouth, designed for durability in coastal conditions.

  • We install residential-grade garden annexes in Cromer, engineered for energy efficiency and structural stability.

  • We provide modular granny annex solutions in Sheringham, tailored for rural and seaside properties.

  • We supply fully insulated garden rooms in King’s Lynn, built for year-round residential use.

  • We deliver self-contained garden annexes in Thetford, designed within Caravan Act limits where applicable.

  • We install modular garden buildings in Wymondham, combining precision manufacturing with modern design.

  • We provide energy-efficient granny annexes and garden rooms in Dereham, engineered for long-term performance across Norfolk.

Speak to us

Get in touch

If you would like to discuss your project, request specifications, or explore suitable configurations, our team is ready to assist. Get in touch to arrange a consultation and take the next step toward modular living built around your requirements.