Celtic Plus
Celtic Plus is an expanded modular garden annexe designed to provide greater internal space while maintaining structural efficiency and compliance with Caravan Act dimensional requirements. Constructed using advanced timber and CLT technology, it combines residential-grade performance with a clean, contemporary architectural form, offering an overall footprint of approximately 12 x 3.65 metres and a usable internal area approaching 33 m².
from £81,900
(Zero VAT, excluding transport)
More Space, Greater Flexibility
Developed as an enhanced version of the Celtic model, Celtic Plus introduces an additional bedroom and expanded living configuration, creating a more generous internal environment suited to multigenerational households or long-term independent living. The layout integrates two bedrooms, an open-plan kitchen and living area, and a fully fitted bathroom, ensuring practical circulation and balanced proportions throughout. The increased internal volume allows for improved storage, clearer zoning between private and shared areas, and greater day-to-day comfort.
Its modular structure enables high levels of precision during off-site manufacturing, ensuring consistent build quality, dimensional stability, and improved thermal efficiency. Cross-laminated timber panels provide structural strength and long-term durability, while high-performance insulation systems support year-round residential comfort. The extended footprint allows for the inclusion of optional terrace connections, enhancing the relationship between internal living space and the surrounding garden environment.
10 Year Warranty
BS 3632:2023 Compliant
Predictable Scope
Energy Efficient
Minimal Site Disruption
Externally, Celtic Plus can be tailored through a selection of façade finishes, including natural timber cladding for a warm, residential appearance or contemporary metal finishes for a more modern expression. The design remains adaptable to both traditional garden settings and more structured urban plots, ensuring architectural cohesion with the main dwelling.
Building Specification
Celtic Plus is delivered in a turnkey specification, complete with finished façade, insulated roofing system, and fully fitted interior. Precision modular fabrication allows for efficient on-site assembly, reducing installation time while delivering a durable, energy-efficient garden annexe engineered for long-term independent living.
Speak to us
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.