Design | Build | Sustain

Costs and Packages

Transparent package definitions help customers compare quotations on a like-for-like basis.

Available service levels

Design only

Concept, planning, Building Regulations, structural design and SIP details selected to suit the project.

SIP supply only

A manufactured panel package for installation by an experienced contractor.

Supply and install

Panel manufacture, delivery and erection of the structural SIP shell.

Weatherproof or turnkey

Additional elements such as roofing, openings, cladding, services and finishes included to an agreed specification.

What affects price?

Key variables include floor area, shape, glazing, roof form, access, foundations, drainage, structural openings, specification, internal finishes and location. A simple square building is usually more economical than a highly articulated design of the same area.

How quotations are prepared

Early figures may be based on assumptions. A detailed quotation is prepared once the design, site information and package boundaries are sufficiently defined. VAT, professional fees, statutory fees and client-supplied items should be identified separately.

Pricing note: Add your genuine current guide prices only after confirming costs, geographical coverage and exclusions. Avoid advertising a headline rate that does not reflect a typical completed project.

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Send us your ideas, drawings or site details for an initial project review.

Talk to Room Beyond

Room Beyond AssistantAI-powered initial guidance
Welcome to Room Beyond. I can help with initial questions about SIP garden rooms, annexes and extensions. What space are you hoping to create?

AI responses may be inaccurate. Project-specific design and approvals require professional review.