
Weathertight.
Then it's yours.
Our core package. Engineering, foundations, structure, roof, windows and cladding, delivered by one team to a sealed, insulated shell. The hard part done. You finish inside your way.

More than a kit
The manufacturer's system is one part. Shell Build is everything that turns it into a weathertight building, delivered by one team to one programme.
- Structural engineering
- Insulated raft foundation
- SIPs or timber frame structure
- Installation by our own teams
- Cranes, lifting and site logistics
- Roof
- Windows
- Cladding and airtightness
- Principal Contractor included
Optional: demolition, MVHR design and scaffolding. Building control and Building Regulations drawings on request, as most clients' architects provide these.
Three parts. One clear line between them.
Manufacturers make exceptional systems. We build with them. You choose how the inside is finished.
Makes the system
SIPs or timber frame panels, engineered and made in the factory to fit your design.
Builds the shell
- Digital design and engineering
- Foundations
- Structure, roof, windows and cladding
- Airtightness, checked as it's built
- Principal Contractor, with one senior contact
Finish inside your way
- Your own trades, or ones you trust
- Your kitchen, bathrooms and finishes
- Your pace and your budget
What you get at handover
A sealed, insulated shell, ready for first fix. Real homes, at the stage we hand them over.
Roof, windows and solar on
Inside, ready for first fix
Roof and cladding running togetherHomes and extensions, built to weathertight
“We’d almost given up on finding a builder for our SIPs home. The manufacturer introduced us to Dynamic Build, who delivered the frame and the on-site construction. Amazing results.”
Weeks, not months, on site.
The same recent project, two programmes. Fewer weeks on site means fewer weeks paying for scaffold, labour, finance and site costs.
Speed comes from the planning. Your home is digitally developed first, then manufacture runs while the foundations go in, so the structure arrives to a site that's ready for it.
Weathertight. Then what?
You're not left with a shell and no plan. Your trades walk into a dry, insulated, airtight building, with everything they need to know about how it was built.
Want us to take it all the way?
Complete Build adds internal fit-out and decoration, renewables and smart controls, through to handover. Complete Build
What you get from us
- A weathertight, insulated shell
- Fabric designed for EPC A or B
- Technical build guides for your trades
- Handover pack and product guarantees
What your trades do next
- First fix electrics and plumbing
- Heating and ventilation
- Plastering and screeds
- Kitchen, bathrooms and finishes
What we take responsibility for
It starts with digital design and engineering. Everything after it runs to a plan that's already been proven on screen. Built for the difficult ones too: tight sites, access complications, multiple party walls, challenging designs, high performance targets and fixed deadlines. Our skills: design for manufacture and assembly, SIPs and timber frame installation, integration, project management, cost management, health and safety, manufacturing management, value engineering and customer service.
- Digital design & engineeringWe digitally optimise manufacturing and construction before anything is ordered: engineering, buildability and budget worked through on screen.
- Principal ContractorWe hold the legal responsibility for the site and run it, managing our own installers and specialist trades who've built this way before.
- ProcurementEvery system bought to fit the others.
- Quality controlOn site, checking insulation, airtightness and junctions as they're built.
- SchedulingManufacture runs while the foundations go in, so nothing waits on site.
- Safety and handoverPrincipal Contractor safety duties on site, and a handover pack with product guarantees and how your home was built.
Shell Build brings six manufactured systems together
Each system can involve several companies in the supply chain. We bring them all together through one company to simplify, accelerate and de-risk delivery. Complete Build adds three more.
Do you manufacture?
No. It takes multiple manufactured systems to build a home. We partner with leading manufacturers and focus on how those systems fit together, delivering low energy homes. SIPs and timber frame are our specialism. Where a project calls for it, and it brings clear benefits in delivery and in living in the home, we’ve also built with ICF and volumetric modular.
Shell Build
- Foundation systems
- SIPs or timber frame
- Engineered timberGlulam and LVL
- Roofing systems
- Cladding systems
- Windows and doors
Complete Build adds
- MVHR and ventilation
- Low energy heating
- Solar and battery
Shell Build or Complete Build?
| Shell Build | Complete Build | |
|---|---|---|
| We hand over | A weathertight, insulated shell, with fabric designed for EPC A or B | A finished home designed to EPC A or B |
| Foundations | Included | Included |
| Structure, roof, cladding | Included | Included |
| Services, MVHR, heat pump, solar | Your team, or MVHR design as an option | Included |
| Finishes and fit-out | Your team | Included |
| Best for | Clients with their own trades, or who want control of the finish | Clients who want one team to the keys |
Built for the way self-build money works
Self-build mortgages release funds in stages, and weathertight is one of the big ones. Shell Build takes you there under one contract, with a confirmed price your lender can see before you start.
Mortgage and warranty ready. Built to be accepted by mainstream lenders and structural warranty providers. Need a broker? We can introduce you to a mortgage specialist.
What might your Shell Build cost?
Where shall we show your price guide?
Your typical cost range appears here straight away.
A typical range for projects like yours, before we've seen your drawings or site. Excludes VAT, professional fees and Principal Designer. Your 5-day estimate is priced from your own drawings.
Your route to weathertight
- 01Day 0Send your drawings
Planning drawings, with your application submitted or approved. No drawings yet? Start with the instant price guide.
- 025 working daysYour estimate
Priced from your drawings.
- 03About 6 weeksWe digitally develop your home
Engineering, buildability and budget worked through on screen, and manufacture and construction optimised, before anything is ordered.
- 04Before we startYour confirmed cost
An easy-to-read breakdown, construction and professional fees shown separately, with a confirmed price and date: cost, programme and specification certainty before we start on site.
- 05Weeks, not monthsWe build and project manage
Manufacture runs while foundations go in. One team runs the site, with one point of contact for you.
- 06Agreed dateYour shell, handed over
Weathertight and insulated, with technical build guides so your trades can start straight away.
Shell Build questions
Can I use my own trades inside?
Yes. That's what Shell Build is for. We hand over a weathertight, insulated shell and technical build guides, and your trades take it from first fix to finish.
Are windows and external doors included?
Windows are included in Shell Build. External doors are confirmed in your estimate, as they depend on your design and spec.
My drawings are for a traditional build. Is that a problem?
No. Planning drawings are all we need. We digitally develop your home for SIPs or timber frame, working through engineering, buildability and budget before anything is ordered.
Who is Principal Designer?
We're Principal Contractor on every Shell Build. Principal Designer is a separate role, usually held by your architect. If you don't have one, we'll show you how it's covered in your estimate.
Can I move up to Complete Build later?
Yes. You can decide as your design develops. Complete Build adds internal fit-out and decoration, renewables and smart controls through to handover.
Will my lender and warranty provider accept it?
Our homes are built to be accepted by mainstream lenders and structural warranty providers. Tell us who you're using and we'll work to their requirements.
