HUP Extensions
Greenock.
HUP extensions use a modern structural panel system designed to improve construction efficiency while maintaining structural reliability. Modular Home Extensions designs and builds HUP extensions across Greenock as part of the OBG Group.
What is a
HUP extension?
HUP (House Extension Panel) is an advanced structural panel system manufactured off-site to precise tolerances. The panels are delivered to site and assembled quickly by approved installers — combining the efficiency of modern modular construction with the structural integrity required for a permanent residential extension.
The HUP building system uses engineered panels that form the structural walls and roof of the extension — suitable for the coastal homes, traditional properties and modern housing developments found across Greenock and the surrounding area.
- Off-site manufactured structural panels
- Fast, controlled on-site assembly
- Consistent, engineered structural performance
- BBA independently certified system
- 10-year structural guarantee as standard
Modern extensions.
Flexible design.
The HUP system gives architects the freedom to design modern extensions without compromising on layout. Open plan kitchens, family living spaces, garden-facing glazing and vaulted ceilings are all achievable — the panel system supports them all.
Our architectural team designs HUP extensions that integrate with the existing property while delivering bright contemporary living space. Our in-house architects collaborate directly with the construction team, so the design is always buildable and the brief is delivered exactly as intended.
- Open plan layouts including kitchens and living spaces
- Large areas of glazing and bifold doors
- Flat roof and pitched roof configurations
- Single and double storey extensions
- Designs sympathetic to existing property character
Traditional concrete
foundations. Always.
Despite using advanced panel systems, every HUP extension we build is installed on traditional concrete foundations — fully compliant with Scottish Building Standards and signed off by building control. No shortcuts, no alternative foundation methods.
Concrete pad foundations require significantly less material than a full traditional slab, keeping groundwork fast and clean — while meeting every structural requirement for a permanent, building-control-approved residential extension.
- Reinforced concrete or insulated strip foundations
- Fully compliant with Scottish Building Standards
- Building control approved on every project
- Less material and disruption than a full concrete slab
Why choose a
HUP extension?
HUP systems provide precision manufacturing, consistent structural performance and efficient installation — while still allowing fully bespoke architectural design for your Greenock home.
Precision manufactured
Panels are manufactured off-site to exact tolerances in a controlled factory environment — eliminating the variability of traditional site-built construction and ensuring a consistent, high-quality result every time.
Faster programme
Because the panels arrive on site pre-manufactured and ready to assemble, the on-site construction phase is significantly shorter than a traditional brick-and-block build — reducing disruption to your household.
Structural performance
The HUP system is independently certified by the BBA and carries a 10-year structural guarantee. Every panel is engineered to perform — there's no reliance on site conditions or the skill of individual trades for structural integrity.
Thermal efficiency
The system achieves a U-Value of 0.18 W/m²K — exceeding current Scottish Building Regulation requirements for thermal performance and helping to keep your energy bills lower year-round.
Bespoke design
The HUP system places no restrictions on architectural design. Our in-house team designs every extension specifically for your home and brief — open plan, glazed, single storey, double storey — the system supports them all.
Pre-approved for building control
The system is pre-approved by Stroma, Assent and MFA Building Control, making the building warrant process straightforward. Our team manages the full submission — you don't have to touch a form.
Choosing a HUP approved
builder in Greenock.
Choosing a HUP approved builder ensures the structural system is installed by experienced, trained specialists. HUP structural panels must be installed correctly to guarantee full structural performance — the system is only as good as the installation.
Modular Home Extensions is an approved HUP installer. Our team is trained on the system and has direct experience integrating HUP panels with concrete foundations, architectural junctions and building control requirements in Greenock and the surrounding area.
Talk to Our TeamCorrect structural integration
Approved builders understand how HUP panels integrate with the substructure, wall junctions and roof to deliver the structural performance the system is engineered for.
In-house architectural design
Our architects design every project around the HUP system from the outset — fewer surprises on site, faster building warrant approval, and a finished result that performs exactly as designed.
Planning and building warrant managed
We handle planning permission and building warrant submission as standard. As approved installers familiar with Scottish building control requirements, the process is fast and straightforward.
10-year structural guarantee
Every HUP extension we install carries a 10-year structural guarantee as standard, backed by the manufacturer's BBA-certified system warranty.
HUP extensions across
Greenock & beyond.
We provide modular extension design and construction across Greenock and nearby areas. These locations feature coastal homes, traditional properties and modern housing developments where thoughtfully designed extensions can transform everyday living space.
HUP extensions in Greenock
— answered.
Do HUP extensions need planning permission in Greenock?
Planning requirements depend on the design and scale of the extension. Our architectural team can guide homeowners through planning applications and building warrant submissions where necessary. Many extensions qualify under Permitted Development Rights and require no formal application.
Are HUP extensions built on foundations?
Yes. All HUP extensions built by Modular Home Extensions are installed on traditional concrete foundations — either insulated strip foundations or reinforced concrete bases — to fully satisfy Scottish building control requirements.
Who designs a HUP extension?
Every project is designed by our in-house architectural team. Modular Home Extensions is part of the OBG Group, providing integrated architectural design and construction expertise under one roof — with no third-party architect fees.
Do HUP extensions add value to a home?
A well-designed extension can significantly increase both usable living space and property value, particularly when it improves the layout of kitchens, living areas or bedrooms. HUP extensions carry the same building control approval and completion certificates as any permanent extension.