Building A Rear Single-Storey Modular House Extension In Aylesbury?
Expanding your home with a
modular house extension in Aylesbury is an excellent way to gain extra living space without the lengthy disruptions of traditional construction. At
Vergolus, we are specialists in modular extensions, providing a
turn-key service that covers everything from
drawings, designs, planning applications, and structural calculations to painting and finishing.
Why Choose a Modular House Extension?
Faster & More Efficient Than Traditional Builds
A modular extension can be installed in a fraction of the time compared to traditional brick builds. Our prefabricated system allows for faster completion, ensuring you can enjoy your new space sooner.
Cost-Effective Solution
With an estimated cost of
£2,250 per sqm plus fees, a
modular house extension in Aylesbury provides excellent value while maintaining high-quality construction standards.
Sustainable & Energy-Efficient
Our modular extensions are built using
highly insulated materials to reduce energy consumption, making your home more sustainable and cost-efficient in the long run.
Minimal Disruption
Unlike traditional builds that require months of on-site labour, modular extensions are
manufactured off-site and assembled quickly, ensuring minimal disruption to your daily life.
Case Study: 3m x 4.5m Dining Room Extension in Aylesbury
Mr B from Aylesbury wanted to expand his home with a
rear single-storey modular extension measuring
3m x 4.5m. His primary requirements included:
- A modern dining room
- A roof lantern for natural light
- 2.5m bifold doors to connect to the garden
- Matching red and grey brickwork
Project Details
- Planning Permission: Not required (permitted development compliant)
- Total Cost: £38,750 (including fees)
- Timeframe: Installed in just four weeks
- Structural System: GRP (Glass Reinforced Polymer)
- Foundation Type: Ground screws
- Exterior Finish: Brick slip cladding matching the existing home
- Max Wall Thickness: 215mm (compared to traditional 360mm), providing more internal floor space
- Building Control Compliant & Structurally Tested
- Superior Insulation:
- 100mm foil-backed solid floor insulation
- 130mm foil-backed solid roof insulation
- 150mm solid wall insulation
- Insulated external structural roof board

At
Vergolus, we handled
all the design, structural calculations, and building control documentation, ensuring a smooth and hassle-free process.
Why We Used Ground Screws
Ground screws are a superior alternative to traditional concrete foundations. These are widely used in:
- Bridges
- Oil rigs
- Factories
- Large-scale industrial projects
Benefits of Ground Screws
- Faster installation – No need for digging or setting concrete
- Eco-friendly – Minimal ground disturbance
- Stronger & more durable – Can withstand extreme conditions
- Suitable for all soil types
- Can go up to 3m deep depending on ground conditions
- Foundation ready in just two days
Why We Chose GRP Over Steel
For this project, we opted for
GRP (Glass Reinforced Polymer) instead of a traditional steel frame system.
What is GRP and Why is it Ideal for Modular Extensions?
Glass Reinforced Polymer (GRP), also known as fibreglass, is a
high-performance composite material made by reinforcing plastic with fine glass fibres. It is
lightweight, incredibly strong, and highly resistant to corrosion, making it a popular choice in industries such as aerospace, automotive, marine engineering, and construction.
A Brief History of GRP
GRP was first developed in the
1930s as an innovative solution for creating
light yet durable materials. It gained widespread use during
World War II, when its high
strength-to-weight ratio and
weather resistance made it ideal for military aircraft and naval vessels. After the war,
GRP became a key material in
boat building, automotive manufacturing, and structural applications due to its longevity and ease of maintenance.
The Advantages of GRP Over Traditional Materials
Vergolus has chosen GRP for its modular house extensions because it
outperforms traditional steel and timber in multiple ways:
- Corrosion-resistant – Unlike steel, GRP does not rust, decay, or degrade over time.
- Lightweight yet extremely strong – Makes installation and transportation easier without compromising structural integrity.
- More Internal Floor Space – With a maximum wall thickness of just 215mm, compared to a traditional wall of around 360mm, GRP allows for up to 20% more usable internal space, creating larger rooms in the same footprint.
- High Thermal Efficiency – Our GRP modular extensions include:
- 100mm foil-backed solid floor insulation
- 130mm foil-backed solid roof insulation
- 150mm solid wall insulation
- Insulated external structural roof board These features ensure exceptional energy efficiency, exceeding Building Regulations requirements and reducing energy bills.
- Pre-Approved for Building Control – Vergolus’ GRP modular system is structurally tested and pre-approved, ensuring compliance with UK building regulations.
Vergolus is committed to innovation, continuously evolving to offer the
best, most sustainable, and energy-efficient solutions to homeowners in Aylesbury and beyond.
FAQs: Building a Modular House Extension in Aylesbury
How long does a modular extension take to build?
A modular extension can be completed in as little as 4-6 weeks, depending on the complexity of the design.
Do modular extensions require planning permission?
In most cases, modular extensions fall under permitted development rights, meaning no planning permission is needed.
What is the cost of a modular house extension in Aylesbury?
The cost starts at £2,250 per sqm plus fees, depending on design specifications.
Are modular extensions energy-efficient?
Yes, they include high-performance insulation that exceeds UK Building Regulations.
Can a modular extension be customised?
Yes, modular extensions can be fully customised in terms of layout, finishes, and features.
What is the warranty on a modular extension?
Our GRP modular extensions come with a minimum of 40 years structural warranty, while our steel system offers 25 years structural warranty.
How much disruption is involved in installing a modular extension?
Modular extensions are built off-site and installed quickly, reducing noise, dust, and overall disruption compared to traditional builds.
Are modular extensions as strong as traditional brick buildings?
Yes, our GRP and steel-framed modular extensions are structurally tested and meet UK Building Regulations for strength and durability.
Can modular extensions be installed on any type of ground?
Yes, with ground screws that can reach depths of up to 3m, our modular extensions can be installed on most ground types.
Do modular extensions add value to a home?
Yes, adding a modular extension can increase property value by providing additional high-quality living space.
Is a Modular House Extension in Aylesbury the Right Choice for You?
Choosing a
modular house extension in Aylesbury is a smart, efficient, and cost-effective way to expand your home. With faster build times, greater energy efficiency, and
up to 20% more internal floor space, modular construction is the future of home extensions. At
Vergolus, we specialise in delivering high-quality,
turn-key solutions for homeowners in and around
Aylesbury, ensuring a seamless and hassle-free experience from
design to completion.
Our
GRP structural system outperforms traditional materials, providing
long-term durability, superior insulation, and outstanding structural integrity. Paired with
ground screw foundations, your new extension will be built on a strong, eco-friendly, and long-lasting base.
Start Your Modular Extension Journey Today!
If you’re considering extending your home,
contact Vergolus today to discuss your project. Our team of experts will guide you through the process, from
design and planning to construction and finishing.
📩
Request an Information Pack
📞
Call us at 0800 433 2353 for a Free Consultation
🏡
Transform Your Home the Smart Way with Vergolus!