It’s one of the most common questions we’re asked — and the answer is yes, a high-quality glass extension can absolutely add value to your property. But the key word here is quality.
In today’s property market, buyers want more than just an add-on. They want usable, thermally efficient, and beautifully integrated living space that enhances the home — not detracts from it.
How Much Value Can You Expect to Add?
According to property experts and surveys:
- A well-designed, high-quality conservatory or glass extension can typically add 5–7 % to a property’s value.
- In the right property and location, with premium finishes, some sources indicate uplifts of up to 10 % or more.
- However, a poorly executed, low-quality extension can reduce value — by appearing cheap, poorly integrated, or thermally inefficient.
These numbers show just how crucial it is to invest in the right design, structure, and materials.
What Factors Influence the Value Added?
Here’s what makes the difference:
1. Structural Design & Visual Integration
A value-adding extension should feel like a natural continuation of the existing home. Poor layout, bad proportions, or clashing materials can create the opposite effect. Our bespoke designs are made to complement your architecture, not compete with it.
2. Thermal Efficiency & Usability
Using advanced materials like our New Generation Glass (NGG) ensures the space is warm in winter, cool in summer, and energy-efficient year-round. A room that’s only usable 3 months of the year won’t be seen as added value.
3. Quality of Materials & Craftsmanship
Cheap uPVC frames that yellow and crack over time will turn buyers off. At Room Outside, we only use premium aluminium, timber, and high-grade uPVC systems that are built to last — and look the part.
4. Practical Living Space
It’s not just about views. A well-planned extension adds a genuine lifestyle benefit — whether it’s open-plan living, a garden room, dining area, or a home office. The more functional and flexible the space, the more desirable your property becomes.
5. Planning & Compliance
Even under permitted development, building regulations must be met — especially if removing walls or creating open-plan areas. A compliant, documented build reassures potential buyers and surveyors.
Why Not All Glass Extensions Are Equal
Let’s be honest: the internet is full of off-the-shelf conservatory kits and cheap builds. Although these might seem tempting, in reality they often do more harm than good:
- They often suffer from condensation and poor thermal control.
- The finish and integration with the home is usually poor.
- Buyers may factor in the cost of removal or upgrading.
Investing in a premium, bespoke solution from Room Outside is a far better long-term asset.
Summary: Is It Worth It?
YES — If the structure is well designed, high quality, and seamlessly integrated with your home.
NO — If it’s a low-cost add-on that lacks insulation, design harmony, or compliance.
Ready to Add Value the Right Way?
Our expert designers can guide you through every aspect — from thermal performance to planning and architectural balance.
Book a design consultation today.
Let’s create something beautiful, usable, and truly valuable.
