Want to create extra space in your London home? A loft conversion in London could be your golden ticket. Growing your family? working from home more? Simply wanting to increase your property value? Converting that unused attic space is a smart move.
We at Richmond Traders help homeowners across the capital bring their loft visions to life: on time and within budget. But what does a loft conversion actually include? How much does a loft conversion cost in London? And what makes one loft conversion company in London better than the rest?
Let’s understand everything you need to know.
Why Consider a Loft Conversion in London?
To tell the truth, Property prices in London are very high. Shifting to a larger home may not be financially achievable, but creating more space with a loft conversion is a smart and budget-friendly alternative.
Here’s what you gain:
- Extra bedroom. Home office. Gym space
- Increased property value (up to 20% in some areas)
- Avoid costly moving fees and stamp duty
- More natural light and better ventilation
Living in North London? South East London? Anywhere in between? A loft conversion in London can completely upgrade your home: • Adding valuable space • Boosting functionality • Increasing property value
How Much Does a Loft Conversion Cost in London?
Let’s get to the big question: how much is a loft conversion in London?
While costs can differ, here’s a general guide:
| Type of Loft Conversion | Average Cost in London |
| Basic Velux Conversion | £25,000 – £35,000 |
| Dormer Loft Conversion | £35,000 – £55,000 |
| Hip-to-Gable Conversion | £40,000 – £65,000 |
| Mansard Conversion | £45,000 – £70,000+ |
Factors impacting the cost of a loft conversion in London include:
- Size of the space
- Type of roof
- Required planning permissions
- Structural changes
- The finishes you choose
We at Richmond Traders offer free consultations and detailed quotes so you’ll know how much a loft conversion costs in London before you commit.
Types of Loft Conversions
Dormer Loft Conversion London
It is one of the most famous options, a dormer loft conversion adds a box-like extension to your existing roof and creates full-height walls and lots of space. It is perfect for an extra bedroom with an ensuite.
Velux (Rooflight) Loft Conversion
This is by far the most budget-friendly option. We simply add windows and insulation to your existing loft space. It is ideal if you already have decent head height.
Mansard Loft Conversion
It is often found in Central and North London loft conversions. This option completely alters one side of the roof for maximum space and a modern finish.
Hip-to-Gable Conversion
If your home has a sloping side (hip), we convert it to a vertical wall (gable) to gain additional room. It is perfect for semi-detached or end-of-terrace homes.
What Services Do Loft Conversion Companies in London Offer?
We at Richmond Traders are not just builders: we are loft conversion specialists in London. Let’s look at what we bring to your project:
- Architectural design and planning
- Structural calculations and drawings
- Planning permission and building regulations
- Construction and project management
- Finishing touches: Flooring. Lighting. Paint
We manage everything from loft conversion drawings in London to final sign-off! So you don’t have to chase multiple contractors or agencies.
Do You Need Planning Permission?
Most loft conversions in London come under Permitted Development Rights, especially Velux and small dormer conversions. However, if your property is:
- In a conservation area
- A flat or maisonette
- Planning a Mansard or large dormer extension
…you may need planning permission. Don’t worry! We’ll guide you through the loft conversion rules in London and sort all the paperwork for you.
Choosing the Right Loft Conversion Company in London
With so many loft conversion companies in London, how do you choose the right one?
Here’s why homeowners choose Richmond Traders:
- Local experience in handling loft conversion plans London
- Transparent pricing: no hidden surprises
- Skilled tradespeople and qualified project managers
- Ongoing communication and support
- Strong reputation across London loft conversion reviews
From loft conversion builders in London to full-service design and build: We do it all.
Loft Conversion London: Adding Value
A well-designed loft conversion can notably increase your property’s resale value. Estate agents across London confirm that a spacious and bright loft with an ensuite can add £50,000 or more to the price of your home.
Thinking about how much value a loft conversion adds in London? It depends on your location and finish; it could be 15-20%.
Think of it not just as an expense, but as an investment.
FAQs: Loft Conversion in London
1. How much does a loft conversion cost in London in 2025?
Costs range from £25,000 to £70,000+. It depends on the type and complexity of the conversion.
2. What’s the most affordable loft conversion?
A Velux loft conversion is the most affordable because it requires the least structural change.
3. Do I need planning permission in London?
Not always. Many projects come under Permitted Development. We’ll confirm based on your home and plans.
4. How long does a loft conversion take?
Most lofts take 6–10 weeks from start to finish. Larger projects may take up to 12 weeks.
5. Can you do loft conversions in flats?
Beyond any doubt! But it generally requires planning permission and freeholder approval.
6. What areas do you cover?
We cover all areas, including North London, South East London, and beyond.
Final Thoughts: Is a Loft Conversion Right for You?
If your question is “how much is a loft conversion in London?” There is a good chance you are already dreaming of the additional space. No matter, for guests? Work? Growing kids? A London loft conversion is one of the best ways to expand your home without moving.
Richmond Traders is your trusted partner for everything from pricing and planning to absolute execution. We’ve helped numerous of homeowners just like you to turn dark attics into bright and functional living spaces.
