Blog Post
How Much Does a Hip-to-Gable Loft Conversion Cost? (Budgeting & Savings Tips)
One of the first questions homeowners ask when considering a hip-to-gable loft conversion is, “How much will it cost?” The answer depends on a few key factors, but understanding the typical price range and what affects it can help you plan confidently – and avoid costly surprises.
In this guide, we’ll break down average costs in 2025, what influences the price, and tips to keep your project on budget.
How Much Does a Hip-to-Gable Loft Conversion Cost in 2025?
For most UK homes, a hip-to-gable loft conversion costs between £35,000 and £55,000 in 2025. The exact figure depends on:
- Size and complexity: Larger spaces and intricate designs cost more.
- Location: London and the South East generally have higher labour costs.
- Specification: High-end finishes, en-suites, or bespoke features will increase the budget.
- Additional work: Structural changes, plumbing, electrics, or external access.
Tip: Request a detailed, itemised quote so you know exactly what’s included.
Cost Breakdown: Where Does Your Money Go?
Understanding how your budget is allocated can make it easier to prioritise:
| Category | What’s Included |
|---|---|
| Fixtures & Fittings | Bathrooms, lighting, flooring, and decoration |
| Design & Planning | Architectural drawings, structural calculations, and surveys |
| Permissions & Approvals | Planning applications (if required) and building regulations compliance |
| Construction | Labour, materials, roof alterations, insulation, windows, and finishes |
Factors That Can Increase Costs
Be aware of these common price drivers:
| Factor | Why It Matters |
|---|---|
| Structural complexity | Weak existing structures needing reinforcement |
| Planning permission delays | Prolonged approval processes can add to costs |
| Scope changes | Altering the design mid-project can cause budget overruns |
Money-Saving Tips
A hip-to-gable conversion is an investment, but you can control costs without compromising quality:
| Tip | How It Helps |
|---|---|
| Plan Early | Finalise your design before work begins to avoid costly changes |
| Choose a Trusted Contractor | Prevents hidden costs—check reviews and ask for references |
| Consider Timing | Off-peak scheduling may save on labour costs |
| Combine Projects | Doing multiple home improvements at once can be more cost-effective |
Will It Add Value to Your Home?
Yes – most hip-to-gable loft conversions add significant value, often boosting your property’s worth by up to 20%. Not only do you gain extra space, but buyers see added bedrooms and bathrooms as a huge plus.
Thinking about the bigger picture?
Read our Complete Homeowner’s Guide to Hip-to-Gable Loft Conversions for benefits, process, and planning advice.
How Planning Permission Affects Cost
While many hip-to-gable conversions are covered under permitted development, needing full planning permission can add fees for applications, drawings, and possible revisions.
Find out if you’ll need it in our dedicated blog:
Do You Need Planning Permission for a Hip-to-Gable Loft Conversion?
Ready to Transform Your Home?
A hip-to-gable loft conversion could be the perfect way to gain the extra space you need without the stress of moving.
Call Andreas on 07828 225 872
Email: andreas@markenlofts.co.uk
For advice on a loft conversion or for a free survey call 0800 111 4883 or enquire online:
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