If you’re thinking about a garage or loft conversion in Bournemouth, Poole, or Christchurch, understanding the costs involved is key to staying on budget and avoiding unexpected expenses. Whether you’re adding an extra bedroom, a home office, or a stylish new living space, this guide breaks down the typical costs and offers budgeting tips to help you plan effectively.
1. What Affects the Cost of a Garage or Loft Conversion?
Several factors influence the total cost of a conversion, including:
✅ Size & Complexity – Larger spaces or those requiring structural changes will cost more.
✅ Planning & Regulations – Some projects need planning permission, adding to costs.
✅ Materials & Finishes – High-end finishes will increase the price.
✅ Labour Costs – Hiring experienced professionals ensures quality but impacts the budget.
✅ Additional Features – Plumbing, electrics, insulation, and windows contribute to the total cost.
2. Cost Breakdown for Garage & Loft Conversions
Here’s an approximate breakdown of costs for a standard conversion in the UK:
🏡 Garage Conversion Costs
💰 Basic Garage Conversion (Single Garage) – £7,000 – £15,000
💰 Double Garage Conversion – £15,000 – £25,000
💰 High-End Garage Conversion (Bathroom, kitchen, premium finishes) – £25,000+
🔹 Cost Includes: Flooring, insulation, windows, electrics, plastering, and finishing.
🔹 Potential Extras: Heating installation (£500 – £1,500), plumbing (£1,000+ for a bathroom).
🏠 Loft Conversion Costs
💰 Basic Loft Conversion (Velux windows, insulation) – £15,000 – £25,000
💰 Dormer Loft Conversion (Adds headroom & space) – £30,000 – £50,000
💰 Hip-to-Gable or Mansard Conversion (Structural changes) – £50,000 – £70,000+
🔹 Cost Includes: Structural work, insulation, windows, staircase, electrics, and plastering.
🔹 Potential Extras: En-suite bathroom (£3,000 – £6,000), skylights (£500 – £1,500 each).
3. Budgeting Tips to Stay on Track
💡 1. Get a Fixed-Price Quote – Work with a reputable contractor offering a fixed-price contract to avoid unexpected costs.
💡 2. Plan for Extras – Set aside 10-15% contingency for unforeseen expenses.
💡 3. Prioritise Essentials – If you’re on a tight budget, focus on structural work first and add finishes later.
💡 4. Check Planning Requirements – Some conversions need planning permission, which can add costs and time.
💡 5. Compare Material Costs – High-end materials can significantly increase the budget, so shop around for the best deals.
4. Avoiding Hidden Costs
🚧 Structural Issues – Older properties may need reinforcements, adding to costs.
⚡ Upgrading Electrics – If your home’s electrical system needs upgrading, this could cost £1,500 – £3,000+.
🏗 Access Challenges – If your loft is difficult to access, additional scaffolding or structural changes may be needed.
5. Why Choose The Big Conversion Company?
At The Big Conversion Company, we offer transparent pricing, expert craftsmanship, and a stress-free process from start to finish. Based in Bournemouth, Poole, and Christchurch, we specialize in garage and loft conversions that add value and functionality to your home.
📞 Get a Free Quote Today! Contact us at 01202 090333 or visit our website to start planning your dream conversion.