Considering adding an extension to the front of your house? A front house extension can provide much more than extra space, it can dramatically improve your property’s curb appeal, functionality, and overall value. Whether you want a spacious porch, a larger living room, or even a two-storey addition, the right extension can completely transform your home’s appearance and usability.
This guide covers everything you need to know before starting your project, from UK-specific planning permission rules and average costs, to the most common types of extensions and essential best practices. By the end, you’ll have a clear understanding of what’s involved and how to plan effectively for a successful outcome.
Benefits of a Front House Extension
Adding a front extension comes with a range of advantages that go beyond aesthetics:
1. Extra living space and increased functionality: Create a larger lounge, extend your kitchen, or add a porch for storage and shelter.
2. Enhanced curb appeal and home value: A well-designed front extension can modernise the look of your home and boost resale value.
3. Customisation and personalisation options: Tailor the extension to suit your lifestyle, whether that’s a bay window reading nook or a striking double-storey facade.
Pro tip: If you’re unsure what design fits your home, we can walk you through real case studies and 3D visualisations before you commit.
For a full breakdown of what’s involved, explore our House Extension service. If you’re budgeting, you may also find it useful to review our House Extension Cost Guide for detailed price ranges across the UK.
Types of Front House Extensions
1. Porch Extensions
A porch extension is one of the most affordable ways to improve your home’s entrance. It offers weather protection, extra storage for coats and shoes, and a welcoming first impression.
- Typical cost: £3,000–£8,000 depending on size and materials.
- Timeframe: Usually completed in 1–3 weeks.
- Best for: Semi-detached and detached homes with enough front garden space.
2. Single-storey Front Extensions
A single-storey extension can significantly expand your living space without the complexity of adding another level. These are often used to enlarge a lounge, create an open-plan kitchen/dining area, or add a home office.
- Typical cost: £1,800–£3,000 per m² in most UK regions; £2,500–£3,500 per m² in London.
- Timeframe: 8–12 weeks depending on size and finish.
- Key factors influencing price: Roof type, glazing options, and material choices.
3. Double-storey Front Extensions
This type of extension offers the most space but comes with higher costs and stricter planning regulations. It can add new bedrooms upstairs while expanding living space downstairs.
- Typical cost: £2,500–£4,000 per m², with London projects at the higher end.
- Timeframe: 12–20 weeks.
- Best for: Detached and some semi-detached homes with strong foundations and suitable plot size.
Planning Permission for Front House Extensions in the UK
Front extensions are more likely to require planning permission than rear ones because they alter the street-facing appearance of your home. While some small porches may be allowed under permitted development rights, there are strict limitations.
You will need planning permission if:
- The extension is more than three metres high or extends beyond the front wall of the original house.
- Your property is in a conservation area, national park, or other protected zone.
- The total footprint increase exceeds permitted development allowances.
Submitting applications involves:
- Consulting your local council’s planning department for guidance.
- Preparing detailed drawings and plans from an architect.
- Completing the online application through the Planning Portal and paying the standard fee.
Average Costs of Front House Extensions in the UK
Cost breakdown by type:
- Porch extensions: £3,000–£8,000
- Single-storey front extensions: £1,800–£3,000 per m² (£2,500–£3,500 in London)
- Double-storey front extensions: £2,500–£4,000 per m²
Additional costs to factor in:
- Professional fees: This typically includes architects, structural engineers, and surveyors. When handled separately, these can be significantly more expensive, but with us, all these experts are in-house for better value and seamless coordination.
- Planning permission fees and building control inspections: Required for most projects, these are paid directly to your local authority. We guide you through the process and ensure all drawings and specifications meet council requirements.
- Interior finishes, fixtures, and fittings:From flooring and lighting to bespoke cabinetry, these costs vary depending on your style, material choices, and quality preferences.
- Regional variations:
- Building costs in London and the South East can be up to 30% higher than in northern England, Wales, or Scotland.
Important Factors to Consider Before Extending
Before you break ground, it’s important to think through:
1. Property boundaries and neighbour relations: Ensure the extension won’t encroach on shared access or violate boundary lines.
2. Architectural integration: Use materials, proportions, and roof styles that match the existing house.
3. Impact on property value: A well-planned front extension can boost resale value, but an awkward or oversized design may have the opposite effect.
4. Practical considerations: Check drainage systems, underground utility lines, and foundation strength before finalising plans.
Best Practices for a Successful Front Extension Project
1. Always consult your local authority early to avoid surprises.
2. Work with experienced, vetted contractor like Kova Interiors, who have delivered similar projects.
3. Set a realistic budget and include contingency funds for unforeseen issues.
4. Maintain open communication with neighbours and contractors throughout. We handle every step from concept to completion, meaning you’ll only need to deal with one point of contact instead of juggling multiple trades.
Final Thoughts
A front house extension can be one of the most rewarding investments for your home, both in terms of lifestyle and financial return. The key to success lies in careful planning, choosing the right professionals, and setting a realistic budget from the start.
With the right team like Kova Interiors, the process doesn’t have to be stressful. If you’d like expert guidance, fixed pricing, and a seamless build experience, we can help bring your vision to life while keeping your project on time and budget. Contact us today.
FAQs
Do you need planning permission for a front house extension in the UK?
Yes, in most cases, especially if it extends beyond the front wall or exceeds permitted development limits. Small porches may be exempt.
How much does a front extension typically cost in the UK?
From £3,000 for a small porch to £4,000 per m² for a large double-storey extension in London.
Will a front extension increase my property’s value?
Yes, especially if it adds usable space and improves kerb appeal, increases of 5–15% are common.
How long does it take to build a front extension?
Anywhere from 2 weeks for a porch to 20 weeks for a double-storey project.
Can neighbours object to my front house extension?
Yes, during the planning process, they can raise objections. Good communication and design adjustments can help mitigate this.