Across Oxfordshire, Berkshire, and the Cotswolds, homeowners are redefining what it means to live well in the countryside. Whether you’re dreaming of a striking new build on a private plot or a character-rich extension to a period home, one question always comes first:
What will it actually cost?
At Black Swan Architecture, we believe transparency is the foundation of successful design. When you understand what to expect from the start, you can make confident decisions and invest meaningfully in a space that enhances both your lifestyle and your property.
Tailored Design. Transparent Pricing.
No two homes or homeowners are the same. But having a sense of key cost ranges helps guide your early vision:
- House Extensions: £1,800–£3,500 per m² depending on complexity and finish
- New Builds: £2,000–£4,000 per m², with high-end rural homes trending toward the top
- Architectural Services: Typically range from 7–15% of the build cost, tailored to the scope and demands of your project
With in-house full-service capabilities, from concept design to project completion, we lead with a client-focused approach, structuring our services around your priorities to ensure you stay in control of your budget at every stage.
What Factors Influence Your Project Cost?
Beyond square footage, several factors shape the total investment:
- Site Conditions: Rural access or sloped land may increase groundwork costs
- Materials: Hand-knotted Cotswold stone, reclaimed oak, zinc cladding, for example
- Sustainability Features: Solar gain glazing, ground source heat pumps, etc.
- Internal Finishes: Smart home tech, artisan plasterwork, and bespoke joinery
We design around what matters most to you. Whether you envision an entertainer’s dream kitchen, home gym, or spa-inspired bathrooms, our focus is aligning design with your daily life.
Avoiding the Hidden Costs
It’s easy to be caught off guard. That’s why we identify hidden costs upfront, including:
- Planning application and building control fees
- Utility upgrades or new connections
- Party wall and environmental surveys
- Landscaping and external works
- VAT (generally applicable to extensions, but new builds may be zero-rated)
We also connect you with trusted consultants as needed, reducing surprises and keeping your project on track.
Budget Smarter. Build Better.
We help you make well-informed choices by:
- Providing up-to-date pricing throughout the design phase
- Value engineering without compromising quality
- Recommending builders known for staying on time and on budget
With Black Swan Architecture, you can expect creative flair balanced with meticulous planning – a trusted formula that delivers enduring quality.
Let’s Talk Budget and Bringing Your Dream Vision to Life
If you’re planning a new build or extension in Oxfordshire, Berkshire or the Cotswolds, we’re here to help. Whether it’s a sleek, contemporary countryside retreat or a bold reimagining of heritage architecture, we’ll work with you to shape a project that’s as practical as it is beautiful.
Book your free consultation today to explore what’s possible and what it’s likely to cost with clarity, creativity and confidence.