Home > Services > Home Extensions > Double Storey Extensions
Double Storey Extensions Services
A double-storey extension offers one of the most effective ways to increase both habitable space and accommodation within an existing home. By extending across two floors, homeowners can create additional ground floor areas while also adding bedrooms, bathrooms or other private spaces upstairs, making it an ideal solution for growing families or those planning for the future.
At Artist of Architecture, we design bespoke double-storey extensions that enhance both the functionality and appearance of residential properties. Every design is carefully developed to integrate with the existing home, ensuring the extension feels like a natural continuation of the original building while meeting your practical requirements and long-term aspirations.
As part of our wider Home Extensions service, each project is individually designed to maximise the potential of your property while responding to planning requirements, structural considerations and your lifestyle.
Is a Double-Storey Extension Right for Your Home?
A double-storey extension can provide substantially more accommodation than a single-storey addition while making efficient use of available land.
It may be an excellent option if you want to:
create additional bedrooms for a growing family
add an extra bathroom or en-suite
enlarge your kitchen and dining space
create a larger living or family room
introduce a dedicated home office
improve the overall layout of your home
future-proof your property for changing family needs
maximise the long-term value of your investment
Every property is unique, and the most appropriate solution depends on the existing building, available space, planning constraints and your individual objectives.
Design Possibilities
A well-designed double-storey extension provides the opportunity to improve the way an entire home functions rather than simply increasing floor area.
Depending on your property, a project may include:
larger open-plan kitchen, dining and family spaces
additional reception or sitting rooms
extra bedrooms
principal bedroom suites with en-suite bathrooms
family bathrooms
home offices or study areas
utility rooms and improved storage
improved circulation throughout the property
stronger connections between indoor and outdoor spaces
increased natural daylight through carefully positioned glazing and rooflights
Every design is tailored to the proportions, character and structure of the existing property to achieve a cohesive and balanced result.
Our Design Approach
Every successful extension begins with understanding how your home works today and how it needs to evolve in the future.
We take time to assess your property, understand your priorities and explore design opportunities that aim to improve both everyday use of your home and long-term value.
Throughout the design process we consider:
how new spaces integrate with the existing home
architectural character and visual balance
room proportions and circulation
natural light and views
structural feasibility
planning policy and design guidance
privacy and neighbouring properties
sustainability and energy performance
future flexibility and adaptability
Our aim is to create extensions that not only provide more space but also improve the overall quality and enjoyment of your home.
Why Choose Artist of Architecture?
Every home has its own character, opportunities and constraints.
✓ We develop bespoke architectural designs - that respond to the specific qualities of your property and the way you want to use your space.
✓ Complete architectural support - Our collaborative approach combines creative design thinking with technical expertise, helping homeowners navigate every stage of an extension project with confidence. From initial concepts through planning, technical design and construction support, we focus on delivering carefully considered solutions that enhance both the appearance and functionality of your home.
✓ Planning & Technical experience - Supporting clients with planning permission and building regulations application.
✓ Focus on long-term value - The aim is to create a home that functions better and remains enjoyable for years to come.
Planning and Technical Considerations
Because they alter the appearance and scale of a property more significantly than many single-storey extensions, double-storey extensions often require careful planning and technical coordination.
Important considerations may include:
planning permission requirements
permitted development limitations
conservation area or listed building constraints where applicable
overlooking and neighbouring amenity
structural design
foundations and load-bearing alterations
Building Regulations compliance
thermal performance and energy efficiency
drainage and utility services
Addressing these matters early in the design process helps reduce potential challenges later in the project and supports a smoother progression from concept to construction.
Our Design Process
Every double-storey extension follows a structured architectural process designed to guide your project from the initial idea through to construction preparation.
Our process typically includes:
Initial consultation
Site appraisal and feasibility assessment
Concept design development
Planning application preparation and submission where required
Technical design and Building Regulations drawings
Construction information and ongoing design support
To learn more about each stage, visit our Architectural Design Process ⟶ page.
Related Projects
See how carefully considered architectural design can help homeowners transform their properties through thoughtfully designed residential extensions.
Architecture Guides
If you're planning a double-storey extension, our Architecture Guides provide practical information about planning, residential design, technical considerations and preparing for an extension project.
Discuss Your Double-Storey Extension Project
Whether you're looking to create additional family accommodation, improve your existing layout or increase the long-term value of your property, a thoughtfully designed double-storey extension can provide lasting benefits.
If you're considering extending your home, we'd be pleased to discuss your ideas and explore the possibilities for your property. Contact Artist of Architecture to begin planning your double-storey extension project.
Are you considering a Double Storey Extension?
Book a free consultation to discuss your project.
Double Storey Extension Design Services London | Double Storey Extension Design Specialists | Double Storey Extension Design Studio | Double Storey Extension Architecture Firm | Double Storey Open Plan Design Expert | Double Storey Townhouse Transformation Architectural Studio | Double Storey Extension Projects Design Services
Disclaimer: The information on this website is provided for general informational purposes only and does not constitute legal, planning, architectural, or professional advice. Planning requirements, costs, and timescales can vary depending on the property, project, and site-specific circumstances. While every effort has been made to ensure accuracy, no guarantee is given that the information is complete, current, or applicable to your situation. For advice specific to your property and project, please contact Artist of Architecture directly.