House Extension Architects in West London
Looking to add more space, functionality, and value to your home without moving? Our bespoke house extension services are designed to help you unlock the full potential of your property — whether through a rear extension, side return, wraparound, or double-storey addition.
At Lucia Piccinini Arkinnovation, we specialise in energy-efficient residential architecture, blending practical design, planning expertise, and sustainability. From period terraces in London to detached countryside homes, we create inspiring extensions tailored to your lifestyle, property, and long-term goals.
Optimising Space
Extending your property offers a multitude of benefits. Firstly, it provides increased living space, catering to a larger kitchen, dining area, or an extra bedroom, enhancing comfort for your family. This extra area can be customized to match your specific needs, from home offices to playrooms. Furthermore, such extensions notably boost property value, making it more appealing to potential buyers if you choose to sell.
Personalization is another perk, allowing you to design according to your taste. Ample windows in well-planned extensions usher in natural light, connecting indoor and outdoor spaces harmoniously. By extending, you can avoid the hassle of moving, enjoying cost-effective solutions that optimize existing infrastructure while ensuring a quicker project completion time.
What’s Included in Our House Extension Architecture Service
1. Initial Consultation & Feasibility Study
We begin by understanding your needs, site conditions, and goals — from kitchen-diners to open-plan living areas. We’ll advise on budget, planning routes, and potential return on investment (ROI).
2. Measured Survey & Site Assessment
Our team conducts a full survey of your property, capturing accurate measurements and existing conditions to inform the design process from day one.
3. Planning Permission & Building Regulations
We manage all the approvals you need for a smooth extension project, including:
- Permitted Development Rights
- Full Planning Applications (including conservation areas)
- Party Wall Agreements & Building Control
- Sustainability requirements like EPC, SAP, or Passivhaus guidance
4. Concept Design & 3D Visuals
We create design proposals tailored to your home’s character and your personal taste, including:
- Functional floor plans and elevations
- 3D views and layout options
- Natural light strategies, material palettes & finishes
5. Detailed Technical Design
Once your preferred concept is approved, we develop full technical plans for construction, working closely with:
- Structural Engineers
- M&E Consultants
- Interior Designers (optional)
- Quantity Surveyors (if needed)
6. Tender & Builder Selection
We support you in finding the right contractor, managing the tender process and ensuring cost transparency.
7. On-Site Project Oversight
During construction, we:
- Attend site visits
- Coordinate with your builder and consultants
- Monitor timelines, quality and respond to design changes
8. Final Sign-Off & Handover
We ensure successful project closure with:
- Final inspections and snagging
- Building Control approval
- Handover documentation and warranty support
Transform your property and embrace a lifestyle of possibilities. Explore the potential of project extension with me and turn your current space into a canvas of innovation and utility.
Who It's For:
- Homeowners who want to expand rather than relocate
- Property investors looking to enhance value before resale
- Landlords upgrading homes for better rental yield
- Growing families in need of modern, connected living spaces
Why House Extensions Matter
A well-designed extension can:
- Increase your home’s value by 15–50%
- Improve your energy performance and natural light
- Help you avoid moving costs and stamp duty
- Create space that’s tailored to modern family life
- Simplify planning with expert architectural support
Why Choose Lucia Piccinini Arkinnovation?
Clients choose us because we combine creativity with technical precision:
- Residential Design Specialists in house extensions & refurbishments
- Sustainable Experts focused on energy-efficient, net-zero design
- Start-to-Finish Support for total peace of mind
- Clear Communication and proactive collaboration throughout
Ready to Extend Your Home?
Email: hello@luciapiccinini.com
Call: +44 7760 639338
Click the button below to book your consultation and discover the best way to expand your home today.
Planning permission or permitted development?
Many single-storey rear extensions can be built under permitted development, typically up to 3 metres deep on semi-detached and terraced houses, or up to 6 metres through the prior approval process. Flats, listed buildings and many homes in conservation areas do not have these rights, and Article 4 directions (common in Chiswick, Kensington and Fulham) can remove them. We confirm the right route for your home before design starts, and apply for a lawful development certificate where it gives you certainty.
Extensions to period, listed and conservation-area homes
Much of West London is protected. We design side-return, rear and wraparound extensions that sit comfortably against Victorian and Edwardian terraces, and we prepare the heritage statements and listed building consent applications these homes need.
Where we work
Chiswick · Chelsea and Fulham · Kensington and Notting Hill · Wandsworth, Clapham and Battersea · Twickenham and Teddington · Hammersmith · Ealing · Richmond
Need drawings only? See planning and building regulations drawings.
Frequently asked questions
Do I need an architect for a house extension?
It isn't a legal requirement, but an architect makes the most of your space and budget, improves your chances of planning approval, and produces the technical drawings builders need to price accurately.
How long does a house extension take in London?
Allow roughly 2 to 4 months for design and approvals and 3 to 6 months on site for a typical single-storey extension, depending on complexity.
Can I build an extension without planning permission?
Often yes, under permitted development, but not for flats, listed buildings or where rights have been removed by an Article 4 direction. A lawful development certificate gives certainty.
Can you extend a listed or period house?
Yes. We design extensions for listed homes and properties in conservation areas, and prepare the listed building consent and heritage statement needed.
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