Residential Architecture in London Tailored to Your Lifestyle
From Concept to Completion – Transforming Homes Across London & Surrey
Residential Architecture Services Designed Around You
From Concept to Completion – Transforming Homes Across London & Surrey
Residential Architecture London
At Happy Building, we’re local residential architects in London specialising in design-led residential architecture that’s practical, beautiful, and built around your lifestyle. Whether you’re planning a new build home, a house extension, or a complete renovation, our in-house team of London residential architects and designers work with you from the first sketch to the final handover.
We combine creative architectural design, planning expertise, and construction management under one roof. This means faster timelines, greater accountability, and complete peace of mind for homeowners across London and the South East.
Local Residential Architects Who Understand Your Vision
At Happy Building, we specialise in residential architectural design that’s practical, beautiful and tailored to your lifestyle. Whether you’re planning a new build, a home extension, or a complete renovation, our in-house residential architects and designers work closely with you from the very first sketch to the final handover.
We’re not just architects – we’re project managers, designers, and construction partners under one roof. That means faster timelines, greater accountability, and fewer headaches for you.
What We Do
From concept to completion, we provide a seamless residential architectural and construction service in London, combining creativity, precision, and professionalism to bring your vision to life.
Our London-based residential architects specialise in house extensions, home renovations, and new build homes, delivering projects that are both beautifully designed and perfectly built. Every design is tailored to your lifestyle and local planning requirements, ensuring a stress-free process from start to finish.
STEP 1
Design
Unlock your vision with bespoke architectural design services tailored to your goals. Our in-house RIBA-accredited architects and designers will discuss, advise, and create two unique concepts based on excitement, practicality, and cost-effectiveness. From concept sketches to detailed design, we develop plans that reflect your lifestyle and maximise your property’s potential.
STEP 2
Planning
Simplify your planning journey with our expert residential architects. Our proven 98 % planning approval rate means your project is in safe hands. We manage all applications, drawings, and communications with your local London planning authority, providing up to two revisions if required. We have extensive experience with conservation areas, listed buildings, and permitted development projects, ensuring your plans meet every regulation without compromising your vision.
STEP 3
Construction
Experience a seamless transition from design to build. Our construction team delivers each project with precision and care, ensuring the final build perfectly matches the original design intent. We oversee every detail, materials, craftsmanship, and quality control, so your new home, renovation, or extension is completed to the highest standard. With Happy Building, what we design is what we deliver.
What We Do
Design
Unlock your vision with the help of our expert architectural design services tailored specifically to your needs.
Our in-house RIBA accredited architects and designers will discuss, advise, design and deliver two creative concepts based on balancing excitement, practicality and cost-effectiveness.
Planning
Streamline your planning journey by trusting our expert team to take your project from design to construction.
Our remarkable record of 98% approved planning applications will put your mind at ease. Leave the necessary submissions to us, and we will provide up to two revisions to the planning proposal if required.
Construction
Experience peace of mind by letting us deliver your construction project with expertise and care.
We pride ourselves on achieving harmony between the initial design concept and the final project execution, meticulously attending to every detail until the culmination of our collaborative journey.
Why Choose Happy Building?
At Happy Building, we bring every stage of your residential architecture project in London under one roof, from architectural design and planning to construction and final completion.
Local and Trusted
Based in Cheam, we work with homeowners across London, Surrey, and nearby areas, trusted for our transparent communication and high-quality residential design.
Fully Integrated Team
Our design and build team in London includes architects, interior designers, and construction specialists, all working together for a smooth, efficient process.
Residential Experts
With decades of experience delivering house extensions, home renovations, and new build homes in London, we create spaces that are both functional and beautiful.
RIBA-Chartered Architects
Our RIBA-accredited residential architects are fully qualified, ensuring every design meets current London planning permission and building regulation standards.
Transparent Pricing
We provide clear, itemised quotes with no hidden costs, giving you confidence in your project’s budget from start to finish.
End-to-End Service
From architectural drawings to final completion, we manage your entire project with precision, professionalism, and care.
Our Portfolio
Click below to explore some of our recent residential architecture projects in London and Surrey. Each project showcases our fully integrated design and build approach, where we work closely with clients at every stage, from architectural design and planning to construction and completion.
Services We Offer
We’ve helped hundreds of homeowners across London and Surrey transform underused spaces into light-filled living areas, modern kitchens, open-plan layouts, and energy-efficient homes. Our residential architects in London combine creativity and technical expertise to design homes that truly work for the way you live.
Residential Architectural Design
Creative, functional residential architecture in London, designed around your lifestyle. From new build homes to renovations and refurbishments, every project balances innovation, comfort, and buildability.
Home Extensions & Loft Conversions
Expand your living space with seamless, well-integrated house extensions and loft conversions in London. Our architects design spaces that enhance natural light, flow, and everyday living.
Planning Applications & Building Regulations
Expert guidance through every stage of planning permission and building regulations in London. We manage all submissions and approvals, ensuring a smooth process from concept to consent.
Interior Design & Space Planning
Elegant, efficient interiors that balance beauty and practicality. Our London interior design team creates cohesive spaces that complement your architecture and lifestyle.
Construction Project Management
From start to finish, your London build is handled with precision and care. Our in-house construction management team ensures every detail meets our exacting standards of quality, time, and budget.
Why Choose Happy Building?
At Happy Building, we bring every stage of your project under one roof — from design and planning to construction and completion.
Why Choose Happy Building?
Local and Trusted – Based in Cheam, we cover London, Surrey, and the surrounding areas
Fully Integrated Team – Architecture, interior design & building all in-house
- Residential Experts – Decades of experience in home extensions, remodels & new builds
- RIBA-Chartered Architects – Registered, qualified, and up to date with all planning regulations
- Transparent Pricing – Clear quotes, no surprises
- End-to-End Service – From architectural drawings to completion
Services We Offer
- Residential Architectural Design
- Home Extensions & Loft Conversions
- Planning Applications & Building Regulations
- Interior Design & Space Planning
- Construction Project Management
We’ve helped hundreds of homeowners turn underused spaces into light-filled living areas, modern kitchens, open-plan layouts, and energy-efficient homes.
Our Portfolio
Click through below to discover some of our recent projects, all of which we worked with the clients throughout the whole process, from design, through planning, to build.
Book Your Free Consultation Now
Start your residential architecture project in London with confidence. We’ll walk you through your options, provide honest, expert advice, and show you how our design and build team can bring your dream home to life, whether it’s a house extension, renovation, or new build home.
Contact us
Book Your Free Consultation Now
We’ll walk you through your options, provide honest advice, and help bring your dream home to life.
Domestic Architects Near You
Whether you’re searching for a local residential architect, a domestic architect near me, or full design & build services, Happy Building is ready to help. We guide you through every stage – with full visibility on timelines, costs and progress.
‘It’s been a pleasure working with Geo on our home extension project, which includes a rear extension, a garage conversion and a complete refurbishment of the ground floor of our semi-detached house….. The whole design experience has been very smooth and we are very happy with how our project is taking shape.’
Architectural Design for extension in Sutton – Lorenzo, Jan 2023
Frequently Asked Questions
How much does a residential architecture project in London typically cost?
Every project is unique, but costs depend on the scale, specification, and level of service required. We provide transparent, itemised quotes so you can see exactly where your money goes. Whether you’re extending, renovating, or building a new home, we’ll align your design with a realistic build budget from the start.
Do I need planning permission for my project?
Not always. Some home extensions and loft conversions in London fall under permitted development rights. During your consultation, our architects will assess your property and advise whether you need planning permission or if your project qualifies for a simplified approval route.
How long does the whole process take?
Timelines vary depending on the project’s complexity and local council approval times. A typical London residential architecture project takes around 8–12 weeks for design and planning, with construction following soon after. We’ll provide a clear schedule and regular progress updates at every stage.
Can you help with the listed or conservation area properties?
Absolutely. Our architects have extensive experience working on heritage and conservation area homes across London. We’ll handle all documentation, liaise with local authorities, and create designs that meet planning requirements while respecting your property’s character.
Do you offer sustainability-focused design options?
Yes. We can integrate energy-efficient materials, insulation, and renewable systems into your home’s design to improve comfort and reduce long-term running costs. Sustainable design is part of our core approach to modern living.