Altrincham, Manchester Office
Office 249, Peel House, 30 The Downs, Cheshire, Altrincham WA14 2PX
Tel: 0161 710 4160
Email: Studio@ExcelaArchitecture.co.uk
Altrincham, Manchester Office
Office 249, Peel House, 30 The Downs, Cheshire, Altrincham WA14 2PX
Tel: 0161 710 4160
Email: Studio@ExcelaArchitecture.co.uk
Here at Excela Architecture London we specialise in Design and Build Home Extensions in London. If you need more space but don't want the hassle of moving then a home extension could be the perfect option for you. We manage the whole process from design to construction.
Design and Build London
For clients seeking peace of mind, our architect-led Design & Build service offers a complete solution.
Our design and build service for Home Extensions provides a seamless, all-in-one solution for London homeowners looking to extend their homes. From initial concept through to final construction, we manage every stage of the process. The London home extension market requires precision, creativity and in-depth knowledge—qualities our experienced team brings to every project to ensure outstanding results.
Home Extension Architects
At Excela Architecture London, our design and build service offers a streamlined, end-to-end solution for homeowners looking to extend and enhance their living space. By combining architectural design and construction under one contract, we ensure a more efficient, cost-effective, and coordinated process from start to finish.
Our team of experienced London architects and trusted contractors work closely with you to bring your vision to life—balancing aesthetic goals with functional design, budget, and local planning requirements. Whether you're expanding your home with a single or double-storey extension, we’ll guide you through every stage to deliver a result that truly adds value and quality to your home.
Design & Build Home Extension Architects
At Excela Architecture London, our aim is to provide our clients with cost-effective Design and Build service for your home extension. We provide fixed price cost effective architect fees for Single Storey Home Extensions, Double Storey Home Extensions, Wrap Around Home Extensions throughout London and surrounding areas.
Adding a single storey home extension with a new kitchen or open plan living area can add between 10% to 15% value to your home.
A Design & Build Double Storey Home Extension is a perfect option to transform your existing home. Adding a Double storey Home Extension can easily create Living Space on the ground floor and add an addition bedroom upstairs.
A Double storey Home Extension will extend the space and size of your home on both floors.
Opting for a Double Storey Home Extension will not only create the extra living space your family need, but it will also increase the value of your home.
When it comes to maximising your home with a Design & Build home extension, a Wrap around Home Extension can unlock the full protentional of your home.
A Wrap around Home Extension designed by our London Architects at Excela Architecture London
A Wrap around Home Extension can be either a single storey home extension or a double storey home extension.
The London Design & Build Process
Every design & build home extension project starts with an initial design consultation, this is the first and most crucial step of a project. We will discuss with you your project requirements and ideas and review your existing building or site for potential design proposals.
We then review planning considerations along with exploring potential construction techniques and architectural design styles.
During the initial design consultation, we will make notes about your project to produce an architectural design brief in line with your project requirements.
Once we have discussed your project in detail during the initial design consultation, we will provide you with a fee for our architectural services.
Once appointed, our surveyor will visit your home or site to carry out an extensive measured survey using a 3D Laser Scanning Machine to record the existing layout of your property or site.
After the site survey is complete, we will produce existing information architectural floor plans and elevations of your property. This is a vital step in the architectural design process as the existing information plans form the foundation for all of the design proposals.
You will receive the existing plans in PDF format once they have been completed.
After your initial consultation, our local London architects begin the design phase of your project —translating your ideas into thoughtful, practical design concepts. Through collaborative design reviews and feedback sessions, we refine every detail to align perfectly with your vision. Once the design is finalised and approved, we move seamlessly into the detailed planning stage, ensuring full compliance with building regulations and securing all necessary planning permissions to keep your home extension project moving forward without delay.
Throughout the concept design stage, we offer unlimited design revisions and you are able to make as many design changes as you require until you are 100% happy with the final design.
Once your home extension design is finalised, our expert design and build contractors take the lead on construction—bringing your vision to life with precision and care.
Our dedicated project management team oversees every detail of the build, ensuring the work stays on schedule, meets high-quality standards, and any potential issues are resolved quickly and efficiently. At Excela Architecture London, we make the construction process as smooth and stress-free as possible.
Our team of creative architects will guide you through the design process of a house extension from Concept Design to Planning Application then to Building regulations drawings and Construction issue drawings. We strive to create beautiful houses to allow you to feel truly at home.
Benefits of Choosing a Design and Build Company
Cost Efficiency & Transparency
With Excela Architecture London’s design and build approach, you benefit from a clear and predictable cost structure from the outset. By managing both the design and construction under one roof, we provide an accurate, all-inclusive quote early in the process—minimising the risk of unexpected costs and keeping your home extension project on budget from start to finish.
Faster Project Delivery
Our integrated design and build process allows for seamless collaboration between architects and construction teams from day one. This close coordination ensures a smoother transition from design to construction, helping us avoid delays and accelerate timelines. Compared to traditional methods—where design and construction happen separately—our approach significantly reduces project duration, so you can enjoy your new space sooner.
Improved Communication & Coordination
With our design and build model, communication flows seamlessly between our architectural and construction teams. This close collaboration ensures that every detail is clearly understood, allowing for faster decision-making and smoother problem-solving. Any changes or adjustments can be implemented quickly and efficiently—minimising disruption and keeping your home extension project on track.
Start Your Project with Confidence
Starting a home extension project requires thoughtful planning and informed decision-making. One of the most important steps is choosing a design and build firm that offers honest, transparent pricing—steering clear of unrealistic quotes or hidden costs. At Excela Architecture London, we pride ourselves on providing clear, upfront cost structures so you know exactly what to expect from day one.
We also encourage potential clients to explore our reviews and project case studies. These real-world examples highlight our consistent delivery, quality craftsmanship, and client satisfaction—giving you confidence in choosing a partner you can trust.
Excela Architecture London House Extensions
Design & Build Home Extension Architect Services in London
We have a dedicated team of expert home extension architects that provide our clients with exceptional design options.
Our expert team will guide you through the process of converting your home extension project from survey to planning approval and building control approval.
At Excela Architecture London we provide you with 3D interior and exterior Photo Realistic CGI Visuals for your project.
3D Architectural CGI visuals are great for both homeowners, planning officers and building contractors to truly visualise the project in detail.
Providing a 3D visual with your home extension planning application can be helpful to illustrate the proposed works to the planning officer.
Once your London Home Extension planning application is approved we will produce the Technical drawings for your project. The building Regulations Drawings & Construction Drawings will be used by Building control to certify the works and will also be used by the builders to carry out the building works.
House Extension Ideas
If you are looking at building a home extension in London, there is a range of different home extension design ideas for you to choose from. A two storey home extension will allow you to create the extra space you need for your family. At Excela Architecture London we work with you to create design options to ensure your new home extension fits in perfect for you and your family. With a double storey extension you can create another bedroom or even two bedrooms, which will give you the space you would really need without looking for a new house. Extending your current home rather than moving will mean, you can stay in the house that you have made into your home whist still getting that extra space. A two storey extension will also allow you to make the current layout of your home more spacious both upstairs and downstairs by opening up rooms into your new home extension. Downstairs, you can make the most of the new space from your double storey extension to create a spacious living space or you can create an open-plan kitchen with new appliances and a bespoke design for entertaining. When adding a two storey extension to your home, you can not only create that extra space that your really need but also add value to you home at the same time. If you decide to move house in the future, you know that your home extension will help maximum the value of your home. If you would like to find out more about how we can help you with a double storey extension, don’t hesitate to contact our professional and helpful team. We are happy to answer any queries you may have and get you started with your two storey extension.
Why Choose Us For Your Home Extension Project?
A two storey extension is one of the more complicated ways of adding value to your home, however, the benefits of a home extension can be life-changing. Not only will a double storey extension you increase the value of your home overall, but it will also create that much needed extra space! We are firm believers that anything is possible, and with over 13 years of experience and a huge number of successful projects delivered. We specialise in Altrincham and Cheshire house extensions, and with our experience, we work directly with planning officers, builders and interior designers to build working relationships. We truly believe that nothing is impossible and our like-minded architects will guide you through the choices to deliver you the very best design for your two storey extension. If you are looking for two storey extension ideas, get in touch today to see how we can help you. Our Architect team will support your through all stages of a home extension project from the initial concept design to detailed building regulations and construction issue drawings. We can help you obtain quotations from our local, fully vetted builders and building contractors who offer competitive build quotes. No matter the size of your two storey extension, Excela Architecture is here to help. Following an initial phone consultation, one of our building surveyors will visit your property to carry out a measured building survey of your current home. At this stage, we will work with you to develop a design brief for your new project to ensure that we create design solutions that aligns perfectly with your needs and the requirements. Contact us today to organise a FREE initial consultation and receive a personalised quote for your two storey extension architectural services!
Double Storey Side and Rear Extensions
There are many types of two storey extensions to choose from depending on your property type,: 1. Two Storey Rear Extension – This type of project is for any property type, however, Local planning authorities often are quite strict with two storey rear extensions, especially if you are situated in a dense residential area. An experienced architect will give you the best advice to navigate your council’s two storey extension policies and grant you the best outcome possible. Rear Double Storey Extension – Expanding your home’s footprint into your rear garden space with a rear double storey extension offers a multitude of possibilities for increasing living space and improving the functionality of your home. The rear double storey extension involves building up and out simultaneously, providing ample room for additional bedrooms, bathrooms, or a larger living area. 2. Two Storey Side Extension – This type of project is for con only done on detached and semi-detached properties depending on the space to the side of the property. A two storey side extension is a great way to utilise the unused space to the side of your property to create additional habitable space such as an extra living space or bedroom. Alternatively, you may wish to have a garage on the ground floor of your two storey home extension with an additional bedroom above. Whether you are wanting to add an extra bedroom or home office or garage our two storey extension architects are on hand to give you the best advice and maximise the potential of your new project. Double Storey Side Extension – The double storey side extension is similar to the regular two storey side extension but it involves extending both floors of your property sideways. It offers even more space for additional rooms or functionalities. Planning permission and adherence to local building regulations are crucial for this type of extension, and consulting with professionals, like us at Excela Architecture, who specialise in the design of a double storey side extension is highly recommended to ensure the project’s success If you would like to learn more about Excela Architecture can helps with your new double storey extension contact us today.
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