HOUSE EXTENSION COMPANY
LONDON

We are Design & Build home and kitchen extension company in London specialising in Rear, Side Return, Wrap Around extensions. Our thorough tailor-made service combines planning, design stage through full completion.

DESIGN & BUILD HOUSE EXTENSION COMPANY

We are Design & Build home and kitchen extension company in London specialising in Rear, Side Return, Wrap Around extensions. Our thorough tailor-made service combines planning, design stage through full completion.

Who we are
Our RIBA chartered architects have extensive experience working in kitchen extensions, as well as constructing modern extensions and additional storeys. We work closely with the local Planning Authorities in London and pride ourselves in obtaining all permissions approved on time.

Our comprehensive approach delivers the finest results that are truly individual, transforming your ideas into breathtaking spaces.

How we work
Typically we arrange an on-site visit to understand your vision, and get a feel of the space we will be extending your home. We then go back to the drawing board and provide you with a couple of initial draft ideas, which we are confident will provide you with the inspiration to realise your unique vision.

If this sounds of interest, you can request a free consultation and we will get in touch to discuss your project.

A truly personal experience

Most architects and other companies which claim to be ‘design & build’ do not have the necessary in-house knowledge to accurately estimate the cost of a project until the initial design is complete. Usually, these companies rely on third party contractors to provide quotations which can result in budget creep, design amendments and delays. Our design & build process has been refined to deliver projects extremely efficiently with award winning results. Please feel free to contact us if you have a project in mind which you would like to discuss.

We work with you to create the space

you have always dreamed of and make it in to a reality.

BRIEF – We Begin by asking you to imagine you life in the completed house and to describe your desired interaction with it. We then analyse these descriptions in detail to give us a highly defined brief. This brief is then converted into a 3-dimensional simulation which is both revealing and informative, illuminating aspirations, requirements and patterns of habitation.

FORM – From this base, the formal expression emerges, facilitating the requirements of each client’s unique brief. The resulting spaces are easily read as a resolution of the challenges presented by brief and context.

This methodical process strips the design of style and preconceptions, resulting in a completely bespoke and personal design.

MATERIAL – Only once the form and spatial qualities of the design are clarified, we ask: Which materials lend themselves effectively and sustainably to the realisation of the design?

We believe that architecture should provide the backdrop for life and not take centre stage. Life itself is in full colour, so materials are used in their honest, natural state.

A truly personal experience

Our services designed to expand your space and built around your desired interaction with it. We will ensure to cover your aspirations, requirements and patterns of habitation.

Design Considerations

Roof Form

Flat? Pitched? Or a combination of both

Windows Types

Openable? Fixed? Sliding or folding?

Cladding Materials

Blend in or stand out? How will it look?

FROM CONCEPT TO COMPLETION

Our thorough tailor-made service combines planning, design stage through full completion. We can accommodate any home extension requirement in South West London.

  • FEASIBILITY STUDY
  • PLANNING APPLICATIONS
  • ARCHITECTURAL DRAWINGS
  • 3D MODELLING SERVICE
  • BUILDING REGULATIONS
  • INTERIOR DESIGN

Our Process

1. Site Consultation

The first step in the process is for us to fully understand what you want to achieve. Our approach is to carefully listen to your requirements so that we can design a solution that fits within your budget.

  • Discuss Initial Ideas & Identify Potential Issues
  • Establish Project Budget & Feasibility
  • Laser Measured Survey
  • Conduct Site Inspection

2. Conceptual Design & Estimate

The next step is to translate your ideas into a conceptual design. Our expertise in both design and construction means you’ll have an accurate estimate of costs and programme timescales early in the process.

  • Establish Scope of Works
  • Referral to Interior Design Team (if requested)
  • Quantity Surveyor Estimate
  • Create Master Programme
  • Sign Design & Build Agreement

3. Construction Drawings

Architectural drawings are then created for the relevant authorities and construction purposes. At this point in the process, accurate budget headings have already been established for the different components of the project.

  • Planning Application Submitted (if required)
  • Structural Engineer Calculations
  • Construction Drawings
  • Material Selections & Finishes Schedule
  • Full Scope of Works

4. Review & Construction Contract

A final review of the specifications takes place to allow our clients to refine the costs of each element of the project before proceeding to the construction phase.

  • Review Design & Scope of Works
  • Finalise Costs
  • Create Construction Programme
  • Sign Construction Contract
  • Payment of Deposit

5. Pre-Construction & Delivery

Before the construction phase can start, we’ll need to notify several parties to satisfy statutory obligations. We’ll coordinate everything and update you continuously via our phone application.

  • Applications to Relevant Authorities
  • Water Build Over Agreement
  • Party Wall Agreement with Neighbours
  • Site Set-Up
  • Weekly Site Progress Meetings
  • Phone App Communication

6. Sign-Off & Warranty

Upon completion of the project, you will retain 2.5% of the contract value for a 6 month period to ensure total satisfaction.

  • Obtain Relevant Documentation from Authorities
  • 2.5% Retention for 6 Month Snagging Period
  • Full Payment on Snagging Period Completion
  • Material Guarantees Manufacturer Specific

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Design & Build London – House extensions in London

Design & Build London experienced builders performing residential extension services in South West London and central London boroughs and surroundings.

At Design & Build London we employ high-calibre builders, Architectural designer, party wall planners & structural engineers providing high quality renovation services in side return extensions, double and single storey extensions, kitchen extensions and Victorian house extension in London.

Our all-in-one approach means to create and extend your home into better living space, by coordinating and supervising every aspect of a house or kitchen extension project.

We understand you are looking for house extension which is cost effective way, and planning to increase your usable floor space for better place to live. We will ensure to make the most of your investment, and to effectively plan your house extension, experience and our extensive years of expertise to be applied with detailed construction knowledge combining with fresh design ideas as well as having an understanding of your requirements.

Working with DBL …

We are a London-based Design & Build company dedicated to achieving timeless, elegant designs through careful consideration of scale, form and proportion.

Design & Build London work with RIBA Chartered Architects. Who comply with the strict criteria of the Royal Institute of Chartered Architects, covering insurance, health and safety and quality-management systems.  We offer conception to completion, incorporating concept design, planning negotiation, statutory approvals, contractor procurement and management on site.

We are early adopters of the latest technology, we use innovative 3D design and visualisation tools as a standard for all projects. Our experience shows that real-time visualisations and virtual reality are extremely efficient tools for choosing finishes, fixtures and fittings, and simulating natural light.

Our friendly, experienced, highly skilled team can take you step-by-step through the challenge of designing your new space. We’ll collaborate closely with you from the initial drawings, detail design and planning through tender and construction to the successful completion of your project. On time and on budget.

DELIVERING HIGH-QUALITY PROJECTS ON BRIEF, ON TIME AND WITHIN BUDGET.

We offer a wide range of build and refurbishment services and enjoy working on different project types and sizes. We construct new buildings, alter, refurbish, and remodel existing buildings, undertake basement excavations, loft conversions, and extensions and transform interior spaces.

We guide you through each step of your project from design to completion, allowing you to be involved as much or as little as you want.

We make it easier than ever to access quality design.

We have an incredible team of designers ready to prepare drawings, secure planning permission, and handle building regulations – to name just a few of our services. But 
this is just the start!

No matter the size of your project, or where you’re starting out, DBL has everything you need to unlock 
your home’s potential.

We guide you through each step of your project from design to completion, allowing you to be involved as much or as little as you want.

Net Promoter

93%

A standardised measurement of customer loyalty and the likelihood of a recommendation.

Client Retention

95%

of clients continue to use us for future construction or architecture projects.

Referrals

80%

of our work comes from word-of mouth recommendations alone.

Net Promoter

93%

A standardised measurement of customer loyalty and the likelihood of a recommendation.

Client Retention

95%

of clients continue to use us for future construction or architecture projects.

Referrals

80%

of our work comes from word-of mouth recommendations alone.

Kitchen and house extension company

Design & Build London is London’s leading house, kitchen and side return extension company. We design, manage and build a wide variety of bespoke extension projects; we offer services to extend your living space, with maybe a bigger kitchen, an extra bedroom, or simply a renovation to create more living space for your growing family. Whether it is with a rear home extension or a wrap-around kitchen extension, we will maximise the space in your home.

Design & Build London team can provide you with the extension in London that you desire, Our industry leading experience in quality builds is recognised throughout South West and Central London. Our in-house architectural designers and builders can not only enhance the beauty of your existing home – a quality rear extension will also add value to your property.

A home extension project within your budget will meet your need for extra living space, as well as enhancing the appearance of your home. Our home remodelling experts at Design & Build London are able to deliver a seamless transition from your property in London as it currently is, to the larger and more spacious home that you desire – and all within the contracted time frame, working with you throughout the process.

We would be happy to provide you with a free estimate, and then get started on your house extension – we are ready when you are!

Share your ideas with us, and we can make them become a reality.

Get in touch
We are always happy to chat. Contact us to arrange an initial meeting or you can use our project enquiry form.

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Brief Description of your project

Design & Build London Renovation Ltd
Hurlingham Studios,
Ranelagh Gardens,
Fulham,
SW6 3PA

T: +44 (0)20 3372 5366
F: +44 (0)20 3372 5366
E: info@designandbuildlondon.com