Interior Architects London

Scenario has built a leading architecture practice restoring, enhancing and extending period homes throughout London. We take a unique approach to residential interiors, marrying contemporary lines with heritage details. Over a decade, we’ve worked with clients who appreciate the London vernacular yet aspire to a more open, accessible luxury. With their help, we’ve begun to transform the city’s old architectural landscape for a new generation.

Founded by two Architecture Association graduates, Scenario began with an ambitious and compassionate mandate: to develop a unique style that adapts to each client’s specific needs. We take a considered approach to our clients’ individual needs, producing highly functional interiors that incorporate a deep understanding and precise analysis of their lifestyle. Scenario’s tailor-made homes tell the story of the owner, not the architects.

Our landmark project Scenario House is an example of this dedication to lifestyle, showcasing the potential of London’s period housing stock. Located in Stoke Newington, Scenario house has been shortlisted for several prestigious prizes, including the 2018 RIBA London Awards. As fresh and functional today as when we imagined it, Scenario House demonstrates our customised approach to London living.

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Interior Architects London Your intention to design your home

Starting your London interior

Many interior architects, London-based, can help you jumpstart your residential project. Scenario has undertaken this illustrated overview to help homeowners understand each stage of the process, whether for a renovation or home extension.

Most interior architecture in London still requires planning permission from the local borough council. Scenario has built a successful record acquiring permission for our clients. We claim home advantage across London and the Southeast.

We’ve also created this step-by-step guide to help you determine the requirements for securing planning permission. It can help anyone seeking consent from the council to alter a home in London. It sets out the nuts and bolts of UK planning and offers strategies for navigating the system, based on our own successes.


Discover if your architect has had success steering planning applications through your local council. Visit the “planning applications” page of your council’s website and enter the architect’s name in the search criteria.


We have created guides for homeowners to provide additional advice and help with your project. The following eBooks are currently available for you to download:

1. Planning in London and the home counties - A guide for homeowners
2. Self build - A guide to building your own new build home
Download eBooks

Interior Architects London Design a house with Scenario Architecture

Working with Scenario Architecture on your London interior

Our boutique architecture studio focuses on high-end residential interiors across London. Our bespoke architecture service tackles domestic projects of every scale, from interior alterations to full renovations and new-builds.
Scenario approaches each project from the client’s point of view, guiding homeowners through each stage of the design process, from the drafting table through local planning and tender to the final construction.

A RIBA Chartered Practice, we comply with the strict criteria of the Royal Institute of Chartered Architects. This protects all our clients with insurance, health and safety measures and quality-management.

We pride ourselves on taking up innovative 3D design and visualisation tools on all our projects – we’ve found that real-time visualisations and virtual reality are efficient tools for choosing finishes, maximising space, planning for fixtures and simulating natural light. Our reliable construction information comes from accurate 3D building information modelling (BIM) technology, saving our clients time and money.

This case study from the Chartered Institute of Building (CIOB) demonstrates the benefits of advanced technology for domestic architecture.

Wrap-around extension and full renovation
Extensive renovation within a conservation area
Full refurbishment of a terraced house

Interior Architects London >> Your London Project Further Reading

Through the ages, when London has come up with an architectural style, the city has tended to stick with it for a while. This tendency is what makes a Georgian house so distinguishable from a Victorian, Edwardian, art deco and mid-century home. The elegant lines and flourishes of many urban English styles – and the devotion to lively paint colours – keep the structures from looking cookie-cutter. Still, even a novice can peg the era of a structure within a few decades.

The same goes for the interior. Visit a Georgian home in any English market town and you will be able to find your way around – from the drawing rooms to the kitchens, bedrooms and baths. Victorian terraced homes – the most common house style of London and beyond – are built to a similar template. There’s a double reception, a kitchen in the rear and stairs to the bedrooms and bath. Same number of windows, similar roof pitch. The few variations between them occur in the number of stairs, based on the grade of the property, and the number of bedrooms, based on the footprint.

For that reason, most contemporary architects have worked out space-saving and space-enhancing solutions that can be replicated from house to house. The loft extension, side-return extension and basement excavation have become commonplace moves across the capital and the Home Counties.

These strategies are popular because they work to expand a house when a family needs it. They bring in additional light, make kitchens more functional and acknowledge the different ways in which families are living today. Yet although these designs are classics, they aren’t the be-all and end-all. We at Scenario use the latest technology to recoup space and expand in all directions. We maximise hidden corners under stairs and in the eaves. And we find ways to improve the flow of a home that incorporate unusual angles and silhouettes.

Most important of all, we tailor every one of our home interiors to the homeowners and their lifestyle. Just as no two families are the same, no two kitchens, bathrooms or wardrobes should be. We consult with our clients every step of the way to make sure the way you live, work, sleep, cook, dress and play is reflected in their environment. For this reason, every one of our designs has a different look and flow. So on the outside, you may recognise the house as Victorian, Edwardian or mid-century; but inside, you won’t recognise it as a Scenario House.

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Interior Architects London >> Scenario Architecture In our clients words


Interior Architects London

FAQWhat is unique about the Scenario design process?
The scenario design process was developed, tested and perfected through over a decade of extensive delivery of residential projects within and around London, some of its key features are listed below:   
  • Scenario based design – We start each and every project with a meticulous analysis of our client’s vision, requirements and aspirations. We do this by asking our clients to imagine their everyday scenarios living in the completed house and describe their desired interaction with it. 
We then translate the resulting high definition brief into an informative and revealing 3-dimensional simulation, illuminating aspirations, requirements and patterns of habitation. 
  • Uniquely interactive - Our client’s deep involvement in the process does not stop with completion of the brief. Our design meetings are highly interactive, informal and fun. 
Sitting together in front of a real time 3D model of the proposed design with realistic materials, lighting and textures we push and pull the proposed scheme together to explore its full potential and drag and drop different materials to explore various options. hen we invite our clients to take a virtual reality tour through advanced equipment that is always available in our practice for our clients to explore their projects at different stages of development. 
  • Designed to reflect you – Based purely on your lifestyle, aspirations and requirements and free from externally imposed concepts, metaphors and pre-conceptions, a completely fresh and unique design will gradually emerge and it will tell your story not ours. 
It will not look like an image cut out of a trendy architecture magazine and not designed to intentionally impress anyone. It will feel familiar, warm and inviting and you will recognise yourself in it because it will be a genuine expression of the unique way in which you and your family wish to interact with it and enjoy it for many years to come.

Interior Architects London

FAQWhich additional consultants are required for my project?
A key aspect, absolutely necessary to ensure successful delivery of your project is appointing a suitable and competent professional team. If we work together on your project we would be appointed as your Architects and Lead Consultants and help you to assemble the rest of the professional team. Most projects in and around London will require at least four additional consultants, a Structural Engineer, a Quantity Surveyor for cost control, an Approved Inspector to ensure and certify compliance with building regulations and a Party Wall Surveyor if any work is to be done to a party wall or structure. For some projects, depending on scale, complexity and your specific aspirations it may be recommended/required to use the services of additional consultants. Including but not limited to: Planning, Heritage, Right of Light, Landscape Designer, Audio Visual and Building Services Engineer. When appropriate, we will discuss these options with you and obtain relevant quotes for all additional consultants for you to consider.

Interior Architects London

FAQWhat is the cost of building an extension?
Currently we recommend allowing between £2,500 and £3,000 per square metre for side extensions, rear extensions or front extensions. For basement extensions, which are most expensive way to add space to your home, we recommend that you allow between £3,000 and £3,500 per square metre. When it comes to roof extensions, our experience shows that it is better to allow a lump sum of £40,000-£60,000 for loft conversions with dormer windows and between £80,000 and £120,000 for mansard roof extensions. These ranges are based on averages from numerous actual projects that we have completed in and around London since we established Scenario in 2007. We only use these rough costs per square metre during the early stages of design to maintain awareness of your target budget until a cost professional is appointed and more accurate methods of estimation are employed. The actual cost for your project will depend on many factors, including the complexity of the design, level of structural support required, and selection of fixtures, fittings material finishes. Using these rough ranges as a guide we will work together with you in an interactive process to optimise budget and scope and find the balance that works best for you. The estimated costs per square metre mentioned above are for the build costs only and exclude VAT and professional fees.

Interior Architects London

FAQWhat is the cost of an internal refurbishment?
Currently we recommend allowing between £2,500 and £3,000 per square metre for areas which will undergo an extensive renovation. We designate an area of the project as extensive renovation if the planned works includes substantial changes to layouts, significant structural works, re-plumbing, re-wiring and full redecoration. For areas of lighter internal renovation which do not require significant changes to layout or substantial structural works but do require full redecoration, re-plumbing and rewiring, we recommend allowing between £2,000 and £2,500 as an estimated cost per square metre, we designate these areas as requiring medium renovation. If there areas in your project which only call for a light renovation such as re-plastering, and painting, installing new floor finishes and light modifications of electrics and plumbing fittings, we will designate these as areas of light renovation and recommend that you allow £1,500-£2,000 per square metre or even as low as between £1,000-£1,500 if you only have light touches in mind. The real cost for your project will depend on several different variables including the complexity of the design, extent of structural works and level of fixtures, fittings and material finishes. These estimated costs per square metre are for the build cost excluding VAT and professional fees.

Interior Architects London

FAQWho will be assigned to work on my project?
Any architectural project comprises three main aspects, Creative design, Technical design and Project Management. A successful architectural project can only be achieved when all three aspects are properly performed and harmoniously integrated by an experienced professional. But can we really except a single person to specialise and shine in all three aspects and furthermore skilfully negotiate and balance the often contradictory challenges these aspects present? The basic assumption underlying the common structure of almost all other architectural practices today is that it is possible and this is precisely what is expected from the lone and often junior Architect that would typically be assigned to run your project start to finish. Scenario works in a completely different and new way, we believe in specialism and teamwork and therefore assign three experienced specialists for each and every project. A project team in Scenario is composed of a Project Director, a Designer and a Technical Designer, seamlessly collaborating to deliver results, which are noticeably superior to anything that a single person, skilful as they may be, could ever produce.

Interior Architects London

FAQWhat is Scenario’s approach to sustainability?
In the past, it was common practice for local authorities to impose sustainability standards on residential developments. However, the 2015 Deregulation Act removed the obligation on local authorities to require any standard at all, which means the only requirements having fallen back to those of the Building Regulations.  With no clear and improved targets to work towards, in collaboration with Envision (, we have created optional Sustainability ‘Levels’ to offer our clients the chance to drastically improve the sustainability credentials of their home. These ‘Levels’ encompassing Bronze, Silver, Gold and Diamond, traverse a clear and applicable route from basic compliance with current Building Regulations all the way to the full and rigorous HQM (Home Quality Mark) certification within Level Diamond. As the packages become more elaborate in terms of sustainability, analysis and implemented measures, they provide increasing tangible benefits. Ranging from thermal and acoustic comfort and wellbeing, to reduced carbon foot print, savings on running costs and significant advantages through the planning process.  The more elaborate packages obviously entail higher cost in terms of professional fees as well as impact on the construction cost, although each sustainability ‘Level’ will endeavour to not overly burden the construction budget.

Interior Architects London

FAQWhat is building control and is it required for my project?
In a nutshell building control is the means by which Local Authorities enforce compliance with current Building Regulations.  In practice there are two main ways to go about obtaining the required advice and certification for your project, via your Local Council’s Building Control Department or via direct appointment of an Approved Inspector who is authorised to carry out the inspection and certification on behalf of any local authority.   The role of either the Council’s Building Control Officer or an Approved Inspector is to verify that your project meets all current Building Regulations. They will review and approve all the drawings, inspect the actual work carried out on site and once the project is completed, issue the final compliance certificate. Due to an open market, healthy competition between local councils and approved inspectors, the process and associated costs are almost identical. Having said that, our experience is that the private inspectors still feel and behave more as your appointed consultants and the council’s service still feels more like a statutory inspection and it is often slower and less responsive.  While it is always good to be informed and understand the process well, as your appointed architects we will take care of this aspect of the project for you and save you considering comparable quotes that we will obtain on your behalf and appointing the selected provider. You can leave this aspect of your project entirely with us.  Building control is required for almost all projects, and for all the projects we ever worked on as only minor renovation works may be exempt.