Flat Conversion
Through a unique combination of engineering, construction and design disciplines and expertise.
Welcome to Studio20 Architects London
Transform your property with expertly planned flat conversions in London, delivered by architects who know how to optimise layouts, meet regulations, and increase long-term value. At Studio20 Architects, we recognise that a flat conversion is a wise investment that improves both usability and market appeal. With strong expertise in flat conversion design, we craft practical, high-quality layouts that make the most of your available space.
Our specialists support you through every stage of the project. At Studio20 Architects, you’ll collaborate with a creative and experienced flat conversion architect along with skilled planning consultants. We manage all types of conversion projects, including transforming properties into 2, 3, 4, or even five flats. We ensure your flat conversion is smooth, compliant, and value-driven.
Why Flat Conversion is a Smart Investment
Converting your property into flats is one of the most effective ways to increase its value and generate rental income. By optimising layouts and subdividing intelligently, a single dwelling can be transformed into 2, 3, 4, or even five self-contained flats, unlocking significant long-term returns. Many of our clients have seen their investment potential grow substantially, with rental yields and resale value increasing after conversion. A well-planned flat conversion not only maximises space but also ensures compliance with regulations. Explore our Flat Conversion Pricing or use our calculator to estimate your potential ROI.
Flat Conversion Services
Our expert team delivers complete support for flat conversions in London, managing planning permission, building regulations, feasibility assessments, and construction oversight. We begin by evaluating whether your property is suitable for sub-division and provide clear guidance on timelines, budgeting, and potential returns.
For many property owners, it may seem daunting to convert a house into flats, studios, or maisonettes, but our skilled architects make the process smooth and manageable. We assess the development potential, create efficient layouts, and guide you from concept to completion with tailored, high-quality flat conversion design.
Planning & Compliance Expertise for Flat Conversions
At Studio 20 Architects, we ensure your flat conversions in London projects meet every statutory requirement with ease. Our experienced team provides expert planning permission guidance, navigating council procedures and submitting accurate applications. We manage building regulations compliance, covering structural integrity, fire safety, ventilation, and minimum space standards, ensuring your project is fully compliant.
Converting a property into flats can seem complex, but our skilled flat conversion architect and planning consultants create high-yield, innovative strategies that maximise units while adhering to all regulations. From feasibility assessment to submission and approval, we manage every step efficiently, giving you peace of mind and optimal returns.
Why Choose Studio20 Architects?
If you’re considering a project, get in touch and book a free consultation and discover how our expertise in flat conversions can help unlock the full potential of your property.
Our specialist team of flat conversion architects in London combines creative design, technical expertise, and deep planning knowledge to ensure every conversion is a success. From feasibility sketches to planning applications and detailed construction drawings, we manage each stage with clarity. As trusted experts in flat conversions in London, we provide transparent pricing, efficient coordination, and high-quality multi-unit designs that maximise space, value, and long-term rental potential.
Highly Experienced Architects in London
Our RIBA-chartered architects and planning consultants specialise in flat conversions across London, managing everything from feasibility and planning permission to building regulations and construction oversight. We optimise layouts, maximise potential unit numbers, and deliver compliant, efficient, high-value residential conversions tailored to your property.
Dedicated Planning Consultants
Our extensive portfolio of successful flat conversion design projects shows how we transform under-utilised homes into bright, functional multi-unit spaces. By blending structural intelligence with creative design, we navigate planning challenges confidently and produce conversions that respect council requirements while elevating property value and liveability.
Expert Care and Management
Every conversion is guided by four key pillars: thoughtful spatial planning, strong planning insight, realistic budgeting, and complete regulatory compliance. We address building control, fire safety, ventilation, and minimum space standards early, ensuring your flat conversion progresses smoothly and results in long-term, high-yield, sustainable living spaces.
Get Your Free Flat Conversion Assessment & Project Quote
Start your project with confidence through our free feasibility assessment, designed to help you understand the potential of your property. Whether you’re exploring flat conversion design options or need clarity on costs, our experts will review your layout, assess planning considerations, and outline realistic ROI opportunities.
During your consultation, we’ll listen to your ideas, provide tailored advice, and offer a detailed quote. Request your property review today and take the first step toward a successful, high-value flat conversion.
Here’s what our clients have to say.
This was my first project and I was nervous at the beginning as every thing was new to us. Nadir was very helpful in guiding us through the entire project from planning stages to choosing materials to assigning builders; giving us assurances that the project would be finished on time and on budget. He also provided us with ideas for interior design. The build was of high quality with great care taken throughout. Geroge and his team were excellent builders and really gave us a peace of mind. There were issues with some of the materials (not their faults but due to Covid restrictions and the subcontractors), all of which were sorted out by Nadir and George between themselves. I’m hugely impressed by the after build care (nagging jobs and other issues). They were all addressed without fuzz.
A true test of a beautiful house is whether you are proud of showing it to guests. I’d say this project has passed this test with the highest score. We are still in love with the extension 3 years after it has finished. We’ve also received a lot of compliments from our guests.
I highly recommend both Nadir and George for their service.
Popular Questions, you may be interested in
Yes. Most flat conversions in London require full planning permission because they involve subdividing a single dwelling into multiple units. Our planning consultants prepare compliant layouts, meet space standards, and manage the whole application to improve your approval success rate.
A flat conversion architect ensures your space is efficiently designed, structurally feasible, and fully compliant with regulations. This leads to more units, better layouts, and higher rental yield or resale value. We manage design, planning, and construction to maximise ROI.
Flat Conversion Pricing varies based on property size, structural changes, council requirements, and the number of units desired. We offer clear, transparent guidance during your feasibility assessment so you know expected costs before committing to the project.
Our flat conversion design service includes concept layouts, space optimisation, lighting strategies, fire safety planning, building regulation compliance, and detailed drawings for construction. The goal is to create high-quality, efficient, and marketable flats.
Yes. We regularly deliver loft conversions in flat properties, helping owners add extra units or extend existing ones. We assess structural feasibility, manage planning applications, and produce designs that maximise head height, light, and usable floor area.
A flat conversion usually takes 4–8 months, depending on design complexity, planning approval timelines, and construction requirements. We provide a clear project roadmap so you always know what to expect.
For flat conversions, building regulations cover fire safety, sound insulation, structural stability, ventilation, drainage, and minimum space standards. Our team ensures full compliance to avoid delays and guarantee a safe, high-quality outcome.
Yes. Our feasibility review identifies whether your property is suitable for flat conversions in London by assessing structure, access points, unit layout potential, and planning constraints. We provide clear recommendations before you invest further.
Absolutely. Beyond advising on Flat Conversion Pricing, we help you forecast build costs, professional fees, material choices, and contingency budgets—ensuring your financial planning is accurate and realistic.
A flat conversion architect understands how to balance space efficiency, natural light, fire escapes, amenity requirements, and planning policies. This expertise ensures you achieve the maximum number of units without compromising quality or compliance.