Our clients are discerning individuals, operators and developers who demand more than the ordinary.
For them, we provide not only design but the reassurance of a complete process: one that protects their vision, safeguards their investment and ensures clarity at every stage. Our integrated model delivers tighter cost control, stronger cohesion and outcomes that are as commercially intelligent as they are beautifully crafted.
We are as confident restoring historic fabric as we are delivering contemporary new builds or multi-phase developments. With experience across diverse contexts, from India to the USA, and the diplomacy to navigate planning frameworks and heritage bodies, we bring a global outlook with the intimacy and agility of a boutique practice.
At Simpson Studio, excellence is not about spectacle. It is about creating spaces that elevate daily life, enrich spatial experience and stand the test of time. For our clients, that means more than a finished project: it means a complete journey, delivered with clarity, confidence and craft without compromise.
Cohesive process = tighter control, fewer surprises, better outcomes.
Most projects are fragmented. You hire an architect for the design, an interior designer for the finishes, a contractor to build and perhaps a cabinet maker for the furniture. Each works in isolation, with separate contracts, competing priorities and limited oversight. The result? Costs creep, timelines slip and the original vision is often compromised.
Simpson Studio does it differently. We unite architecture, interiors and cabinet making under one roof, managing the full journey from concept to completion. One team, one vision, one seamless process. Nothing is lost in translation, details aren’t diluted and clients aren’t left juggling multiple parties.
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Seamless A-Z Delivery
Very few practices deliver the full journey. We unite architecture, interiors and cabinet making under one roof, ensuring the vision carries through every stage without dilution. This integration protects design intent, safeguards budgets and creates spaces where every element belongs.
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Heritage Expertise, Planning Confidence
Competitors may claim heritage knowledge, but our strength lies in diplomacy. We know how to work with planning officers and heritage bodies: framing, persuading and securing approvals where others falter. This skill de-risks projects at home and abroad, giving clients confidence that even the most complex permissions can be achieved.
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Global Presence, Boutique Scale
International studios deliver at scale but often lose intimacy. Boutique practices offer care but lack breadth. We occupy a rare middle ground: matching the global presence and ambition of world-leading studios while keeping relationships direct, personal and senior-led.
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Sustainability As Standard
For us, sustainability is not an ethos bolted on at the end, it’s embedded from the outset. From fabric-first design to material longevity and performance metrics, we design responsibly as standard, balancing beauty with measurable impact.
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Craft At Every Level
Others stop at finishes. We embed craft from structure to surface, architecture to cabinet-making. Every detail, from a façade line to a bespoke writing desk, is considered, refined and built to last. This commitment places us alongside the finest heritage makers, not the contractor’s fit-out.
Our team are experienced across diverse contexts, from India to the USA.
Our integrated approach isn’t just smoother—it creates better buildings, richer interiors and, above all, a client experience defined by clarity, confidence and enduring value.
Joanna Simpson | Director
Joanna founded Simpson Studio in 2013 with a clear vision, to create exceptional, hand-crafted buildings where no detail is overlooked. An award-winning architect with a First-Class degree from The University of Edinburgh and recipient of the prestigious Martin Hackett Award, Joanna began her career at the humanitarian architecture charity Article 25. There, she worked on schools in Pakistan alongside Fosters and Partners, and a conservation and community projects in Sierra Leone’s largest national park with Jack Pringle.
Today, as Director of Simpson Studio, Joanna leads a multidisciplinary team of architects, interior designers and cabinet makers across offices in London and Edinburgh. Under her leadership, the studio has become known for its deeply collaborative process, architectural integrity and commitment to craft. Delivering everything from private homes and members clubs to brand-led commercial spaces and heirloom furniture.
Alongside practice, Joanna is actively involved in shaping the future of architecture and development in Scotland. She is a trustee of the Edinburgh Architectural Association and sits on the Edinburgh Urban Design Panel, helping to guide major planning and regeneration proposals across the city.
Alex Ewan | Director
Alex is an RIBA chartered Architect who joined Simpson Studio in 2015 after completing her Part II at the CASS with London Metropolitan University. Since joining Simpson Studio, she has worked on a rich variety of residential and commercial projects, and has developed her skills in adapting historic and listed buildings.
Alex has a particular love for detail drawings, and with a pragmatic approach, enjoys the finer problem solving that a beautiful piece of joinery or complex building junction can require.
James Deru | Architect
James qualified as an Architect in 2022 after completing his studies at the Architectural Association and the University of Bath. He has experience working on a wide variety of projects, ranging from detailed focussed residential projects in London to high-profile public realm and masterplanning strategies internationally.
James enjoys the challenge of designing bespoke details that can bring ambitious designs to life and is well-versed in the complexity of turning design into reality having recently designed and built his own home in South London.
Aylin Ozdemir | Architect
Aylin joined Simpson Studio in 2021 during her Part II and has been a key member of the team throughout her architectural training. She completed her Part III and qualified as an architect in 2025. Since joining the studio, she has contributed to a wide range of projects, gaining experience across various scales and typologies. Aylin is driven by a desire to design architecture that is thoughtful, contextually responsive, and socially meaningful.
With a strong interest in sustainable and human-centered design, she aims to create spaces that not only serve their function but also elevate everyday experiences. Her goal is to continue evolving as a designer while contributing to work that has a lasting, positive impact on people and places.
Georgina Stewart-Fleming | Part II Architectural Assistant
Georgina graduated from the University of Edinburgh where she gained a Masters in Architecture in 2023. She began her professional experience at Helen Lucas Architects, working on a number of residential projects across Scotland. She gained expertise in developing bespoke interventions to historic buildings which brought greater functionality to contemporary homes.
Georgina joined Simpson Studio in 2025, attracted by the practices’ multidisciplinary approach. She has an interest in working across scales, from buildings to objects, while exploring new materials and crafts. Georgina enjoys physical model-making to develop designs and test material capabilities. Her final sequence of models, developed during her masters, were displayed in the 2024 RSA Annual Exhibition.