Architecture and interior design for spaces that are made to last.
Phasezero Design Studio is a London-based architecture and interior design practice specialising in luxury residential projects, sensitive historic building restoration, and bespoke hospitality interiors. We work across the UK, Italy, and Spain, from concept and planning through to construction delivery and final fit-out.
Our approach starts before the drawings begin. We call it Phase Zero: the strategic, pre-design thinking that makes every subsequent decision more purposeful. It is why our projects finish on time, on brief, and, in the words of the clients who commission them, feel entirely right.
Our Services
Architectural Design
Bespoke architectural design for luxury residential projects, historic building extensions, and hospitality developments across London, the UK, Italy, and Spain.
Interior Design
We design for high-end private residences, historic homes, and boutique hospitality environments. Our interiors begin with the architecture of a room — its proportions, light, and material character. Everything else follows from there.
Management
Full project management from planning application to final handover, coordinating architects, engineers, contractors, and specialist trades so you are not managing a complex construction process yourself.
Our Philosophy
Every project begins before the drawings.
We call it Phase Zero: the strategic thinking that happens before a line is drawn. Understanding the building, the place, the people, the brief — and the things that are not yet in the brief. From that foundation, every subsequent decision becomes more purposeful.
We start from the architecture, not the aesthetic.
Colour, wood, marble — these are not finishes applied at the end. They are materials that function as colour, that carry the weight of a room, that change how a space feels to move through. We make those decisions from the architecture outward.
We stay involved until it is right.
The project does not leave our hands at the point where it starts to get complicated. We are on site, in communication with contractors, and accountable for the result — through planning, through construction, through the final layer of interiors.
Our Process
01
Discovery & Consultation
We spend time understanding your project before we propose anything. That means the building, the brief, the budget, the planning context, and the way you actually want to live or work in the finished space.
02
Concept Development
From that foundation, we develop a concept that is specific to your project — not a style applied from outside, but a design position that comes from the building and the brief themselves. We present this as a coherent direction before moving into detailed design.
03
Design & Planning
We develop the concept into full technical drawings, specifications, and where necessary, planning and listed building consent applications. We coordinate any specialist consultants — structural engineers, heritage advisors, acoustic consultants — required by your project.
04
Construction & Delivery
We manage the construction phase with the same involvement we bring to design: on site, in communication with contractors, and accountable for the result. The project does not leave our hands at the point where it starts to get complicated.
CLIENT STORIES
What Clients Say
What stood out most was their attention to detail at the earliest stages. Lisa helped us define our priorities and align all stakeholders before moving forward, which made a huge difference as the project progressed. Her input has had a lasting impact on how we approach new developments. Highly recommended for anyone looking to get things right from the outset.
Residential, Grade II listed building
Working with Lisa & Flavia gave us confidence from day one. They quickly understood the complexities of our project and translated them into a clear, structured approach. Communication was always straightforward, and they were proactive in highlighting risks we hadn’t even considered. It’s rare to find a team that combines strategic thinking with such practical insight.
Hospitality Client, Management
We approached Phasezero at a very early stage with just a rough idea, and they helped turn it into something tangible. Their ability to challenge assumptions while still respecting our vision was incredibly valuable. The clarity they brought to the brief saved us both time and cost later on. It felt like a genuine partnership rather than a standard consultancy service
Private Client, Interior Design
Crafting Spaces With Purpose Since 2019
hasezero Design Studio works with private clients, heritage property owners, and hospitality operators who want spaces that feel considered, lasting, and entirely their own. We bring together architectural thinking, construction knowledge, and interior design into one coherent process — from the first idea to the finished space.
50+ Projects · 7 Years · London, Italy, Spain
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Start Your Project
Every great space begins with a conversation. Tell us about your vision, and we'll explore how we can bring it to life with clarity, creativity, and care.