More than just an interior design studio. Our expertise, your vision.

Spaces shaped by insight, strategy, and global perspective.

Every project comes with competing priorities, tight timelines and big decisions. Our job is to guide you through it all with clarity and calm. We listen closely, think strategically, and design spaces that genuinely support how your business operates. Thoughtful design that delivers.

Two women standing outdoors; one in denim outfit looking thoughtfully, the other in black blazer holding a tablet and stylus.

Our Sectors

Workplace

We design workplaces around how teams actually operate. Grounded in strategy, data, and real workflows, our offices support productivity, culture, and growth over time. From test fits and feasibility through to full design and delivery, we help businesses make confident decisions and create spaces that adapt as they evolve.

Retail

We design retail environments that translate brand into space and convert customer attention into commercial performance. Grounded in customer journey, operational flow, and strategic thinking, our work supports everything from flagship stores to multi-site roll-outs, creating spaces that feel distinctive, function effortlessly, and perform from day one.

Hospitality

We design hospitality venues that balance atmosphere with operational performance. Grounded in service flow, back-of-house functionality, and guest experience, our work supports cafés, restaurants, and bars that feel distinctive, run smoothly, and keep customers coming back.

Multi-Residential

We design multi-residential interiors that strengthen market positioning and support sales. From apartments and townhouses to lobbies and shared amenities, we create cohesive, well-resolved environments with coordinated finishes and clear documentation, delivering spaces that feel refined, ready for market, and built to last.

Health, Wellness & Lifestyle

We design calm, brand-aligned wellness environments that balance atmosphere with functional and regulatory requirements. From studios and clinics to treatment and spa spaces, our work supports privacy, practitioner workflow, and a client experience that feels considered from the moment they arrive.

Strategy, Feasibility & Test-Fit Planning

We provide data-driven test fits and feasibility studies that confirm whether a space will work before you commit. Focused on layout, capacity, and operational logic, our work supports confident leasing, investment, and early-stage decision-making across workplace, retail, hospitality, and residential projects.

The feeling is mutual

"Sandra and Steph bring a commercially driven approach to design, with a clear understanding of how decisions impact delivery, stakeholders, and outcomes. Their thinking is pragmatic and well suited to complex commercial environments across a range of business types and scales. They operate with professionalism and integrity, backed by global experience and a calm, assured manner that builds trust with clients and collaborators."

Tristam Waters

Managing Director PjM Advisory, Turner & Townsend

“Studio Onda combines strong design instinct, commercial judgement and global experience. When dealing with Steph and Sandra, it's obvious that their design methodology and results-driven approach is the difference between a good design and a great one. They offer clients direct access to their direct experience in senior-level design thinking and expertise, in a way that differs from traditional studio structures. I would recommend Studio Onda to clients and collaborators seeking a thoughtful and commercially grounded design partner.”

Toby Ewert

Director, Ewert Advisory

"Studio Onda has been part of this project from its inception, and from day one they understood the vision completely. Steph and Sandra envisioned an atelier that truly reflects the elegance of my jewellery, crafting a space that balances light, texture, functionality and beauty in a way that feels deeply aligned with the brand. They guided us through each phase of the project with ease, and knew exactly what we needed even before we did. The result is an atelier that reflects the next chapter of my business, and feels like a dream to walk into for myself, my team and our clients”.

Cassandra Mamone

Jewellery Designer

Two women walking and smiling on a city sidewalk, one in denim and holding a clutch, the other in a black blazer, while a man in a white shirt photographs them.

Big brand experience with a boutique approach

We’re Sandra and Steph. We’ve travelled the world through our work, living and designing across London, Paris, and Tel Aviv, and delivering projects throughout Europe, the Middle East, and the USA.

Along the way, that experience shaped how we think about design, creating solutions that are strategic, adaptable, and grounded in how spaces need to perform across cultures, industries, and scales. We believe the best outcomes come from listening closely and designing with intent. Today, we apply that experience through a boutique, hands-on approach, staying personally involved from first conversation to final handover.

More about us Sandra & Steph's Signature

Who We Work With

Developers, Investors and Landlords

Designing interiors that support feasibility, market positioning, leasing performance, and asset value.

RETAIL, HOSPITALITY AND WELLNESS OPERATORS

Designing customer-facing spaces that align brand, experience, and operational performance.

BUSINESS OWNERS AND OCCUPIERS

Creating workplaces that reflect culture, support teams, and facilitate business growth.

LEASING AGENTS AND PROPERTY ADVISORS

Providing test fits, spec suites, marketing and planning support to accelerate leasing outcomes.

BUILDERS AND DELIVERY PARTNERS

Providing senior level design support including design management and specialised consultancy.

PROJECT MANAGERS AND ARCHITECTS

Providing integrated interior design support and management, including specialist consultancy.

Our process is designed to make the journey feel seamless.

01. Briefing & Strategy

We start by listening. We take the time to understand your business, your people and your goals, so we can set a clear direction from the very beginning.This stage establishes the strategic direction, scope, and decision-making framework that guides the project from the outset.

02. Concept Design

We analyse how your space can work best explore materiality, light and form to create a cohesive vision that aligns with your brand and feels right for the people using it.We develop the overall design intent, including spatial planning, layout principles, and a clear design language.

03. Design Development

We refine every detail with construction and cost in mind, then prepare clear, coordinated documentation for approvals, tendering and construction. Everything is pressure-tested to ensure it's practical, buildable and aligned to your budget.

04. Delivery

We stay involved through construction, reviewing details, attending site and protecting the design intent. Your space is handed over considered, complete and ready to perform.