We are a London-based studio founded in 2015 by Federico Nassetti and Fabrizio Cellini.
We create architecture that thoughtfully balances nature, materials, and geometry—spaces that feel right for their place and their people.

Our Background & Enduring Collaboration
We first met in 2006 at Claudio Silvestrin Architects, where Fabrizio was Associate Director.
Our collaboration has never stopped—we continue to work closely with CSA on international projects today.
That ongoing partnership, together with our 30+ years across practices like AHMM, Arup Associates, Gianni Botsford, and private work in the Bahamas, shapes everything we do.

What Sets Us Apart - Navigating Complexity

We specialise in sites others find too tricky. We secure planning permission and listed building consent in demanding contexts:

  • Tight Central London plots and conservation areas

  • Grade II listed refurbishments and extensions

  • Sensitive heritage settings

  • International projects with varied regulations

We do this through careful pre-application work, contextual sensitivity, strong heritage statements, and designs that respect rules while delivering real value.

Our Services & Approach

We provide end-to-end architectural services with meticulous attention to detail:

  • Bespoke Architectural Design — New builds, extensions, and transformations for private residences and developments

  • Interior Architecture & Fit-Out — Luxurious, functional spaces including private cinemas, gyms, spas, and hospitality venues (e.g., Scotland’s first Prosecco bar)

  • Planning & Heritage Expertise — Full support for planning applications, listed building consent, conservation area works, and appeals where needed

  • Project Management — From feasibility and concept through detailed design, tendering, and on-site delivery

Inspired by context, client needs, and the enduring principles of material honesty and geometric clarity, we craft spaces that are both timeless and deeply personal.

“We focus on crafting spaces that are both visually stunning and seamlessly integrated with their context and the inhabitants' needs—while confidently navigating the most demanding planning environments.”

If your project involves a challenging site, heritage constraints, or the need for assured planning success—whether in London or internationally-our experience and ongoing international collaborations position us uniquely to deliver.