About Me

I’m Marcin Piotrowicz — an architect based in Belfast, working with homeowners on houses, extensions, remodelling and fabric-first upgrade strategies. My focus is on shaping homes around light, space, comfort and everyday life, with technical care built in from the start. I’m also a certified Passive House designer, bringing a rigorous fabric-first approach where it genuinely helps the project.

How I Help

I help homeowners design new & improve existing Belfast and Northern Ireland houses through architect-led design, remodelling, extensions and fabric-first upgrade strategies. The work usually starts with understanding the the client’s priorities, existing site/house, and whether the project needs spatial design, approvals, technical coordination or a more careful fabric-first upgrade strategy.

My Process

Every project starts with understanding the client’s aspirations/proirities, budget, site or existing house, and whether the work is mainly about space, approvals, technical coordination, fabric-first upgrades, or a mix of these.

I normally begin with an initial conversation, then a more detailed look at the site/property and brief. From there, I can advise whether there is a good fit between the client’s needs and my expertise. and what level of design, consultant input or approvals may be needed.

The aim is to move carefully from early options to a clear route forward, without pretending that every house project needs the same answer.