Interiors that feel inevitable.

Full interior design for homes, extensions, conversions and commercial spaces — designed alongside the architecture, not after it.

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Contemporary London apartment interior with open-plan kitchen and living space

Interior design

The best interiors are decided at plan stage.

Socket positions, joinery, lighting and kitchen layouts are all cheap to change on paper and expensive on site. Because our interiors team works with the architectural drawings from day one, everything aligns — structure, services and finishes designed as one.

Concept

How you live or work, translated into layouts, mood and a palette of materials.

Design development

Kitchens, bathrooms, joinery, lighting and finishes drawn and specified in detail.

On-site coordination

We work with your builder and suppliers so what gets built matches what was designed.

A finished Simplicity Designs project in London

“An interior succeeds when you stop noticing the decisions and just enjoy the space.”
Hakki HassanFounder & Principal Designer

What does an interior designer actually do?

Beyond finishes, we resolve the plan: where walls, doors, storage and services go; how kitchens and bathrooms are laid out; how lighting is layered; and how materials flow from room to room. The output is a full drawing and specification package your builder prices and builds from.

Interior design with an extension or conversion

The strongest results come when interiors are designed with the architecture. Structural steels, ceiling heights and window positions all affect joinery, kitchens and lighting — resolving them together avoids compromise later.

Kitchens, bathrooms and joinery

These rooms carry most of the budget and most of the daily use. We design bespoke and off-the-shelf options at different price points, with full drawings for suppliers and installers.

Commercial interiors

For offices, retail and hospitality we design fit-outs that meet building regulations and accessibility requirements while giving the space a clear identity.

Planning an extension too? See extension design →