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Basement Architects

At Gregory Phillips Architects, our Basement Design and Interior Styling services go beyond creating additional space, they transform subterranean areas into vibrant, light-filled living environments. Every basement interior is an opportunity to enhance architectural potential, using refined proportions, premium materials, and meticulous detailing to create spaces that are contemporary, welcoming, and timeless.

Why Choose Gregory Phillips Architects for Basement Design?

Our basement interiors are founded on a philosophy of understated elegance and craftsmanship. We integrate natural materials such as stone, timber, and metal with clean modern forms and clever spatial planning to create basements that feel open, functional, and inviting, far from traditional cramped or dark spaces.

We specialise in maximising natural light and connection to the outside through innovative use of light wells, glazed openings, and courtyard designs, ensuring that your basement benefits from daylight and ventilation while maintaining privacy and comfort. Our designs balance dramatic architectural gestures with cosy, intimate zones, all tailored to your lifestyle and needs.

Attention to detail is paramount: we work closely with skilled craftsmen and trusted suppliers to source and deliver the highest quality bespoke materials and finishes. From custom joinery and hand-finished surfaces to tailored lighting solutions, every element is crafted with care to enhance atmosphere, durability, and wellbeing. Whether integrating a new basement into a listed property, creating a sleek contemporary extension, or upgrading existing lower ground spaces, our designs respond thoughtfully to both architecture and site.

Our Process for Basement Design

We begin by understanding how you want to use your basement, whether for entertaining, relaxation, wellness, or work, and your style preferences. Mood boards, material palettes, and conceptual sketches help us align your vision early on.

Spatial planning focuses on optimising flow, daylight penetration, and connections to upper floors and outdoor spaces. We carefully consider sightlines, ceiling heights, and natural ventilation to ensure the basement feels light, airy, and comfortable.

Material selection is key, whether natural stone, warm timber, or sleek metals, we choose finishes that age gracefully and enhance the sensory experience. Our strong partnerships with specialist suppliers and craftsmen guarantee that bespoke joinery, surfaces, and fittings meet the highest standards.

We also specify lighting that balances functionality with architectural drama, sculpting form, mood, and comfort throughout the day and evening.

Finally, styling adds the personal touch, through carefully selected fabrics, artworks, and accessories that complement the basement’s architectural character and your lifestyle.

You can find out more about our seven-stage process here.

Creating Exceptional Living Spaces Below Ground

Our basement interiors are designed to be as liveable as they are beautiful spaces where form meets function and everyday life can unfold with ease. Whether a new-build lower ground floor or a sensitive conversion, our designs offer a timeless, contemporary approach that redefines what a basement can be.

Begin Your Basement Transformation Today

If you’re looking to create a basement that is refined, cohesive, and truly bespoke, crafted with the finest materials and expert workmanship, Gregory Phillips Architects is ready to bring your vision to life.

Contact us to arrange a consultation and discover how our basement design and interior styling services can add depth, light, and distinction to your home.

See our selected projects

About Us

Located in Holborn at the heart of London’s midtown, we are on the doorstep of one of the world’s great cities. Culturally rich, everchanging and with a wealth of brilliant suppliers, craftsmen and consultants, our projects span the breadth of the UK and even internationally.

Gregory has led the studio and driven a focus on designing extrordinary homes for over three decades. His determination to continually be at the forefront of British design has resulted in a portfolio being internationally recognised in the architectural and interior design industry.

Find out more about our studio

Our Process

Working with an architect on your home is a deeply personal journey and a relationship that can span multiple years. We not only understand this, but cherish a close partnership with our clients.

We consider ourself a safe pair of hands and have an unrivalled track record of delivering the most demanding projects. We feel comfortable navigating complex briefs,
planning processes and building to the highest standards.

Whilst our process is flexibile, for the majority of our homes, we are involved from concept to completion. Our team of architects have vast expierience and have all worked at the studio for many years.

The architect you meet at the beginning, will be with you for your entire project. This can prove invaluable.

Learn more about our process

Award Winning Architects

We strive for the highest standards in the design and build of each home we work on. Many have been recognised for their contribution towards the architectural and interior design industry.

Recent awards and recognitions

/ 2024     UK Property Awards - Single Residence [winner]
/ 2024     Architizer A+ Awards - Large Private House [finalist]
/ 2024     RIBA London Award [shortlist]
/ 2024     British Homes Awards - Best UK House [shortlist]
/ 2023     Design et al - Luxury Residence Europe [shortlist]
/ 2022     RIBA London Award [nominee]
/ 2022     British Homes Awards - Best UK House [shortlist]
/ 2020     Luxury Lifestyle Awards - Best Luxury Architecture UK [winner]
/ 2020     BD Architect of the Year - Interiors [finalist]
/ 2018     RIBA West Midlands Award [winner]
/ 2018     RIBA South Award [winner]
/ 2018     British Homes Awards - Large House of The Year [winner]
/ 2018     RIBA House of the Year [longlist]
/ 2018     Design et al - Luxury Residence Europe [winner]
/ 2018     RIBA House of the Year [longlist]
/ 2018     British Homes Awards - Extension of the Year [highly commended]
/ 2018     British Homes Awards - Interior Home Design [highly commended]
/ 2018     BD Architect of the Year - Interiors [finalist]
/ 2017     International Design & Architecture Awards - Luxury Residence Europe [winner]
/ 2017     Design et al - Luxury Residence Europe [winner]
/ 2017     UK Property Awards - Best Single Residence [winner]
/ 2017     UK Property Awards - Best Interior Design [winner]
/ 2017     BD Architect of the Year - Individual Houses [finalist]

Press

Our homes have featured in a wide variety of national and global design publications and newspapers.