Distinctive, Timeless & Personal.

Interiors that feel as good as they look.

Founded by Siobhan Casey, Casey & Fox is a full-service interior design studio based in Sanderstead, South London, creating bold, colourful, and artfully curated homes for clients across the UK and beyond.

Crafting spaces that feel like home

At Casey & Fox, we believe every space should tell its own story.

For years, we’ve been dedicated to creating interiors that are both beautiful and deeply personal-places our clients love to live and work in. With a collaborative and approachable style, we make the design process seamless, whether you’re refreshing a single room, renovating an entire property, or reimagining your business environment for maximum impact.

From concept to completion, we handle every detail, guiding you through decisions and ensuring the journey is as enjoyable as the destination.

Discover our online consultations, as well as our bespoke interior design services (residential and commercial included), take a peek at our project gallery, and take the first step toward transforming your space.

Featured in

Online Consultations

Get expert design advice from anywhere.

Our online consultations give you tailored solutions, fresh ideas, and a clear plan to transform your space – all from the comfort of your own home.

Bespoke Interiors

From initial concept to the final flourish…

Our bespoke interior service is completely tailored to you. We create spaces that are as functional as they are beautiful, reflecting your personality, lifestyle, and vision in every detail.

Stories of Happy Spaces

"My Design Hotline session with Siobhan really opened my mind to design choices I wouldn’t have thought of and I’m so thankful. I’ve recently completed a renovation of my open plan kitchen/ living room and hallway so the walls are bare and needing some inspiration. I sent photos and videos which Siobhan analysed and provided ideas for artwork, storage units, lighting and plants - as well as links to trusted suppliers. She even discussed practical tips like putting UV screens on my bifold doors to protect the flooring and sofa from fading. I’d highly...
Read More
H Edwards, Earlsfield
"My Design Hotline session with Siobhan really opened my mind to design choices I wouldn’t have thought of and I’m so thankful. I’ve recently completed a renovation of my open plan kitchen/ living room and hallway so the walls are bare and needing some inspiration. I sent photos and videos which Siobhan analysed and provided ideas for artwork, storage units, lighting and plants - as well as links to trusted suppliers. She even discussed practical tips like putting UV screens on my bifold doors to protect the flooring and sofa from fading. I’d highly recommend Casey & Fox interior design services, I gained so much from the hour. Thanks again Siobhan!."
H Edwards, Earlsfield
"Siobhan, thank you so much for all your wonderful creative ideas and advice. The little room will soon be turned into a super techi stylish bedroom/office. Your insight into how to makeover a small room on a budget was wonderful, I loved the fact that you were able to share so much information virtually!! Your pricing concept is genius, charging hourly and with upper limits is just unique. Offering this service to people who thought it was out of reach is wonderful. I would never have thought that I could afford to hire someone like you. Thank you so ...
Read More
J Deeks, Fulham
"Siobhan, thank you so much for all your wonderful creative ideas and advice. The little room will soon be turned into a super techi stylish bedroom/office. Your insight into how to makeover a small room on a budget was wonderful, I loved the fact that you were able to share so much information virtually!! Your pricing concept is genius, charging hourly and with upper limits is just unique. Offering this service to people who thought it was out of reach is wonderful. I would never have thought that I could afford to hire someone like you. Thank you so much."
J Deeks, Fulham
"We recruited Casey and Fox to design our stand for the Spirit of Christmas Fair 2012. Casey & Fox took on board my requirements, concerns and comments at all stages of the project giving me full confidence in the company throughout. They provided a complete service, including a choice of carefully thought out themes, procurement, set-up and breakdown, taking a huge weight off my mind and freeing up my time to take care of other important tasks. The team were full of energy, enthusiasm and encouragement at all times and,...
Read More
K Mowat, Grannies Inc.
"We recruited Casey and Fox to design our stand for the Spirit of Christmas Fair 2012. Casey & Fox took on board my requirements, concerns and comments at all stages of the project giving me full confidence in the company throughout. They provided a complete service, including a choice of carefully thought out themes, procurement, set-up and breakdown, taking a huge weight off my mind and freeing up my time to take care of other important tasks. The team were full of energy, enthusiasm and encouragement at all times and, without a doubt, contributed to our company’s success at the show."
K Mowat, Grannies Inc.
"Not having gone through this process before I was reluctant to work with an interior designer, but my wife was very keen to bring an interior designer on board. I couldn't have been more wrong. Our taste and style is not traditional. I run a music venue and a tattoo studio, so our style is off the hook. Once Casey & Fox had met us at the house and looked at our furniture, our art work and at the pages from magazines we had torn out over the past 3 months they came back to us with concepts which proved that ...
Read More
J O'Grady, Surbiton
"Not having gone through this process before I was reluctant to work with an interior designer, but my wife was very keen to bring an interior designer on board. I couldn't have been more wrong. Our taste and style is not traditional. I run a music venue and a tattoo studio, so our style is off the hook. Once Casey & Fox had met us at the house and looked at our furniture, our art work and at the pages from magazines we had torn out over the past 3 months they came back to us with concepts which proved that they totally understood our style. Once the project started, communication was excellent, deadlines were met and budgets adhered to. When issues with suppliers came about they were navigated, compromises were found and options given. The process was made easy for us. The main thing (we run 2 different businesses) was that we didn't have the time or the headspace to research umpteen different kinds of flooring or companies looking to supply them. Going through Casey & Fox, they took our concepts and examples of what we wanted and came back and narrowed the field in terms of products but also in terms of suppliers - recommending ones with whom they had a good relationship. To us, it was a predominantly stress-free build. It may not have been to them! They shielded us from unnecessary drama and brought crucial issues to us only after they had been digested and resolutions and options found. We had some issues with a joiner who became very difficult to deal with and they steamed through it like absolute troopers! Their level of paperwork and detail was also very, very good. We hope to work with them again.."
J O'Grady, Surbiton
"A very kind friend bought an interior design consultation with Siobhan for me as a gift, at this charity auction last year. Siobhan contacted me before our meeting to find out about the rooms for consideration and what ideas I had already – we exchanged quite a bit of useful information by phone and email so, on consultation day when Siobhan came to my home, she was armed with good suggestions and samples. She was friendly, relaxed, full of enthusiasm and very knowledgeable – about style, fashion, fabrics and suppliers as...
Read More
S Carter, Hampshire
"A very kind friend bought an interior design consultation with Siobhan for me as a gift, at this charity auction last year. Siobhan contacted me before our meeting to find out about the rooms for consideration and what ideas I had already – we exchanged quite a bit of useful information by phone and email so, on consultation day when Siobhan came to my home, she was armed with good suggestions and samples. She was friendly, relaxed, full of enthusiasm and very knowledgeable – about style, fashion, fabrics and suppliers as well as the practicalities of the project. She was generous with her time, emailed further layout suggestions and specialist contact details after her visit and has welcomed any further enquiries. I feel very fortunate to have been the recipient of such a fantastic gift!"
S Carter, Hampshire
"I hired Siobhan to help with our basement conversion project. I wasn't convinced I needed an interior designer as I had quite clear ideas of my own, but am so glad I did! I loved that although Siobhan didn't necessarily share my taste, she could translate my vision brilliantly. When I felt bogged down in nitty gritty, she helped me focus and made decision making very easy! We have since used her for advice on our bedroom and I wouldn't now consider a big project without consulting her!"
A Freeman, Kingston
"I hired Siobhan to help with our basement conversion project. I wasn't convinced I needed an interior designer as I had quite clear ideas of my own, but am so glad I did! I loved that although Siobhan didn't necessarily share my taste, she could translate my vision brilliantly. When I felt bogged down in nitty gritty, she helped me focus and made decision making very easy! We have since used her for advice on our bedroom and I wouldn't now consider a big project without consulting her!"
A Freeman, Kingston
"We worked with Casey & Fox on re-purposing a room in our main home and the full design/rebuild of our holiday home. Siobhan’s expertise, attention to detail, and product knowledge were invaluable - from clever layout improvements and space-saving ideas to perfect paint, flooring, lighting, and furniture choices."
M Pollard, Outwood
"We worked with Casey & Fox on re-purposing a room in our main home and the full design/rebuild of our holiday home. Siobhan’s expertise, attention to detail, and product knowledge were invaluable - from clever layout improvements and space-saving ideas to perfect paint, flooring, lighting, and furniture choices."
M Pollard, Outwood
"By word of mouth we met Casey and Fox. They understood really well what we were looking for. We were given several concepts to choose from and plenty of valuable advice. They were patient and managed to work around our busy schedule helping us making the right decision and sorting out problems for us. They made sure to create something wonderful, practical and at an affordable price"
C Benini, Leatherhead
"By word of mouth we met Casey and Fox. They understood really well what we were looking for. We were given several concepts to choose from and plenty of valuable advice. They were patient and managed to work around our busy schedule helping us making the right decision and sorting out problems for us. They made sure to create something wonderful, practical and at an affordable price"
C Benini, Leatherhead
" The Directors have asked me to pass on their thanks for all the work you have done on the refurbishment of 56 Vincent Square. We are all very pleased with the results and agree that it is a vast improvement. A number of people have commented very favourably on the redecorations and the Main Reception, in particular. The reception is a real transformation and much enhances the main entrance to our building. We wish you continued success with your business and once again, we appreciate the help and guidance you have provided to...
Read More
Directors of the Residents Board, London SW1
" The Directors have asked me to pass on their thanks for all the work you have done on the refurbishment of 56 Vincent Square. We are all very pleased with the results and agree that it is a vast improvement. A number of people have commented very favourably on the redecorations and the Main Reception, in particular. The reception is a real transformation and much enhances the main entrance to our building. We wish you continued success with your business and once again, we appreciate the help and guidance you have provided to achieve a stylish and updated residence."
Directors of the Residents Board, London SW1
"I had a Design Hotline session with Siobhan last week over Zoom. We had recently moved home and our bedroom is spacious, but lacks storage and a cohesive look that would make it the truly restful space we would like it to be. Siobhan had some wonderful ideas about colours and furniture that would combine my need for colour, personality and pretty things with my husband's need for plain and simple, and incorporate our combined need for plenty of storage. Siobhan showed me websites to explore with attractive, compatible (but not cookie-cutter) pieces that would lift the character of the ...
Read More
S Alexander, Eltham
"I had a Design Hotline session with Siobhan last week over Zoom. We had recently moved home and our bedroom is spacious, but lacks storage and a cohesive look that would make it the truly restful space we would like it to be. Siobhan had some wonderful ideas about colours and furniture that would combine my need for colour, personality and pretty things with my husband's need for plain and simple, and incorporate our combined need for plenty of storage. Siobhan showed me websites to explore with attractive, compatible (but not cookie-cutter) pieces that would lift the character of the room and work within my budget. Very importantly, she was sensitive to the character and period of the house in her design choices. It is really quite remarkable what Siobhan managed to achieve in a remote session without ever having set foot in the house. Afterwards she sent me very comprehensive notes so I could access the resources we had discussed with ease. I shall look forward to implementing Siobhan's suggestions and creating a tranquil space for us to rest in. "
S Alexander, Eltham

Only need help with one room?

If you need help making one quick decision in a single room – like choosing the right paint colour, finalising a tile layout, or confirming which light fitting works best – the Design Hotline is ideal.

It’s a focused 1-hour consultation designed to give you fast, clear advice without overcomplicating things. Perfect for when you’re stuck on one detail and need a second opinion to move forward with confidence.

DB+

Latest from the Blog

By
Aug 22 2025

Tjukurrpa: The Dreaming – Experiencing Aboriginal Art in London

Every so often, an exhibition stops you in your tracks. For me, it was Tjukurrpa: The Dreaming at Unit London, a show that brought together some of...
By
Oct 23 2019

Dale Chihuly – Reflections on Nature Exhibition

Dale Chihuly – Reflections on Nature Exhibition Running at Kew Gardens until 27 October It was love at first sight when, some 20 years ago in San...
By
Chamber of Curiosity
Sep 30 2019

The Chamber of Curiosity: Apartment Design and the New Elegance

The Chamber of Curiosity: Apartment Design and the New Elegance. If you are in search of some design inspiration for your home, something just a bit...
By
Sep 04 2019

Somerset House, Summer Film Screening 2019

Somerset House, Summer Film Screening 2019 Spanning 14 summer nights, Somerset House becomes London’s largest open-air picture house within the...
By
Aug 19 2019

Going Underground – London’s Hidden Treasures

Going Underground - London's Hidden Treasures We’re going underground to unearth some of the capital’s beautifully restored examples of Victorian...
By
Royal Academy’s 251st Summer Exhibitio
Jul 30 2019

If you go down to the RA today…

If you go down to the RA today… Be sure to open your mind, as we take a look around the Royal Academy’s 251st Summer Exhibition while asking...
By
Jul 20 2019

When Two Palettes Collide

When Two Palettes CollideBroaching something as subjective as taste is never going to be easy, introduce the idea of food as art, and we’re on...
By
Jun 17 2019

Colour in London

London’s Secret Designs When choosing art for the home, it’s very natural to select pieces because you like the subject matter or the style of the...
By
Jun 10 2019

Casey & Fox Featured in Houzz Sweden: Styling in Threes

Featured on Houzz : Choosing the Perfect Splashback Why a Painted Glass Splashback Still Works Wonders We’re thrilled to share another feature on...
By
interior-design-casey-and-fox-residential-croydon
Nov 15 2018

Vacancy – Junior Office Administrator

From time to time we do hire freelance Interior Designers and CAD technicians for specific project work. If you would like to be put on our list to...