Built around
real life.
A little more space can change your whole day. We design and build bespoke garden rooms that make room for what matters to you.
Based in Harpenden. Building across Hertfordshire and beyond.

- Since 2018
- From our garden to yours
- Truly bespoke
- Designed around your life
- Built in-house
- One team, every detail
- 10-year
- Structural warranty

It started in
our own garden.
Before Cedar Spaces was a business, it was a room Brian built for his own family.
In 2018, with young children at home, Brian O’Connell built a garden room that gave him space to work, keep fit and enjoy family life. Seeing the difference it made inspired him to help other people create a space of their own.
Today, he brings a background in engineering and financial planning together with a passion for design. That same personal approach still shapes every Cedar Spaces project: understanding what you need, working through the possibilities, and caring about the details.
Talk to Brian about your ideasPersonal by design.
Considered in every detail.
A room should do more than look the part. It should fit your life, feel good to use and be built for the years ahead.
Room to do more
Create space for work, movement or time together, without extending the house. We help you consider the layout, site access and planning requirements from the start.
Designed around you
Your garden, your routine, your ideas. We shape the footprint, layout, glazing and finishes with you, then build your room to suit. Every project is bespoke.
Comfort in every season
Full insulation, heating and premium glazing make your room somewhere to spend time throughout the year. A finished interior, with electrics, plastered walls, flooring and lighting.
Made for the long term
Durable materials and a versatile layout give your space a life beyond its first use. We talk through material choices, care and how the room can work as your needs change.
Less upkeep. More living.
Choose natural timber or modern composite cladding, with upkeep that suits you. We explain how the finishes age and what care they need, so you know what to expect.
Built with care. Backed for 10 years.
One in-house team manages the build and keeps you informed at every stage. Your completed garden room comes with a 10-year structural warranty for lasting peace of mind.
Different lives.
Different spaces.
Every room starts with a different need. Here’s how two of them became part of everyday life.
See all our projects“A really well built structure that we’ve really enjoyed using all year round.”
Jane Watson Google review · Garden room with sauna
Read our customer storiesWhat do you
have in mind?
Tell Brian a little about your garden and what you’d love to do with it. We’ll help you explore the possibilities.
Discuss your projectOr call +44 7450 423 777

