How to budget for a garden room
Understand the building guide, site work and specification decisions behind a garden room quotation. A practical way to compare like for like.
Read the guide: How to budget for a garden roomBespoke by Cedar Spaces
Garden gyms in Barnet.
Your equipment, your routine, your own space to move. Design a training room with the floor, headroom and ventilation your workouts need. Designed and built for your Barnet garden by our Harpenden-based team.
Based in HarpendenDesigned around your gardenOffices · Gyms · Golf · Living · Wellness
A garden gym, consideredMade for life
Made for life
in Barnet.
A Barnet gym brief should explain both the training and the expected hours of use. Discuss weights, floor impact, music and the direction of opening windows alongside the equipment layout. These are design considerations, not a promise of sound isolation. The completed Harpenden gyms offer contrasting starting points for finishes and scale.
Start with what mattersGood design
Good design
begins here.
Three conversations to have before settling on the size and specification of your garden gym.
01
Equipment first
Share the exact models, weights and working clearances for racks, treadmills and benches. A floor area alone cannot confirm that equipment fits.
02
Headroom and floor design
Internal ceiling height, lifting movements and equipment loads need to be checked together with the building structure.
03
Sound and fresh air
Discuss ventilation, impact noise and the position of openings in relation to neighbouring homes.
Inspiration from our completed projects
5m x 5m Bespoke Gym in Harpenden
This 5m x 5m bespoke garden gym in Harpenden brings the full fitness experience home. Finished in timeless cedar cladding, the interior features high-end gym equipment, a mirrored wall, and durable flooring — everything needed for strength, cardio, and functional training. Built with planning permission to achieve a 2.5m internal ceiling height, the space feels light, open, and professional. A stunning setup for maintaining fitness and wellbeing without leaving your property.
Project location: Harpenden. An example of our work to help plan your Barnet project.
Explore this projectPlanning in Barnet
Confirm the permissions for your property.
Use Barnet Council’s planning guidance to check the route for your proposal. Give the exact address, intended use, footprint and height, and identify any conservation, listed-building or other restrictions before treating a garden building as permitted development.
Barnet council: Do I need planning permission?Your intended use, dimensions and exact address need to be considered together. Planning permission and building regulations are separate checks.
Read our garden room planning guideA clear starting pointA brief first.
A brief first.
A better quotation.
For your Barnet garden gym, share an approximate footprint, garden photographs and any equipment or services you need. We’ll discuss the site and specification before confirming a price.
What shapes the costThink beyond
Think beyond
the footprint.
Foundations, access, glazing, finishes and services all form part of the project. Specialist equipment and any additional site work need to be specified in your quotation.
Cedar Spaces is VAT registered. Ask for a written total, VAT breakdown and a clear list of what is included.
Read the garden room cost guideA little clarityBefore
Before
you begin.
Do you build garden gyms in Barnet?
Yes. Barnet is within Cedar Spaces’ published Hertfordshire and North London service area. Our team is based in Harpenden. Share your postcode and garden details so we can assess access and the scope of your project.
Will a standard garden room height work for my gym?
That depends on your height, equipment and movements. Internal headroom is less than the external building height. Cedar’s 5 × 5 m Harpenden gym used planning permission to achieve its documented 2.5 m internal ceiling; your own design needs a separate assessment.
What should I check about planning in Barnet?
Use Barnet Council’s planning guidance to check the route for your proposal. Give the exact address, intended use, footprint and height, and identify any conservation, listed-building or other restrictions before treating a garden building as permitted development. Ask Barnet Council about the requirements for your specific address and proposal.
How do I get an accurate price?
Share your postcode, intended use, approximate dimensions and access details. We then discuss the specification and site requirements. The online studio’s base guide is not a complete installed quotation; Cedar Spaces is VAT registered; ask for a written total with the VAT breakdown, inclusions and exclusions.
Can I see real Cedar Spaces projects?
Yes. Our project collection includes photographs and descriptions of completed buildings, including offices and gyms in Harpenden and leisure and golf rooms in St Albans. Each example shows its actual location.
A little knowledge goes a long wayBefore the
Explore our guidesBefore the
first sketch.
Planning your garden room
The checks to make before choosing a garden building, with official planning guidance and local council resources for Hertfordshire and North London.
Read the guide: Planning your garden roomFind the right room for your garden
Compare a garden office, gym, golf studio, multi-purpose room and sauna. Start with how you will use the space, then choose the layout.
Read the guide: Find the right room for your gardenA first idea is a good place to startLet’s make space
Let’s make space
in Barnet.
Tell us your postcode, how you’d like to use the room and a little about your garden. Brian and the team can help shape the next step.
A little about your project.
A few details are all we need to start the conversation.