How Much Does A DIY Garden Room Cost? Self Build on a Budget
A self-build garden room offers an excellent and cost-effective way to enhance your home and lifestyle on a budget. They can allow you to extend your living space, work from home, create your dream home gym, or provide the perfect garden art studio.
With insulated garden room options that you can enjoy year-round, self-build garden room kits offer a great solution at a cost you can afford.
DIY Garden Rooms can add extra space to your home, increase property value, and usually don’t require planning permission meaning you save time and cost on the build.
At Pent Haus, we offer self-build garden rooms that are not only affordable but also quick to install, customizable, and built to last.
For example, a 3m x 3m flat pack garden room kit with insulation and electrics can start at just £9,786 for a self-build option, compared to a bespoke, fully installed room which can exceed £30,000.
1. Self-Build Garden Rooms vs. Installed Garden Rooms
Opting for a build-your-own garden room kit can save significantly on installation costs. At Pent Haus, our flat pack insulated garden rooms are designed for DIY assembly, requiring just 1–2 people and no specialist skills or tools.
Most can be constructed in only three days! Prefer a hassle-free option?
We also offer professional installation services to save you time too
Use our garden room configurator to see how much your custom DIY garden room kit could cost and get an instant quote!
2. Bespoke vs. Standard Garden Rooms
A bespoke flat pack garden room might be ideal if you need a unique size or design, or have a specialised function in mind (like a science lab!), but it typically comes with higher costs. Instead, explore pre-designed modular options that let you customise walls, windows, flooring, and roofing. There is still a wide range of designs to choose from to suit most needs.
At Pent Haus, we offer a balance: pre-designed kits with flexible configurations. Whether you’re creating a compact garden office kit for a small space or a larger multi-function garden room, our solutions are budget-friendly and versatile.
You can even build our kits on steep slopes, and with our kits, you can build up to your boundary to get the maximum use out of your garden space.
3. Does the size affect the cost?
The size of your garden room is a major cost factor.
While 3m² rooms are common starting points, larger spaces often provide better long-term value. In the long-run only building your garden room once and allowing extra space for flexibility may save you time and money.
Adding more floor space to your garden room may cost less than you expect while significantly enhancing functionality. Plus, a garden room can add value to your home’s property value so building it with extra space in mind may help with this too.
We recommend experimenting with different sizes to find the perfect fit for your budget and needs.
4. Construction Materials
Don’t compromise on quality or you may end up with costly maintenance or even replacing your garden room altogether!
Choosing the right materials ensures durability, low maintenance, and peace of mind.
Options include:
- Composite garden room kits: Low-maintenance, modern, and eco-friendly.
- Timber-frame kits: A classic choice offering sustainability and aesthetic appeal.
- Insulated SIP panels: Ideal for year-round use with excellent thermal efficiency.
Pent Haus prioritises quality and sustainability, offering premium materials backed by a 10-year guarantee.
We clad the exterior of our studios with ToughWood™ cladding. It looks like wood, but has none of the disadvantages of natural wood! Made from sustainable resources, it is incredibly long lasting and low maintenance.
5. Utilities and Heating
This is often forgotten, but it is really important to consider the long term costs of your Garden Room. How good is the insulation? How much heat will it hold in winter? Is it truly an all-year-round Garden Room?
We recommend ensuring your garden room has excellent insulation to keep your bills low! Saving money on your build may cost you in the long run.
Our Garden Room Kits will include structurally insulated panels (SIPs) which offer highly efficient thermal values and exceptional strength. The wall thickness is 100mm & the floor is 130mm, making our studios warm in the winter and cool in the summer, with good sound-proofing.
6. Ease To Build + What is Included
How easy is the Garden Room going to be to build? Some garden rooms can be complex, and mistakes in the building process can be costly to correct by a professional, or may cause you to have to re-build or buy extra materials.
Look for a Garden Room that is easy to build and includes everything you need to help you stay on budget. For example, we CNC-cut your chosen interior finish saving you the effort of trying to cut awkward angles in panels.
Our Garden Room Kits are easy and quick to build! You should be able to assembly your dream garden room in just 1-2 days with 2 people.
7. Simplicity to Build
A self-build garden room is a budget friendly way to add space to your home, and can be much quicker than a traditional home extension, plus often you don’t need planning permission! If you are planning to build your garden room yourself you will need to consider how simple your kit will be to build.
You need to find out how long it should take you to build when you are doing your research, as well as finding out how long delivery will take.
You also need to find out what skill level is required to build your garden room, as well as how many people will take. For example – will you need to make any cuts to the panels yourself, and what equipment will you need? This can easily increase your build budget if you need to purchase extra equipment to finish your build.
Pent Haus Garden Rooms are designed to be easy to build, with no specialist skills required! Our Garden Rooms can be built within 3 days with 2 people.
Plus, we CNC-cut your chosen interior finish saving you the effort of trying to cut awkward angles!
5 Things to Consider in Your Garden Room Budget
- Foundations
A durable foundation is crucial for your garden room’s longevity. Ensure your supplier includes this in the package or factor it into your costs. Poor foundations can lead to structural issues later. - Clearing the Area
Budget for clearing the site. If there are existing buildings, trees, or shrubs, you might need to hire specialists or pay for waste removal. This step is often overlooked but can add time and cost.
- Utilities and Insulation
To use your garden room year-round, budget for electrical connections, heating, and, if needed, plumbing.
- How will you be assembling your Garden Room? Our Garden Rooms can be assembled by 2 people in 3 days – no skills required! However, if you want extra help assembling your room, don’t forget to budget for it! At Pent Haus, we provide in-house utility installations, ensuring timely and professional service.
- Interior and Exterior Finishes
Quality finishes enhance the aesthetics and functionality of your garden room. DIY decoration like painting can save money, but choose pre-insulated panels to reduce heating costs. Pent Haus offers insulation included in its flat pack garden room kits for maximum efficiency.
- Planning Permissions
Check if planning permissions are required. Most garden rooms fall under permitted development rights, but always confirm with local authorities to avoid unexpected expenses.
Pent Haus Garden Rooms are designed to be easy to build, with no specialist skills required! Our Garden Rooms can be built within 3 days with 2 people.
Plus, we CNC-cut your chosen interior finish saving you the effort of trying to cut awkward angles!
In Conclusion
Building your dream garden room could be less expensive and easier than you think. Just ensure to consider all these points when you build your budget. They can be a great budget friendly way to upgrade your lifestyle without moving house!
Ready to transform your garden space into something truly special? With our easy-to-build garden room kits, you can design your dream garden room today and get a free instant quote to see just how affordable it can be.
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