Annexes, Outhouses and Garden Rooms

Custom-built annexes and garden rooms

Building an annex, garden room or outhouse can help you maximise the space within your garden, whilst adding value to your home. If you’re looking to create a new space without renovating the main home or have an idea that sits outside of your existing rooms, an outbuilding can be a great solution that doesn’t usually require planning permission*. At CDMS Sussex, we design and construct beautiful bespoke garden rooms to help bring your vision to life.

*Outbuildings usually fall under Permitted Development, subject to requirements. If you are unsure of your requirements or would like some guidance around your designs, please do not hesitate to contact us.

Contact Us
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Whether you’ve got a design concept in mind or need help from our team, we are experts in bespoke outbuilding design. Our in-house architect will work with you to create a completely unique garden room that transforms your outside space, reflects your taste and brings your idea to life.

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We’ll ensure your outbuilding is fully fitted out for year-round use, including connection to electricity and proficient insulation. For any projects requiring planning consent, we can help manage submissions and building control, so you have the peace of mind that everything is taken care of.

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Our experience in all types of building and conversion, whether a new construction, historic or period building, means we take the whole environment into consideration when constructing or renovating buildings on your property.

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The finished result will be a stunning and completely bespoke annex or garden room, designed with your ideas and vision at the helm. So, whether you’re looking to build a granny annexe, garden office, games room or studio, get in touch to find out how we can help.


Discover the finest in design and quality

We can accommodate any size appointment. To get in touch call 01444 848278 or make an enquiry below.