Bespoke Garden Offices in Hampshire

ZERO MAINTENANCE

We use plastisol coated galvanised steel giving a superior sturdy structure that will never rot or deretiotate in years to come. So unlike the traditional timber rooms, you will never have to varnish or treat your garden room.

SUPERIOR INSULATION

Our modular panels have a 75mm polyurethane insulated core giving tremendous u-values of 0.13! The very best on the market. This awesome insulation gives massive energy savings. Even in the harshest of winters a small electric heater is more than sufficient to keep a comfortable temperature.

NO PLANNING PERMISSION

Most garden offices fall within the laws of permitted development. However, if you are in a conservation area or you have specific requirements, we can guide you through the process to ensure compliance.

RAPID INSTALLATION

Our unique insulated modular panel system provides a flexible solution to your garden room/office needs

Installed in as little as 5 hours, so you wont have to lift a finger with no mess or stress of a building site. All of the hard work is done in house at our Hampshire based Factory.

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      EXCELLENT  
   Based on 156 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Tony Miller 
 
 
 
 Trustindex verifies that the original source of the review is Google. My Garden Office was installed last Friday with no issues. CS's fitters were very professional. Throughout the purchase process, CS staff gave me regular production updates and helped me plan effectively for the day of installation. I thoroughly recommend CS-Garden Offices. Tony Miller
  
 
      Posted on Google  
   
   Santosh Kakde 
 
 
 
 Trustindex verifies that the original source of the review is Google. The quality work and customer service is amazing. We receive the weekly communication on the project updates which is great.
  
 
      Posted on Google  
   
   Carl K 
 
 
 
 Trustindex verifies that the original source of the review is Google. The office looks great and the guys did a terrific job - quick and friendly. I recommend these guys.
  
 
      Posted on Google  
   
   Aleksandra Kuzmanovic 
 
 
 
 Trustindex verifies that the original source of the review is Google. From start to finish - excellent! I made an extensive research for a month checking different companies, their reviews and materials they use for garden offices. After comparing my findings and quotes, CS- Garden Offices were the best choice from all aspects, material wise it is what I wanted, made with composite - zero maintenance. Budget was respected and Ralph made an effort to answer many questions, talked to us and explained everything so any doubts were removed. We had a regular weekly updates after signing the contract and felt safe with our decision. I am very glad we ended up choosing them as they delivered, and I am in love with my new studio/garden office. The size is 4.8x2.4m, absolutely perfect for my needs. As you can see in the pictures it can fit all furniture that was needed, from my desk, TV and a stand, chair/bed, sink etc. We opted for screw base, installed by them and I believe it's a better option than concrete, they leveled the floor of the studio even though our garden was uneven, so that is perfect. Everyone was nice and polite, guys did a great work installing the base and the studio, electric package was perfect for my needs with 4 double sockets and they checked everything with me, to make sure they place the sockets as I wanted it. The wait for installation was a couple of months, but it was worth the wait. If any questions or issues arises, they are quick to respond and help to resolve. It's an investment well worth and hopefully will also stand the test of time. It's a nice weather now so I haven't had a chance to check how well it keeps warmth, however it's insulated and I believe no issues will occur here. All in all, I am very happy and I recommend to anyone looking for a similar project to use these guys.
  
 
      Posted on Google  
   
   Karina Gutheridge 
 
 
 
 Trustindex verifies that the original source of the review is Google. We have just had installation of our 3.6x3.6m garden room with French doors and two windows completed and we are delighted with the finished product. It was a big investment for us and we considered more budget alternatives but we’re so glad we went with cs-garden offices and would highly recommend them. We went to their showroom and had a great tour and were really impressed with their design and process including the insulation level, speed of assembly and ability to customise. During the customisation nothing was too much trouble and communication was great. Quotes and payments were clear and safe. We were always kept in the know and the installation was incredibly efficient, tidy and finished to the high level we were hoping for. (When we did have one issue with getting the large door frame through our terrace house it was solved rapidly.) Overall a big 5 stars from start to finish, thank you everyone at cs-garden buildings involved in our project.
  
 
      Posted on Google  
   
   Ona Marshall-Edwards 
 
 
 
 Trustindex verifies that the original source of the review is Google. We are so pleased with our office - the team have all been great and professional.  Would highly recommend CS-Garden offices.
  
 
      Posted on Google  
   
   Jonathan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really pleased with our garden office. The team were very efficient, with the keys handed over in 1.5 days. Clean and tidy and very communicative. I can highly recommend.
  
 
      Posted on Google  
   
   paul caldicott 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding. Every member of the team that we have spoken to and met were so professional. So many different choices out there but we are so glad we chose CS-Garden Offices. Kept us up to date with everything at every stage. The ground work team made it so easy for us and the product itself is outstanding quality. Such a professional finish.
  
 
      Posted on Google  
   
   Emily Shoebridge 
 
 
 
 Trustindex verifies that the original source of the review is Google. CS Gardens have been amazing from start to finish. They have kept us updated along the way of our room being manufactured right round to the day that it was delivered. The garden room is excellent quality!
  
 
      Posted on Google  
   
   Mike Williams 
 
 
 
 Trustindex verifies that the original source of the review is Google. They have been great through the whole process.  The online configurator was handy to try and figure out what I wanted, but then added to that with an online consultation to go through the specifics. Pricing was very reasonable compared with some of the wooden structures I was looking at, and I loved that it was an all inclusive price without having to source separate electricians, decorators etc. Install was amazingly quick in less than 3.5 hours on site (although it is towards the small end), and communication through the whole process has been great. Would highly recommend to anyone else.

Bespoke Garden Offices & Rooms – Made in Hampshire, Installed in a Day

Looking to create a peaceful space to work, relax or focus at home? At CS Garden Offices, we design and install bespoke garden rooms and offices across Hampshire and the South. Each building is made to your specifications using advanced insulated panels – ensuring a comfortable, stylish and low-maintenance space all year round.

Bespoke Garden Rooms & Offices – Built Around You

We specialise in fully insulated garden rooms and offices that are warm in winter, cool in summer, and designed to last a lifetime. Whether you need a private workspace, creative studio or multi-purpose garden room, we’ll help you create a space that’s functional, beautiful, and ready to use within days – not weeks.

Our modular buildings are constructed using structural insulated panels (SIPs) in our Gosport-based factory, ensuring exceptional build quality, thermal performance and a clean, modern finish.

The Smarter Way to Add Space

Our garden buildings are ideal for:

✅ Home offices – escape the distractions and work in peace

✅ Garden rooms – a flexible space for hobbies, fitness or relaxation

✅ Creative studios or workshops

✅ Secure garages and storage rooms

✅ Multi-use spaces to adapt as your needs change

With no need for planning permission in most cases, and a typical install time of just one day, you can enjoy your new space with zero stress.

Why Choose CS Garden Offices?

🏗️ Factory-built for precision – each panel made locally in Hampshire

🌡️ Fully insulated for year-round comfort

🧼 Zero-maintenance materials – no cladding, repainting or upkeep needed

⚡ Electrical fit-out included – with sockets, lighting and heating options

🏡 Stylish, modern finish – customisable inside and out

🛠️ Quick, clean installation – usually completed in a single day

Unlike timber builds, our steel-faced SIP panels are built to last – rot-proof, weather-resistant and perfectly sealed for long-term performance.

Bespoke Garden Offices

Bespoke Garden Rooms

Get a free quote today

We’d be more than happy to help you in your journey of finding the most perfect garden room or office for you.

Request a Quote

Designed in Hampshire. Delivered Across the South.

From our workshop in Gosport, we supply and install garden rooms and offices across Hampshire, Portsmouth, Fareham, Southampton, Chichester, Winchester and surrounding areas.

We handle everything in-house – from design and manufacture to groundworks and final installation – ensuring a seamless process and exceptional results.

Start designing your perfect garden room or office today.
Get in touch for a free quote and consultation – and let’s bring your free garden space to life.

📞 Call us on 01329 285563
📧 Email hello@cs-gardenoffices.co.uk
Or request a free quote now.

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Financial options available with Pegasus

Pegasus Finance is proud to have teamed up with CS Garden Offices, offering flexible, affordable finance options to customers wishing to purchase their dream garden office. You will find the perfect option to suit your needs, we’ll make the process of financing the project affordable and stress free.