Sterling Projects — Home Building and DrivewaysGet a Free Quote
Menu

INSULATED, POWERED, YEAR-ROUND

Bespoke Garden Outbuildings in Kent

Standalone garden offices, gyms, annexes and bars — fully insulated and powered for year-round use.

  • Garden offices - dedicated remote-working space
  • Garden gyms - reinforced floors and dedicated power
  • Annexes & Airbnb cabins - kitchenette and shower room
  • Garden bars & studios - bespoke entertaining spaces

Rated 5 stars on Google · Brett Approved · 5-year guarantee

COVERING ALL OF KENT
Based in Medway · Working countywide
Rendered garden outbuilding with a tiled hipped roof, French doors and grey window frames
GARDEN OUTBUILDING · KENT Outbuildings by Sterling

20+Years of experience

5-year workmanship guarantee

Brett Approved InstallerBrett Approved Installer Rated 5 stars on Google

01 / OUTBUILDING SERVICES

Garden Offices, Gyms & Annexe Outbuildings

Base, frame, insulation, cladding, roofing, electrics, plumbing and interior finish — all handled under one roof. Most outbuildings fall under permitted development, meaning no planning application and a faster start.

Garden Offices

Standalone garden offices with full insulation, power, CAT6 networking and heating. A dedicated workspace that keeps work separate from the house.

Garden Gyms

Purpose-built garden gyms with reinforced flooring, mirrored walls and ventilation. Dedicated power for heavy fitness equipment and smart mirrors.

Annexes & Airbnb Cabins

Self-contained garden annexes with kitchenette, shower room and sleeping area. Ideal for guests, older family members or short-let income.

Garden Bars

Bespoke garden bars and entertaining rooms with bifold doors, bar units, ambient lighting and heating for year-round hosting.

Studios & Workshops

Art studios, music rooms, hobby workshops and creative spaces built to your specification with acoustic, lighting and storage options.

Insulation & Weatherproofing

Full wall, floor and roof insulation plus EPDM or tiled roofs. Comfortable, dry and energy-efficient outbuildings for year-round use.

Electrical & Networking

Certified electrical installation — sockets, lighting, heating, CAT6 networking — supplied from your main house consumer unit.

Plumbing & Shower Rooms

Kitchenettes, WCs and shower rooms plumbed in for annexes and larger outbuildings, with waste and water connections to the main supply.

Planning & Permitted Development

Advice on permitted development rules and full planning applications where your outbuilding's size or use requires it.

02 / KENT OUTBUILDING PROJECTS

Recent Garden Outbuilding Projects

A sample of the garden offices, gyms and annexes we've built for homeowners across Kent.

View all projects

03 / CUSTOMER REVIEWS

What Our
Customers Say

Real reviews from satisfied customers who chose Sterling Projects for their garden outbuilding

Google reviews
Checkatrade reviews

Checkatrade Reviewer

Medway · Checkatrade · Verified review

We wanted somewhere to put our gym equipment so we can workout, but also needed storage for garden equipment etc, which we got exactly what we wanted. I can honestly say whatever you ask for you will get so much more, and Marc is full of really good ideas. I would definitely recommend Sterling Projects.

Shibu Chacko MBE

Medway/Rochester · Google · Verified review

Sterling Projects recently completed a driveway installation for me, and I am extremely pleased with the results. The workmanship was of a very high standard, and the team demonstrated professionalism throughout the entire project.

Pat Martin

Tonbridge · Google · Verified review

Absolute Top service from these Men From start to finish at very competitive rates. Very polite and hardworking people that turn up rain or shine, and do the job they came to do. I made a small change to how i wanted things after they had started and it wasn't a problem, they just got on with it and made it happen. We are over the moon with the outcome and would highly recommend them for all your building needs.

James Hill

Sittingbourne · Google · Verified review

Used Sterling projects for my new build property replacing the standard issue patio with a larger area of Porcelain patio tiles extended out further. Straight from the outset the attention to detail & customer service was incredible, the team are brilliant. The end result even better than expected and has completely transformed what was a originally a dull area in the garden. Highly recommended!!

Martin Astin

Maidstone · Google · Verified review

Fantastic service from start to finish - Marc made it very easy for us as we had been messed around by a previous builder and lost confidence to be honest. He is super reliable and delivered on everything which had been agreed! ++++++++

Jack Rogers

Medway · Google · Verified review

Sterling Projects were incredibly professional from the onset. They cleared a large front garden with big tree stumps, Fitted concrete fencing posts with wooden fence panels and laid a big block paving driveway with soak away. Anytime there was an issue such as water mains where the fence post needed to go they were able to create a solution that upheld the original vision of the project. Sterling Projects were also incredibly tidy and courteous towards the neighbors. They completed the project in a quick timeframe whilst battling a heatwave, also charged an incredibly fair price.

Ashley Dallas

Bexley · Google · Verified review

Had my back garden all levelled and re done also turned my front garden into a driveway, great work and great people and easy to deal with, would definitely recommend to anyone who is requiring any work

Tommy

Sevenoaks · Google · Verified review

An unbelievable job. I am so happy with the driveway Sterling done for me. It's been 3 months on now and it's absolutely perfect. So blessed to have found a good team for a very fair price. Thanks so much again Marc and Team !!
Tommy — customer photo 1

Rikki Thomas

Minster On Sea · Google · Verified review

Sterling Projects absolutely transformed our muddy new build garden. Keeping in mind we asked for a simple, low maintenance garden that would be suitable for use all year round - they SMASHED the assignment! They were professional and respectful throughout the whole project. We couldn't be happier that we chose Sterling Projects for our garden! Thank you so much!

Louie Barnes

Canterbury · Google · Verified review

Completed the job well within the timescale provided. Great communication along the way too. Would definitely recommend!

Michael Brain

Google · Verified review

From quote to completion both John and Marc made the process seamless. They have transformed my out of date garden into somewhere perfect for my child to play and the adults to relax. Thank you guys and your team for your great work. Would definitely recommend and use again

Olivia F

Google · Verified review

We had a few companies come out to quote for our driveway renovation, but Marc and John from Sterling Projects stood out straight away. They were the only ones who pointed out potential issues with some of the ideas we had, rather than just telling us what we wanted to hear. Even before we received the quote, we already knew they were the people we wanted to go with because they were so genuine, knowledgeable and easy to get along with. We were lucky enough that they could fit us in quickly after another project was delayed, and they've been brilliant from day one. The finished driveway looks even better than we imagined, or even what ChatGPT could come up with! Whenever we were undecided on colours or styles, they gave honest advice without being pushy, and we're so glad we trusted them. We ended up choosing Autumn Gold paving, which wasn't our original choice, but now we honestly can't imagine having anything else. The whole job was completed efficiently, the site was kept tidy throughout, and everyone was respectful and professional. What really impressed us was that they were happy to offer advice and ideas for other projects we're planning, without trying to sell us anything. Sterling Projects more than just driveways, so we'll definitely be getting them back for future work. We honestly couldn't recommend Marc, John and the team highly enough. Thank you so much!

Sallyann Povey

Google · Verified review

This is the second time I have used John and his team, which says it all! Difficult to trust these days but I don't have that worry with John I know im in safe hands. Great job done to my drive, thank you again 👍 👏

David Coldwell

Google · Verified review

We decided to have our out of date driveway updated and have the space upgraded to more accessible and family friendly space. After online contact John was efficient in providing an onsite survey, listen to our needs and offering expert advice. John showed us a glossy brochure of possible blocks and materials that could be used, gave us confidence and vision of how our tired drive could be transformed. A few days later John and Marc provided us with a very competitive quote and gave us options regarding our boundary fence. A date was agreed for John, Marc and the team to start the project. They arrived promptly each day, worked effectively, kept the site tidy, remained professional at all times and were courteous to our neighbours. The old driveway was broken up and cleared quickly and the old concrete and rubble removed on the same day. Once the blocks arrived the team worked at a rate of knots and started to lay the masterpiece. The transformation was amazing, turning the tired old space into a stylish and useable space. Marc and John have an eye for detail and ensured everything was perfect. We are so pleased with the drive and over the moon with the finish. John and Marc also installed the new composite fence to finish off the modern look. We fully RECOMMEND Sterling Projects to undertake a new driveway, landscaping or building projects you have in mind. Don’t hesitate and get in touch for a Sterling Job.

Anita

Google · Verified review

We are over the moon with the beautiful garden Stirling project built for us. They achieved great things in only 4 days. Fast friendly and efficient and are fair on their pricing. Have recommended to friends.

Levi Reddick

Google · Verified review

Very happy with our garden! Quick and easy process, was happy to make changes throughout the job and the team are all very friendly and helpful! Would highly recommend 👌

Chris Lambert

Google · Verified review

We recently had our garden completely renovated by Sterling Projects, and the results have exceeded all expectations. From the very first consultation through to the final touches, their team demonstrated exceptional skill, professionalism, and attention to detail. Their expertise was evident in every stage of the project. They took the time to understand our vision, offered thoughtful suggestions, and executed the design flawlessly. The craftsmanship is outstanding—everything from the paving and landscaping to the finer details has been completed to an incredibly high standard. What truly set Sterling Projects apart was their professionalism. The team was punctual, respectful, and kept us informed throughout the entire process. They maintained a clean and organised worksite, and nothing ever felt like too much trouble. It was clear they take real pride in their work. The quality of the finished garden speaks for itself—it’s both beautiful and built to last. We’ve already received so many compliments, and it has completely transformed how we use and enjoy our outdoor space. We wouldn’t hesitate to recommend Sterling Projects to anyone looking for a reliable, skilled, and high-quality team. A genuinely 5-star experience from start to finish.

Katie Millgate

Google · Verified review

We have just had our drive way and stairs done by Sterling Projects and we could not be happier with the results. The work has completely transformed our driveway and the space outside our house. We could not fault the work completed. Marc and John were extremely knowledgeable and talked us through every step ensuring we were happy with the work that was going ahead. The work was completed in a timely manner, the progress daily exceeded our expectations. The attention to detail is immaculate and we have had many compliments on the work already! We would recommend Sterling Projects to anyone, thank you so much!!

Checkatrade Reviewer

Medway · Checkatrade · Verified review

We had a few companies quote for our driveway, but Marc and John stood out immediately. They were honest, knowledgeable and the only ones to highlight potential issues instead of just agreeing with our ideas. The finished driveway is even better than we imagined. They recommended Autumn Gold paving over our original choice, and we're so glad we trusted them. The whole team was professional, kept everything tidy, and we'll definitely use Sterling Projects again. We couldn't recommend Marc, John and the team highly enough. Thank you!
Checkatrade Reviewer — customer photo 1

Checkatrade Reviewer

Medway · Checkatrade · Verified review

Was very helpful at sorting planning, sourcing materials, they took great care in explaining and how each area of the building would be carried out. Got the build completed quickly and was so impressed with the care and pride in the work. Great after care. Highly recommended.

Checkatrade Reviewer

Medway · Checkatrade · Verified review

We wanted an extension built, and what we ended up with totally exceeded our expectations. We had a rough idea of what we wanted, but with lots of communication with Marc, he came up with some very good ideas, which meant we could get everything we wanted and so much more. The end result of our extension was perfect. There was so much time, effort and dedication put into this building work we have no complaints at all.

04 / ACROSS KENT

Garden Outbuildings
Across Kent

We build garden outbuildings throughout Kent’s towns, villages and rural areas.

Related Local Building Services

Sterling Projects covers Kent, Medway and BexleyMap of Kent, Medway and Bexley, with our base in Medway marked in red. We work throughout the county, including its towns, villages and rural locations.OUR PATCH / KENT & BEXLEYBexleyKENTENGLISH CHANNELMEDWAYOUR HOME BASEN
Based in Medway. Covering Kent & Bexley. Boundary: ONS / OS © Crown copyright 2023

05 / FAQs

Garden Outbuilding
FAQs

Common questions about garden offices, gyms, annexes and outbuildings

Do I need planning permission for a garden outbuilding in Kent?
Most garden outbuildings fall under permitted development and don't need planning permission, provided they stay under 2.5m eaves height within 2m of a boundary, cover no more than 50% of the garden, and aren't used as self-contained living accommodation. Annexes intended for sleeping or as Airbnb lets often do require planning or a lawful development certificate — we'll advise you during the quote.
What's the difference between an outbuilding and an extension?
An extension is attached to your house and typically adds integrated living space — a bigger kitchen, utility room, downstairs WC or additional bedroom. A garden outbuilding is standalone: a separate building in your garden for uses like a home office, gym, annexe, studio or bar. Outbuildings are usually quicker to build, often don't require planning permission, and keep the function separate from your main home.
How long does it take to build a garden outbuilding?
A typical insulated garden office or gym takes 3-5 weeks from groundwork to handover. Larger annexes with plumbing and shower rooms take 6-10 weeks. Timelines include base, frame, insulation, cladding, roofing, electrics, networking and interior finish.
Can I run water and a bathroom to my outbuilding?
Yes — we regularly install kitchenettes, WCs and shower rooms in annexes and larger outbuildings, connecting to the main water supply and waste. Note that outbuildings with sleeping accommodation and independent living facilities may require planning permission rather than permitted development.
Is a garden office warm enough to use in winter?
Our outbuildings are fully insulated in the walls, floor and roof and fitted with double-glazed windows and doors. With electric heating or an air-con/heat pump unit they're comfortable to work in year-round, with much better thermal performance than a standard shed or summerhouse.

06 / GET IN TOUCH

Tell Us About
Your Project

Garden offices, gyms, annexes and bars, insulated and powered for year-round use. Tell us what you have in mind and we'll get back to you to arrange your free, no-obligation quote.

07951 541971 WhatsApp Us contact@sterlingprojects.uk LOCAL TEAM · FREE QUOTE · NO OBLIGATION

Your next project starts here.

We'll use your details to respond to your enquiry. Privacy policy.