Bespoke garden rooms in Upminster
From games rooms built around a pool table to home offices and gyms, our garden rooms in Upminster are designed around your garden and the way you live. Our team handcrafts every room on site, and the price includes everything you need to start using it.
Upminster garden rooms with space to entertain
Our garden rooms in Upminster are sized and positioned around your plot, so the finished room sits naturally in your garden and still leaves space for the lawn.
Our Upminster build is a 7.2 x 4.5m games room designed around a pool table, with dual doors, a bespoke decking area, and air conditioning.
Every room is plastered, painted, heated and connected before we leave, and our all-inclusive price means there is no second stage of work for you to arrange.
What sets
us apart
Exceptional garden rooms start with exceptional service. A journey designed for complete peace of mind. We combine premium craftsmanship with expertise, technology and customer care to deliver quality at every stage.
Indoor Essex showroom
Experience build quality, materials & finishes in person
Dedicated design consultant
Guiding you from first ideas to final layout
Floor plans, 3D renders & designs
Clarity before you commit
Dynamic proposals
Clear, transparent and easy to understand
Dedicated project manager
One point of contact throughout
Track your build online
Follow progress at every stage
Full after-sales support
Long after your build is complete
Insurance-backed guarantee
Long-term protection for your build and complete peace of mind
What sets our Upminster garden rooms apart
We design every room from a blank page, and one small team looks after you from your first visit to handover, the same way we work across our garden rooms in Essex.

Games rooms and home cinemas
We have built games rooms and cinema rooms in Upminster and nearby Harold Wood, so we know how to plan a garden pool room around the table, a big screen and comfortable seating. Media walls, specialist lighting and air conditioning can all be added.

Planning in Havering, checked early
More than half of the London Borough of Havering is Green Belt, and the Upminster area includes conservation areas at Corbets Tey and Cranham, so we check your address at the start to make sure the design fits within the rules.

Warm in winter and cool in summer
Insulation and heating are standard in our Upminster garden rooms, and air conditioning is available for rooms that need to stay cool on hot days, just as our games room does.
Garden offices in Upminster
With the District line and c2c trains running into London, many Upminster households split the week between the office and home. On the days you stay local, a garden office in Upminster keeps work out of the house and in its own dedicated space.
Some clients want a room that works as an office by day and somewhere to relax in the evening, so we can plan storage that hides work away and lighting that suits both.
Reliable internet matters for video calls, so every garden office in Upminster has a cable run to it, with the sockets, lighting and heating all included as standard. Our garden office page has plenty more examples.
Visit our showroom up the A12 from Upminster
To reach our indoor showroom from Upminster, head up the A12 for about 22 miles, or roughly 35 minutes, to Unit C, 279 Beehive Lane, Great Baddow, Chelmsford CM2 8LU.
Our Upminster customers started their project with a visit to the showroom, and it is the easiest way to see the finish up close. You can walk round a completed room, compare doors, cladding and flooring, and talk through your plans with us, or book a call first if that suits you better.
What’s included – and what’s possible
Every garden room is delivered fully finished and ready to use, with premium features included as standard. Want more? Choose from a curated list of optional upgrades to create a space that’s truly your own.
Included as standard
Every garden room comes fully finished, ready to use from day one. No hidden extras, just complete comfort built in.
Bespoke Design
Foundations
High-Performance Insulation
Plaster + Paint
Heating
Full Electrical Connection
Internal + External Lighting
Hard-wired Internet Connection
Oak Laminate Flooring
Floor Plans
CGI Renders
Optional upgrades
Choose from a full range of extras to personalise your space. Practical or premium, each one adds function and style.
Air conditioning
Plumbing & Utilities
Media Walls
Specialist Lighting & Smart Home Set-up
Decking & Canopies
Kitchenette + Bar
Underfloor Heating
Demolition
Planning & Building Control
Changing Rooms & Saunas
Storage Rooms
What our customers say
We are so pleased we choose Rooms to Grow to install our Garden Room. The whole team were a pleasure to deal with… all were polite, considerate & nothing was too much trouble and they were also very tidy & cleared up well.
Garden rooms we have built near Upminster
Our games room in Upminster sits alongside projects in Bulphan, Harold Wood, Shenfield and Gidea Park, all within easy reach across Havering and south Essex.
Accurate pricing starts with a conversation
Choose from four simple ways to help get you started.
Frequently asked questions
Can’t find the answer that you’re looking for? Get in touch with us.
Most garden rooms are treated as permitted development, as long as they respect the height and size limits and are used with the house rather than as a separate home. Havering has 11 conservation areas, including Corbets Tey and Cranham near Upminster, where stricter rules can apply, and your address is checked before we agree the final design.
Over half of the London Borough of Havering is Metropolitan Green Belt, much of it in the open land east and south of Upminster. Homes in the town generally sit within the built-up area, so most Upminster gardens can still take a garden room, and we confirm the details for your address first.
The River Ingrebourne runs along the western edge of Upminster near Upminster Bridge, and some land beside it carries a higher flood risk. Most of the town sits well outside the floodplain, and we check your address at survey stage.
We can design the room around your table and the cue space needed on every side, as we did for our 7.2 x 4.5m games room in Upminster. Tell us the size of your table at the design stage and we will plan the layout, lighting and doors around it.
Each Upminster build includes the design and foundations, heating and high-performance insulation, a decorated interior, electrics and double sockets, spotlights and external lights, internet run to the room by cable and oak laminate flooring. Upgrades such as air conditioning and decking, both of which our Upminster games room has, are added as options.
Alongside Upminster itself, we work in Cranham, Corbets Tey, Hornchurch, Emerson Park and North Ockendon. We also cover nearby Brentwood and Billericay.
QUICK & Custom
Build your quote
Want to get started?
Build your quote by completing our guided online form, helping us understand your project and provide a personalised quotation.
Visualise it first
See it in person
Visit our Essex showroom to experience our garden rooms up close.
Once you’ve seen the build quality, materials and finishes in person, we’ll design your own garden room in CGI so you can visualise it in your space before it’s built.












