.png){kind=small}
GARDEN ROOMS & BESPOKE OUTHOUSES — BEXLEYHEATH & KENT
Want a proper extra room without the cost and disruption of a full extension?
Garden rooms
& outhouses.
Built to last.
RedEgg Renovations design and build bespoke garden rooms and outhouses across Bexleyheath, Sidcup, Dartford, Welling, Erith and across Kent. Fully insulated, wired, plastered and finished — built properly on a concrete base, to a fixed price, with a two-year guarantee.
Whats Included
What our garden room & outhouse service covers.
A bespoke garden room or outhouse built by RedEgg Renovations is not a flat-pack garden office dropped on a patio. It's a proper structure — designed and built to your specification, on a concrete base, with full insulation, electrics, plastering and finishing. A room that works in winter as well as summer and adds genuine value to your property.
We design and build garden rooms entirely to your brief — the size, the layout, the cladding, the roof style, the internal finish. Every structure is built to last, finished to a high standard, and backed by our five promises in writing. Our garden room and outhouse service includes:
-
Full design consultation — bespoke to your brief and garden
-
Concrete base installation to the correct specification
-
Timber frame construction — fully engineered and insulated
-
External cladding — timber, composite, rendered or cedral options
-
Roof — flat, pitched, mono-pitch or sedum green roof
-
Doors and windows — including bi-fold, French and aluminium options
-
Full wall, floor and ceiling insulation
-
Internal plastering and dry lining
-
Electrical installation — power, lighting, heating and data points
-
Flooring — LVT, engineered wood or laminate
-
Painting and decorating throughout
-
External decking or patio area if required
Popular Uses
What will your garden room become?
A well-built garden room creates a usable, comfortable space that genuinely extends your home. Here are the most popular uses we build across Bexleyheath and Kent — though we'll build whatever you need.
Home Office
The most popular garden room use across Bexleyheath and Kent since 2020. A properly insulated, heated, wired and plastered garden office — with fast broadband connectivity and a door that closes — transforms the working-from-home experience. Completely separate from the main house and purpose built for focus.
Studio or Creative Space
Artists, musicians, photographers and designers across Bexleyheath and Kent use bespoke garden rooms as dedicated creative studios. We design the space around the specific requirements — including soundproofing for music studios, rooflights for artists, and utility connections for photography darkrooms.
Gym or Wellness Room
A dedicated home gym or yoga studio, properly sized, with rubber flooring, mirrors and the electrical supply for the equipment you need. Increasingly popular across Kent as an alternative to expensive gym memberships and a much better use of garden space than a shed.
Guest Suite or Annexe
A garden room fitted with a shower room creates a self-contained guest annexe — a private, comfortable space for visitors, elderly relatives or adult children returning home. We manage all the plumbing and drainage as part of the build. Planning permission is required for some annexe uses — we'll advise at the consultation stage.
Games Room or Bar
A dedicated games room, cinema room or garden bar creates a genuinely exciting addition to any home in Bexleyheath or Kent. We design and build to whatever brief you give us — from pool table dimensions and screen wall mounting positions to bar counter construction and under-counter fridge connections.
Bespoke Outhouses & Storage
We also build bespoke outhouses, garden stores, garages and utility structures to your exact specification. If you need a properly built timber-framed structure — not a flat-pack shed — with the dimensions, cladding and features you actually want, we'll design and build it from scratch. Get in touch and tell us what you need.
100%
Bespoke — every garden room built to your brief
2yr
Written workmanship guarantee on every structure
1x
Dedicated team from concrete base to final decoration
0
Hidden costs — fixed price agreed before we start
Why RedEgg
Garden room builders in Bexleyheath who build it properly.
The garden room market is full of flat-pack structures assembled on plastic pads — structures that look reasonable in summer photographs but are cold, damp and noisy in winter, and that look tired within three to four years. We don't build flat-pack garden rooms. We build proper structures — on concrete bases, with timber frames, real insulation, plastered walls, hardwired electrics and quality finishes.
A garden room built by RedEgg Renovations is usable all year round, looks and feels like a proper room, and will add genuine value to your property. Every structure we build across Bexleyheath, Sidcup, Dartford and Kent is designed around your brief, priced clearly, and delivered to a finished standard you'll be proud of.
Fixed Price Quote
Full written quote covering base, frame, cladding, electrics and all finishing works.
One Dedicated Team
I’m a paragraph. Double click me or click Edit Text, it's easy.
Same crew handles your garden room from the concrete base to the final coat of paint.
2-Year Guarantee
All workmanship guaranteed for two full years in writing. Any issues — we fix them.
Clean Site Daily
Timber, waste and materials managed and cleared at the end of every working day.
Weekly Updates
You know exactly where the build is at every week throughout the project.
How It Works
From brief to finished garden room.
01
Free Consultation
We visit, discuss your brief in detail — size, use, style, cladding, roof, internal spec — and assess the site.
02
Fixed Written Quote
Full itemised quote covering base, frame, cladding, roof, doors, electrics, insulation and all finishing works.
03
Base & Frame
Concrete base installed, timber frame constructed, roof built and weathertight before interior work begins.
04
First & Second Fix
Insulation, cladding, windows, doors, electrics, plastering, flooring and decoration completed to specification.
05
Final Sign Off
We walk you through the finished room in detail. Keys handed over. Ready to use from day one.
What To Expect
What a properly built garden room really involves.
Building a garden room is a significant investment and it pays to understand what separates a structure that will serve you well for twenty years from one that disappoints within three. Here's what to look for and what to ask when commissioning a garden room in Bexleyheath or across Kent.
Do I need planning permission for a garden room?
Most garden rooms fall within permitted development rights in England and don't require planning permission, provided they meet certain conditions — the structure must be single storey, the eaves must be no higher than 2.5m, the overall height must be no higher than 4m (2.5m for flat roofs), and it must not cover more than 50% of the garden. Structures within 2m of a boundary must be under 2.5m high. Properties in conservation areas and listed buildings have additional restrictions. We check the planning position for every project at the consultation stage.
Why does insulation matter so much in a garden room?
A garden room with inadequate insulation is cold in winter, hot in summer and damp year-round. The insulation specification — both the type and the depth in the walls, floor and roof — determines whether the room is genuinely usable all year or just a summer space. We insulate all garden rooms to a standard that makes them comfortable in any weather, with heating costs comparable to a similarly sized room inside the main house.
How long does a garden room build take?
A standard garden room build across Bexleyheath and Kent typically takes three to six weeks from starting on site to final handover, depending on the size and complexity of the structure. We'll give you a clear, week-by-week build programme as part of your written quote.
FAQ
Frequently asked questions about garden rooms & outhouses.
How much does a garden room cost in Bexleyheath?
Garden room costs in Bexleyheath and across Kent depend entirely on the size, specification and internal finish. A well-built, fully insulated and finished garden room typically starts from £20,000–£30,000 for a standard home office size (around 4m x 3m). Larger structures, premium cladding, bi-fold doors, shower rooms and high-spec internal finishes increase the cost accordingly. We design every garden room to your brief and budget — call us on 07377 213002 to discuss your project and we'll visit for free and provide a full written quote with no obligation.
Do I need planning permission for a garden room?
In most cases, no — garden rooms meeting the permitted development criteria (single storey, under 2.5m eaves, under 4m overall height for pitched roofs and 2.5m for flat roofs, not covering more than 50% of the garden) don't require planning permission. Properties in conservation areas and listed buildings have additional restrictions. We check the planning position for every project at the consultation stage and advise on exactly what applies to your property.
How long does a garden room take to build?
A standard garden room build in Bexleyheath or across Kent typically takes three to six weeks from starting on site to final handover, depending on the size and specification. We'll give you a clear, realistic build programme as part of your written quote so you know exactly what's happening and when throughout the project.
Will a garden room add value to my property?
Yes — a well-built, properly finished garden room adds genuine value to a property in Bexleyheath and Kent, particularly given the sustained demand for home office space since 2020. The key is that the structure must be properly built — well-insulated, fully wired and finished to a high standard. A flat-pack garden room on plastic feet adds little value and can actually be a negative when selling. A proper bespoke build is a different proposition entirely.
Can you add a shower room or toilet to a garden room?
Yes. We include plumbing and drainage as part of garden room builds that require a shower room, WC or utility area. Adding a shower room to a garden room requires drainage to be connected to the existing drainage system — we assess this at the consultation stage and include all plumbing works in the fixed price quote. A garden room with a shower room may require planning permission depending on its intended use — we'll advise at the consultation stage.
Do you cover garden room construction outside Bexleyheath?
Yes. We design and build garden rooms and bespoke outhouses across Bexleyheath, Sidcup, Welling, Erith, Dartford, Bromley and Orpington, and across Kent including Maidstone, Medway, Gravesend, Tunbridge Wells, Tonbridge, Sevenoaks, Canterbury and Whitstable. Call us on 07377 213002 to discuss your project or to confirm we cover your area.
Where We Work
Garden rooms & outhouses across Bexleyheath & Kent.
We design and build garden rooms and bespoke outhouses across Bexleyheath, Sidcup, Welling, Erith, Dartford, Bromley and Orpington, and across Kent including Maidstone, Medway, Gravesend, Tunbridge Wells, Tonbridge, Sevenoaks, Canterbury and Whitstable. Not sure if we cover your area? Call us on 07377 213002.
Get In Touch
Get your free garden room quote today.
Ready to add a bespoke garden room or outhouse to your property in Bexleyheath or across Kent? Get in touch for a free, no-obligation consultation. We'll visit, discuss your brief in detail and come back with a full written design and price. No pressure, no hidden costs — just a proper conversation about what you want to build.
📞
Call Us
✉
Email Us
📍
Based In
Bexleyheath, London
.png)