Cedar-clad garden room with wraparound deck and hot tub

Rochford, Southend, Leigh-on-Sea, Rayleigh & across Essex

Garden rooms, priced upfront. Built in Essex by the man who quotes them.

No "request a callback" games. Configure your room, see a real itemised price in 60 seconds, and book a free survey only when you're ready.

10-year structural guarantee
Insulated as standard
No planning permission needed*
Owner on every job

Four sizes, real prices

Pick a size to start — tweak everything after

Every room is built from scratch on your plot, fully insulated and decorated. These are starting prices; the calculator shows your exact total.

3.0m

The Studio

3.0×2.4m

Home office, gym corner, quiet reading room.

Price this →
4.0m

The Office

4.0×3.0m

Full-time workspace, consulting room, studio.

Price this →
5.0m

The Retreat

5.0×3.0m

Office plus storage, treatment room, snug.

Price this →
6.0m

The Grand

6.0×3.0m

Garden bar, studio, annexe-scale living space.

Price this →

How it works

Three steps, no pressure

01

Quote online

Configure your room and see a real, itemised price straight away.

02

Free survey

We visit, check access and ground, and fix your price.

03

Four-week slot

We book a four-week slot and build on site. Most rooms finish well inside it.

Recent work

Built across Essex

Daytime · wraparound
Corner bifolds
Cedar & composite deck
Lit up at night
Soffit spotlights
Dusk view

Ready to see your price?

No form to see the number move. No callback wall. Just your room, your spec, your price.

Our garden rooms

Four sizes, endlessly adaptable

Start from one of these and change cladding, electrics and base in the calculator — or go fully custom on size.

3.0m

The Studio

3.0m × 2.4m · 7.2m² · from £13,150

Home office, gym corner, quiet reading room.

4.0m

The Office

4.0m × 3.0m · 12.0m² · from £19,850

Full-time workspace, consulting room, studio.

5.0m

The Retreat

5.0m × 3.0m · 15.0m² · from £24,050

Office plus storage, treatment room, snug.

6.0m

The Grand

6.0m × 3.0m · 18.0m² · from £27,850

Garden bar, studio, annexe-scale living space.

Included on every build

— Full insulation — floor, walls & roof

— Cladding to up to two visible faces

— Black corrugated steel to fence-facing sides

— uPVC or aluminium double glazing

— EPDM rubber roof with guttering

— Dry-lined, taped & decorated interior

— Laminate flooring throughout

— 10-year structural guarantee

The elevations above show the front face. As standard we clad up to two faces on show and finish the remaining fence-facing sides in black corrugated steel — quality where it's seen, no wasted spend where it isn't. Plots with more than two faces on view are confirmed at survey.

How it works

From price to finished room

01

Get your price online

Configure your room in the calculator and see a real, itemised total straight away — no form to watch the number move.

02

Free site survey

We visit, check access and ground conditions, and confirm permitted development. This is where your price is fixed.

03

Groundworks & base

Ground screws or a concrete slab go in first — usually a day or two, minimal mess.

04

Your four-week build slot

We book a four-week slot and the room is built from scratch on your plot: frame, insulation, cladding, glazing, roof, electrics and finish. Most builds finish comfortably inside the slot — the extra time is deliberate, so a late delivery or a wet week doesn't push your job back.

05

Handover & guarantee

We walk through the finished room, sort any snags, and hand over your 10-year structural guarantee paperwork.

What we'll need from you

Clear access to the garden, a power supply we can connect to, and your decisions on cladding and layout. That's it — we handle the rest.

FAQs

The questions we get asked most

Do I need planning permission?

Most garden rooms fall under permitted development — single storey, under 2.5m at the boundary, and not covering more than half your garden. We confirm this free during your survey. If your plot needs an application, we'll tell you upfront.

How long does a build take?

We book a four-week slot for every build once the groundworks are in. Most rooms are finished well inside that — the buffer is deliberate, so a delayed delivery, bad weather or an unexpected snag doesn't push your dates back. You'll get firm start and finish dates at survey, and we keep you posted as we go.

Can you build on a slope, or near a fence or drains?

Usually yes. Ground screws handle slopes and awkward access well, and we work around boundaries and services. The survey is where we confirm the approach for your garden.

What's included in the price, and what's extra?

Every price includes full insulation, double glazing, an EPDM roof, a dry-lined and decorated interior, laminate flooring and the 10-year structural guarantee. Cladding upgrades, electrics/heating packs and your base type are the priced options in the calculator — nothing hidden.

Do garden rooms add value to my house?

A well-built, insulated garden room is generally viewed as adding useful, year-round space. We can't promise a figure — that's down to your property and market — but quality and finish matter, which is where we focus.

What does the guarantee actually cover?

The structure — frame, walls, roof and floor — is guaranteed for 10 years from the date of installation against defects in workmanship or materials, including rot and corrosion. Doors, glazing, the EPDM roof membrane, electrical components and any heating or cooling units carry their manufacturers' own warranties, which we pass on to you in full. Workmanship and internal finishes are covered for 12 months. The guarantee assumes the building is reasonably maintained, and it transfers to a new owner if you sell the house — just let us know in writing.

What are the payment terms?

A deposit to book, a stage payment when the base is complete, and the balance on handover. We'll set the exact terms out in writing before any work starts.

About

Built by the man who quotes them

A recent Estuary build

Estuary Garden Rooms is a hands-on building business, not a sales operation reselling flat-packs. Every room is designed, built and finished by a tradesman who's spent years on the tools — the same person who gives you your price.

The upfront pricing isn't a gimmick. After years in the trade, I got tired of the way garden rooms get sold: a pretty brochure, a "from" price that means nothing, and a form standing between you and a straight answer. So I built the opposite. Configure your room, see a real itemised price, and only book a survey when you actually want one.

I work across Rochford, Southend, Leigh-on-Sea, Rayleigh and the surrounding Essex area. No showroom, no sales team, no subcontracted crews turning up — just quality builds with an owner on every job, backed by a 10-year structural guarantee.

Contact

Get in touch

Prefer a quick price first? The calculator's faster than any form. Otherwise, drop me a line.

Direct

07379 517496 hello@estuarygardenrooms.uk

Covering Rochford, Southend, Leigh-on-Sea, Rayleigh & across Essex.

Send a message

Upfront prices · Built in Essex · 10-year structural guarantee

Price your garden room in 60 seconds.

Real prices, not "from" teasers. Fully insulated, dry-lined and decorated as standard — configure your spec and watch the price update live.