Now booking bespoke builds for 2026 — Hampshire, Berkshire & Oxfordshire
A cedar-clad bespoke garden room at dusk, warm light glowing through full-height glazing onto a dark composite deck

Bespoke spaces,
built to last.

Garden rooms, extensions and commercial fit-outs — drawn from scratch and built on site across Hampshire, Berkshire and Oxfordshire.

Why Watson & Dalton

Built around
how you live.

Twenty years in the trades, two founders on every project, and a standard we don’t move on.

Start a conversation

Every space is drawn from scratch and built on site. No prefabricated pods, no bolt-together kits — the design starts with your plot, your light, and how you actually want to use the room.

Detailed CAD drawings come with every proposal, so you can see exactly what you are getting — every material, every measurement — long before a foundation goes in.

Most garden rooms and many extensions can be built without a full planning application. We handle the drawings, the paperwork and the building regulations from beginning to end.

The people who quote your project are the people who build it. No subcontracted chains and no handovers — one team from the first site visit to the final walkthrough.

Technical elevation drawing of a bespoke garden room, 6.0m wide by 2.4m high 6.0 m 2.4 m CEDAR CLAD ELEVATION — SCALE 1:50 W&D
Cedar cladding lit by low winter sun, bare branch shadows raking across the timber

A standard we
don’t move on.

Craftsmanship

Fully insulated for year-round use, timber and composite cladding, argon-filled double glazing — built to the specification we would want at home.

Certainty

A fixed scope, clear costs and a programme you can plan your life around. You will always know what is happening, and when.

Precision

Levels, lines and tolerances that hold up to close inspection — because the details are what you live with every single day.

Delivered

We finish what we start, on the date we agreed, and we walk you through every detail of the space before we hand it over.

What we build

Three services.
One standard.

Finished cedar-clad garden room with a black composite deck, framed by an ivy hedge
01 — Bespoke Spaces

Garden Rooms

Hand-designed and site-built rooms that become the best space in the house. Offices, studios, gyms and bars — insulated, glazed and finished for year-round use.

Home officeStudioGymGarden barAnnexe
Enquire about a garden room
A newly finished, empty extension interior with raking daylight across a wood floor
02 — Residential

Extensions & Conversions

Rear extensions, loft rooms and garage conversions — unlocking the space you already own. Structural work through to final finish, handled by one team.

Rear extensionsLoft roomsGarage conversions
Enquire about an extension
Bespoke birch-ply joinery wall with a recessed display niche in a completed commercial fit-out
03 — Commercial

Commercial Fit-Out

Offices, education and hospitality spaces — bespoke joinery and interiors that perform as well as they look, delivered around your opening date.

OfficesEducationRetailHospitality
Discuss a commercial project

How we work

Four steps.
No surprises.

  1. 01

    Site visit

    We come and look, listen, and tell you honestly what the plot will take — before anyone talks money.

  2. 02

    Drawings

    Detailed CAD drawings and a fixed written proposal. Every material, every measurement, agreed up front.

  3. 03

    Build

    Our own team on site, start to finish. Foundations, frame, cladding, glazing and finish — no subcontracted chain.

  4. 04

    Handover

    We walk you round every detail, hand over the keys and the paperwork, and stay on the end of the phone.

Our work

Recent projects.

Cedar-clad garden room with grey bifold doors, a black composite deck and an ivy hedge behind
Cedar garden roomBespoke space
White composite garden office with bifold doors open onto the lawn, desk and chair inside
Garden officeHome office
Cedar-clad garden room with full-height bifold doors under a blue sky
Garden room, bifolds openBespoke space
Garden office seen through the branches of an apple tree, bifold doors folded back
Garden officeHome office
Close view of vertical cedar cladding meeting the glazing, lit by afternoon sun
Cedar-clad annexeBespoke space
Corner detail of vertical cedar cladding meeting the roof edge of a garden room
Cedar cladding detailCraft
Garden room interior with two teal armchairs, yellow cushions and a wall clock
Garden room interiorInterior

Featured

Your garden.
Your best room.

A room a few steps from the back door that works all year — quieter than the house, warmer than the shed, and built properly enough to add real value.

Talk to us about yours
Looking out from inside a garden room through open bifold doors onto a lawn and house beyond
20+Years in the building trades
100%Bespoke — never off the shelf
3Counties covered
2020Founded by two friends

About us

Two friends.
Twenty years.
One standard.

Watson & Dalton was founded in 2020 by two lifelong friends who had already spent two decades on site together — across residential builds, conversions and commercial fit-outs.

That history is the whole point. We quote what we can deliver, we build it ourselves, and we would rather turn a project down than rush it. It is a slower way to grow a company and a much better way to build.

Get in touch
A finished Watson & Dalton project

Get in touch

Let’s build
something that lasts.

Tell us roughly what you have in mind — we will come and look, tell you honestly what is possible, and put it in writing. We aim to reply within two working days.

Call +44 7846 796056
We reply within 2 working days.

Thanks — that’s with us.

We read every enquiry ourselves and will come back to you within two working days. If it’s urgent, call +44 7846 796056.