Quiet, warm and ten steps from the back door
- Insulated for winter and summer
- Power, lighting and fast internet
- Room for a desk, shelves and a sofa
Typical garden offices from £16,500, fitted
Typical 3 × 4 m · insulated · 4–6 weeks
Reviews
What homeowners say
4.9
Verified customer reviews, collected by email, shared with permission.
SSarah W.Berkhamsted
“I'd spent two weekends ringing round and got nowhere. Filled the form on a Sunday night, had a call Monday lunchtime and three visits booked by Thursday. Went with the second builder, the office went up in nine days and I've worked from it every day since.”
DDave K.Amersham
“Main thing for me was the floor. I lift heavy and two companies I'd found myself just said "it'll be fine". The builder they sent actually talked about joist spacing and put in a reinforced slab section under the rack. No pushy follow-up calls either.”
PPriya & TomSt Albans
“Our garden is tiny and access is through the house, so we assumed nobody would take it on. All three builders came to look. One explained exactly what would fit without planning permission, which saved us a lot of worry. Lovely result.”
JJenny R.Tring
“This was a big decision for us, an annexe so Mum could be close but still have her own front door. The team checked in after each visit and were honest that one quote was missing the shower room drainage. That alone saved us about £4,000 of surprises.”
Our reply: Thank you Jenny. So glad your mum is settled in. Enjoy the summer in it!
MMark H.Harpenden
“Good service and the room is excellent. Only knocking a star because one of the three builders took over a week to send his quote and I had to chase. The matching team did step in when I mentioned it, to be fair.”
Our reply: Thanks Mark, that's fair feedback. We've since added a 5-day quote deadline for every builder we work with.
AAlison B.Great Missenden
“We're in the AONB so I was dreading planning. The builder I chose had done three studios within a couple of miles and knew exactly what the council would accept. North roof light is perfect for painting. Couldn't be happier.”
CClaire T.Tring
“Quick, friendly and no hard sell. Two of the three builders were excellent and we had a hard time choosing.”
RRob & HannahHarpenden
“Exactly what it says. Three proper quotes in a fortnight and someone checking in to make sure they turned up.”
NNeil P.Chesham
“Saved me hours of ringing round. The builder we chose was booked through local word of mouth, which says it all.”
SSophie L.Hemel Hempstead
“Really clear advice on what needed building regs and what did not. Felt looked after from start to finish.”
GGareth M.Amersham
“Great matches. One visit got moved twice, but the team sorted it the same day.”
Free quotes in 1 minute
Price up your garden office
Answer 3 quick questions. Up to 3 garden room builders who work near you will contact you to arrange a free site visit and a written quote.
- Local builders onlyThey already work in your town
- Insured and establishedPublic liability cover and 3+ years trading
- Written quotesCompare like for like
- No fee to youBuilders pay for introductions
Garden room ideas
See what your garden could hold
Garden room design ideas. Tap any image to enlarge.
How it works
From idea to a booked build in four steps
- Tell us about your roomPick the room, tell us about it in your own words, then the size and when.
- We match up to 3 buildersWe do not build. A person checks your request and picks independent builders who work in your postcode.
- Free visits and written quotesCompare like for like. Say no to anyone. It costs you nothing.
- Your build is booked inPick the builder you like and agree a start date with them.
Vetted means checked
How we vet every builder
A builder gets no requests until every check below is done and on our records. We repeat the insurance, identity and company checks at least every 12 months.
- Public liability insuranceWe see the policy document and record the insurer, the amount of cover and the expiry date. When the policy expires, the builder stops getting requests automatically until we see the renewal.
- Identity checkedWe check who runs the business.
- Established: 3+ years tradingWe look the company up on Companies House, or check a sole trader’s trading history.
- Signed agreementThey sign our lead agreement before they see any request.
- They get in touchThey must contact at least 90% of homeowners within 48 hours, or they stop getting requests.
The badges you see
If you gave us your email, we send you each matched builder’s name and badges. A badge only shows while the check behind it is in date, and we never show one we have not checked ourselves.
Every matched builder
- Insured £…with their amount of cover
- Company checkedlinked to its Companies House record, or “Sole trader checked”
- ID checkedwe know who runs the business
Some builders also have
- Insurance-backed guaranteeonly if they offer one and we have checked it
- Scheme memberfor example TrustMark or the FMB, checked on the scheme’s own register
Cost guide 2026
What does a garden room cost in Herts & Bucks?
Every price here is a fully fitted, insulated room with power and lighting. Size sets the starting point. What you use the room for decides what gets added.
Guide prices for fitted rooms, including VAT. Your written quotes depend on your plot.
| Size | Good for | Typical price |
|---|---|---|
| Up to 3 × 3 m | Office for 1 | £12,500 – £18,000 |
| About 4 × 3 m | Office, gym, studio | £18,000 – £29,000 |
| 5 × 4 m and up | Annexe, multi-use | £32,000 – £58,000 |
What each room adds to the price
Garden office
The simplest build: an insulated room with power, lights and heating.
- Armoured power cable dug in from the house
- Data cable or mesh Wi-Fi for video calls
- Heater or air-con for year-round use
Typical price: from £16,500
Garden gym
Heavy kit and hard training need a stronger, cooler room.
- Reinforced floor or concrete slab for racks and dropped weights
- Ventilation or air-con: a working room heats up fast
- Rubber flooring, mirrors and extra sockets
Typical price: from £21,000
Garden studio
Light and sound decide the spec.
- Sound insulation if you play or record
- Bigger glazing or roof lights for even daylight
- A sink needs a water supply and waste run
Typical price: from £18,500
Garden annexe
A room someone sleeps in is the biggest step up.
- Building regulations sign-off for sleeping space
- Shower room or WC with drainage to the main sewer
- Kitchenette, more heating and often planning permission
Typical price: from £39,000
What moves any price
- Size and height
- Foundations: ground screws, pads or a slab
- Cladding and roof finish
- Amount and type of glazing
- Distance for power, water and drains
- Access: can materials reach the garden?
Where we work
Garden rooms across Herts & Bucks
Type your postcode for local planning notes and builders who work near you.
Get your personal garden room brief: planning at your address, building regs, a guide price.
- Berkhamsted
- Northchurch
- Tring
- Hemel Hempstead
- Kings Langley
- Harpenden
- St Albans
- Chesham
- Amersham
- Great Missenden
- Aylesbury
- Beaconsfield
- Gerrards Cross
- Watford
- Rickmansworth
- Chorleywood
- Bushey
- Radlett
- Borehamwood
- Potters Bar
- Hatfield
- Welwyn Garden City
- Welwyn
- Hertford
- Ware
- Hitchin
- Letchworth Garden City
- Stevenage
- Baldock
- Bishop's Stortford
- Hoddesdon
- Cheshunt
- High Wycombe
- Marlow
- Princes Risborough
- Wendover
- Buckingham
- Little Chalfont
- Chalfont St Giles
- Chalfont St Peter
Questions people ask
Do I need planning permission for a garden room?
Often not. In England most outbuildings count as permitted development, within limits on height, size and position. Rules are stricter in conservation areas and the Chilterns National Landscape. Your builder checks this for your plot.
How long does it take to build?
Most installs take 4 to 8 weeks once the design is agreed. Lead times change through the year.
Can I use it all year round?
Yes. The builders we work with make insulated, double-glazed rooms that stay usable in winter with a small heater.
What does Garden Room Match cost me?
Nothing. The service is free for homeowners. Builders may pay us a fee for each introduction.
Who will see my details?
Only the builders you are matched with, up to 3. We never sell your details to anyone else.
What will you use it for?
And moreSnugs, playrooms, workshops, storage“Three local builders, one free visit each, and no pressure.”
Our promise to every homeowner in Herts & Bucks
- vetted local builders, at most
- 3
- cost to you, ever
- £0
- towns with local planning notes
- 40
What homeowners say4.9 ★ · 138 reviews
Verified customer reviews, collected by email, shared with permission.
Garden offices
Leave the kitchen table. Walk to work.
A separate room changes how working from home feels. Close the door at six and the day is done.
- Insulated for winter and summer
- Power, lighting and fast internet
- Room for a desk, shelves and a sofa
Typical garden offices from £16,500, fitted
Get garden office quotesOr ask for a call backPlanning a garden office? Read the guide: sizes, power and costs →
Garden gyms
Train whenever you want, twenty steps away
No drive, no membership, no waiting for the rack. Builders reinforce the floor and plan the ventilation.
- Reinforced floors for heavy kit
- Ventilation and rubber flooring
- Mirrors, speakers and a TV wall
Typical garden gyms from £21,000, fitted
Get garden gym quotesOr ask for a call backBuilding a garden gym? Floors, ventilation and costs explained →
Studios
Give your hobby a room of its own
Paint, record, sew or build models without packing it all away every evening.
- Large glazing for natural light
- Sound insulation for music
- Sinks, storage and work benches
Typical studios from £18,500, fitted
Get studio quotesOr ask for a call backSoundproofing a garden studio: what works →
Annexes
A guest room that is not in the house
Somewhere for parents to stay, a teenager to retreat to, or friends at the weekend.
- Heating and a sleeping area
- Optional shower room and kitchenette
- Builders handle building regulations
Typical annexes from £39,000, fitted
Get annexe quotesOr ask for a call backGarden annexe rules in Herts & Bucks: planning and building regs →How it works
From idea to a booked build in four steps
- Tell us about your roomPick the room, tell us about it in your own words, then the size and when.
- We match up to 3 buildersWe do not build. A person checks your request and picks independent builders who work in your postcode.
- Free visits and written quotesCompare like for like. Say no to anyone. It costs you nothing.
- Your build is booked inPick the builder you like and agree a start date with them.
Free site visitsVetted buildersPlanning guidance
Vetted means checked
How we vet every builder
A builder gets no requests until every check below is done and on our records. We repeat the insurance, identity and company checks at least every 12 months.
- Public liability insuranceWe see the policy document and record the insurer, the amount of cover and the expiry date. When the policy expires, the builder stops getting requests automatically until we see the renewal.
- Identity checkedWe check who runs the business.
- Established: 3+ years tradingWe look the company up on Companies House, or check a sole trader’s trading history.
- Signed agreementThey sign our lead agreement before they see any request.
- They get in touchThey must contact at least 90% of homeowners within 48 hours, or they stop getting requests.
The badges you see
If you gave us your email, we send you each matched builder’s name and badges. A badge only shows while the check behind it is in date, and we never show one we have not checked ourselves.
Every matched builder
- Insured £…with their amount of cover
- Company checkedlinked to its Companies House record, or “Sole trader checked”
- ID checkedwe know who runs the business
Some builders also have
- Insurance-backed guaranteeonly if they offer one and we have checked it
- Scheme memberfor example TrustMark or the FMB, checked on the scheme’s own register
Free quotes in 1 minute
Price up your garden office
Answer 3 quick questions. Up to 3 garden room builders who work near you will contact you to arrange a free site visit and a written quote.
Free for homeownersNo obligationUp to 3 local quotes
Where we work
Garden rooms across Herts & Bucks
Pick your town for local planning notes and builders who work near you.
Get your personal garden room brief: planning at your address, building regs, a guide price.