vouchernaut
Everyone who's watched enough Grand Designs has a moment where they think "we could do that". Then the episode gets to the bit where the budget's doubled and the couple are living in a caravan in January, and you remember you can't even agree on a paint colour. Grand Designs Live 2027 is where that fantasy meets people who actually sell glazing and heat pumps, and it's at ExCeL London from 30 April to 3 May.
My honest take: it's worth going if you've got one real project question and you use the day to compare how different people would solve it. If you're going to wander round collecting dream kitchens with no measurements, no budget and no decision to make, it's a much weaker day out. And possibly an expensive one. We checked the dates and details on the official site on 21 September 2026.
This is for the homeowner who loves ambitious design but needs practical help with an extension, a retrofit, a heating system, a glazing choice or that one room nobody can work out what to do with.
What we know so far
The official opening-times page has the show at ExCeL London from Friday 30 April to Monday 3 May 2027, open 10am–5pm, with last entry at 4.45pm. Tickets are due in October. Kids aged 15 and under get in free with a claimed child ticket, depending on the booking conditions at the time.
You can leave and come back the same day with a hand stamp. That's a bigger deal than it sounds: it means you can eat lunch somewhere that isn't an exhibition hall, or just go and sit outside for ten minutes when your brain's full. Double-check the policy closer to the date, though.
Should you actually go?
I'd go if at least one of these is true:
- You need to see or touch materials before you commit to them.
- You want to compare two heating, glazing or construction options.
- You've got drawings or measurements and want proper conversations with specific suppliers.
- There's a talk or expert clinic covering a question you're currently paying someone to answer.
I'd wait if the project is still a daydream. A day on the show floor is very good at making you want things before you know what you can afford. Watch some talks online, walk round a few ordinary showrooms and pin down a budget first. The show will still be there next year.
What to bring from the project
Only bring stuff you understand and are happy to share:
- a simple floor plan or the room dimensions;
- photos of the space as it is now;
- which way it faces and where the windows are, if light or heat from the sun matters;
- how far along you are with planning or building;
- a rough budget range;
- the next decision you actually need to make.
Don't hand your whole life file to every stand. A short brief is enough for an exhibitor to tell you whether their product is even relevant. The detailed drawings can come later, once you've decided they're worth a proper conversation.
Where I'd spend my time
Pick one product area and one ideas area, and stick to them. Say, heat pumps or windows in the morning, then a small-spaces or materials talk after lunch. Otherwise the whole day turns into a blur of expensive worktops that have nothing to do with your house.
The 2027 talks and exhibitor list weren't finished when we checked, so look at the current What's On schedule just before you go. And don't assume a brand will be there because it turned up in an old video or last year's exhibitor list.
This is Kunle Barker at an earlier Grand Designs Live, talking about getting to net zero. It's worth a watch to see what the expert talks are like. It doesn't tell you who's speaking in 2027, and it definitely doesn't tell you whether a particular retrofit will work on your house.
Questions that sort the good suppliers from the rest
My favourite question to ask anyone selling anything: "When is this a bad fit?" A good supplier will tell you the limits, not just the benefits. One who can't think of a single situation where their product's wrong is telling you something.
For anything involving building systems, I'd also ask:
- What survey or calculation needs to happen before you can quote?
- Which bits do you install yourselves, and which do you subcontract?
- What isn't included in the price on display?
- What warranty covers the product, and what covers the labour?
- Can I talk to a recent customer with a similar property?
- Will I need planning, building control or grid approval?
Write the answers down in the same format for everyone. Five glossy brochures aren't a comparison if each one quietly leaves out a different cost.
Should you buy anything on the day?
Samples, books, or things you can properly check over before you pay: sure. Anything that needs installing, involves finance or a big deposit, or depends on someone surveying your house first: I'd walk away and think about it.
A show offer might be perfectly genuine. The problem is the urgency, because it squeezes the time you've got to check the company, the contract, the spec and your cancellation rights. Ask for the offer in writing, with the expiry date and all the conditions. Don't assume a deadline that nobody's actually given you, and don't assume a "show price" badge means it's cheaper than you'd normally pay.
Getting to ExCeL
According to the official venue page, the 2027 show is in Hall N3 at ExCeL, Royal Victoria Dock. Check which entrance they recommend before you set off. ExCeL is enormously long, and the handiest station depends on which hall you're in.
Custom House is at the west end, on the Elizabeth line and DLR. Prince Regent is at the east end, on the DLR. Once the event page publishes exact entrance instructions, go with those.
If you want the easiest possible morning, or you're going to be lugging samples around, stay near ExCeL. If you're making a weekend of it, Canary Wharf, Stratford or central London might suit you better. Just work out the actual journey from when the show shuts, not from a map at breakfast.
The day after
Sort your photos and notes by which decision they help with. Cross off anyone who can't cover your area, your project stage or your budget. Then ask the two or three left for the same written information, so you're not comparing quotes that happen to be different because they cover different things.
If you're earlier on and want more structured technical advice, have a look at our National Homebuilding & Renovating Show guide. For interiors and smart-home ideas without a building project attached, try our Ideal Home Show plan.
Frequently asked questions
When is Grand Designs Live London 2027?
Friday 30 April to Monday 3 May 2027 at ExCeL London, 10am–5pm each day.
Can you leave and come back in?
Yes, on the same day. The official opening-times page says you'll get a hand stamp for re-entry. Worth checking again before you go.
Is it worth going before you own a home?
It's fun for materials and ideas, but you'll get a lot less out of it without a real space, a budget or a project question. For general inspiration, the Ideal Home Show or a design festival is probably a better fit.
Should I sign a renovation contract at the show?
I wouldn't sign anything major until you've checked the full spec, the company, what surveys are needed, the warranty, what's excluded and the cancellation terms, all away from the stand.
