Anyone who has wandered through King’s Cross station in London knows the area has changed. Among the shiny new developments sits a steakhouse that has quietly become a local favourite – and a celebrity magnet.
Steak price: £14.00 ·
Nearest station: King’s Cross ·
Walk-ins accepted: Yes ·
Complimentary dessert: Ice cream ·
Number of UK cities with Flat Iron: 6
Quick snapshot
- Flat Iron Kings Cross is located at 47-51 Caledonian Road, London N1 9BU (Flat Iron Steak (official site))
- Open daily, hours vary by day (Flat Iron Steak (official site))
- Signature Flat Iron steak is £14.00 on the main menu (Flat Iron Steak (menu))
- Walk-ins are welcome (Flat Iron Steak (official site))
- Exact wait times for walk-ins are not published
- Celebrity visits (Kim Kardashian, Kate Middleton, David Beckham) lack verified sources
- Some menu items may vary across locations
- No major menu or policy changes announced for 2025
- King’s Cross branch has been open since at least 2018
- Flat Iron continues to expand across UK cities (now 6 locations)
- Demand for affordable steak in London shows no sign of slowing
Six key details, one pattern: Flat Iron keeps things simple – good steak, fair prices, and minimal fuss.
| Detail | Value |
|---|---|
| Restaurant Name | Flat Iron Kings Cross |
| Address | Near King’s Cross station, London (exact address on official site) |
| Steak Price (signature) | £14.00 |
| Opening Hours | 12:00 – 22:00 daily (variations per day) |
| Phone | Available on official website |
| Website | flatironsteak.co.uk |
Is there a flat iron in Kings Cross?
Flat Iron Kings Cross is a real, walkable steakhouse two minutes from the station – not a rumour or pop-up.
Where is Flat Iron Kings Cross located?
- The official address is 47-51 Caledonian Road, London N1 9BU (Flat Iron Steak (official site)).
- Tripadvisor lists the same address and confirms it as a steakhouse and British restaurant (Tripadvisor (user reviews platform)).
How to get to Flat Iron Kings Cross from the station?
- It’s a 2-minute walk from King’s Cross station – exit onto Caledonian Road and head north.
- The restaurant is clearly visible from the main road. For those planning a wider trip, check out our guide to the Best City Breaks Europe.
The implication: location is a key selling point – you can spot it on your way out of the station, no detour needed.
Do you have to book at flat iron?
How to make a reservation at Flat Iron Kings Cross?
- Reservations can be made through the official website (Flat Iron Steak (official site)) or by phone (number available on site).
- No deposit is required for standard bookings.
Is booking recommended for weekends?
- The restaurant accepts walk-ins, but waits are longer on Friday and Saturday evenings (open until 23:00 on those days).
- Weekend bookings are advisable, especially after 19:00.
Booking feels optional until you’re waiting 45 minutes on a Friday night – then it feels essential. Plan ahead for peak times.
What this means: Flat Iron gives you flexibility, but the smart move for weekends is to reserve a table online.
Can you do walk-in flat iron?
What is the wait time for walk-ins?
- Walk-ins are explicitly accepted (Flat Iron Steak (official site)).
- Official wait times are not published; anecdotal reports from Tripadvisor suggest waits between 10 and 40 minutes for a table for two on weekday evenings (Tripadvisor (user reviews platform)).
Are there any times when walk-ins are not accepted?
- No official policy restricts walk-ins at any time of day.
- During very busy periods (e.g., Christmas) management may encourage booking, but walk-ins are never refused entirely.
The trade-off: walk-ins are a genuine option, but your time is the currency. A 10-minute gap is fine; a 40-minute one tests patience.
What is the dress code at Flat Iron Kings Cross?
Is Flat Iron Kings Cross casual?
- Yes – casual attire is perfectly acceptable. The restaurant describes itself as relaxed and informal.
- No strict dress code is published on the official site or Tripadvisor.
What should I wear to Flat Iron?
- Smart casual is the unspoken norm – jeans and a clean shirt work well.
- Trainers, t-shirts, and casual jackets are common among diners.
If you’re coming straight from a day of sightseeing or from the station, you won’t feel out of place – no jacket required.
The pattern: Flat Iron intentionally keeps the formality low to match its high-volume, affordable steak model.
What is on the menu at Flat Iron Kings Cross?
What is the signature dish?
- The Flat Iron steak is the hero – £14.00 on the main menu, 787 kcal, served with a choice of sides (Flat Iron Steak (menu)).
- Also available: 35 Day Aged Ribeye at £20.00 and Wagyu Steak of the Day at £24.00 (Flat Iron Steak (menu)).
Are there vegetarian options?
- Yes – the Roast Aubergine is served as a main (£9.00) or a side (£5.00) (Flat Iron Steak (menu)).
- Truffled Macaroni Cheese (£5.50) is popular among non-meat eaters.
What sides are available?
- Homemade Beef Dripping Chips (£4.50), Crispy Bone Marrow Garlic Mash (£5.00), Creamed Spinach (£4.50), Green Salad (£3.50) (Flat Iron Steak (menu)).
- Every meal ends with complimentary ice cream – a tradition at all Flat Iron locations.
Bottom line: The Flat Iron steak is what it actually is – a good-quality, reasonably priced cut. Steak lovers at £14 will be delighted. Vegetarians have a solid aubergine main and should book anyway because the sides are worth the trip.
What this means: the menu is lean but thoughtful – no fluff, just steak, a few sides, and that free ice cream that keeps people coming back.
Upsides
- Affordable steak – best value in central London
- Walk-ins accepted – no need to plan weeks ahead
- Complimentary ice cream after every meal
- Prime location near King’s Cross station
Downsides
- Queue times can be unpredictable during peak hours
- Limited vegetarian main options (only one dedicated dish)
- No confirmed celebrity sightings – don’t go expecting a Kardashian
What we know and what’s still unclear
Confirmed facts
- Flat Iron Kings Cross exists and is open at 47-51 Caledonian Road (Flat Iron Steak (official site))
- Steak price is £14.00 (main menu) (Flat Iron Steak (menu))
- Walk-ins are accepted (Flat Iron Steak (official site))
- Open daily with hours varying by day (Flat Iron Steak (official site))
What’s unclear
- Celebrity visits – reportedly Kim Kardashian, Kate Middleton, and David Beckham have eaten here, but no official confirmation has been found
- Exact walk-in wait times – not officially published
- Some menu variations across different Flat Iron locations
“Great steak for everyone.”
— Flat Iron official site and Instagram bio (Flat Iron Steak (homepage))
“Flat Iron Kings Cross is a hit among many travellers for its quality steaks and sides offered at reasonable prices.”
— Tripadvisor reviewer (Tripadvisor (user reviews platform))
Flat Iron Kings Cross proves that affordable steak can coexist with prime London real estate – and that walk-ins still work in an industry obsessed with reservations. For the casual diner arriving at King’s Cross with a hunger for something better than a sandwich, the choice is clear: head to Caledonian Road and queue with confidence, or book ahead if you value your time. If you’re visiting London in 2025, consider planning around the Cartier V&A Exhibition 2025 for a complete day out.
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Frequently asked questions
Where did Kim Kardashian eat in London?
Kim Kardashian reportedly dined at Flat Iron in London during her 2019 visit, though the exact branch is unconfirmed. No official source has verified the claim.
What is Kate Middleton’s favourite restaurant in London?
The Duchess of Cambridge has been linked to Flat Iron by tabloid reports, but there is no confirmed evidence that she regularly dines there.
What is the hardest restaurant to get into in London?
Flat Iron Kings Cross is not among the hardest – it intentionally keeps doors open for walk-ins. Harder bookings include Core by Clare Smyth or Sketch.
What is the phone number for Flat Iron Kings Cross?
The number is listed on the official website under the King’s Cross location page (Flat Iron Steak (official site)).
Is Flat Iron Kings Cross good for groups?
Yes – the restaurant can accommodate groups, but booking is strongly recommended for parties of 6 or more.
Does Flat Iron Kings Cross serve lunch?
Yes – lunch service starts at 12:00 daily (Flat Iron Steak (official site)).
What is the best time to visit to avoid queues?
Early lunch (12:00-13:00) or late dinner (after 21:00) on weekdays sees the shortest wait times.
David Sinclair is Culture & Features Editor at PublicReport, covering arts, media, books, film, music and British cultural life.