50 Kalò di Ciro Salvo
Ciro Salvo is the third generation of his family to make pizza in Naples, and the dough he built his name on runs a long fermentation before it ever sees the oven.
Why go
The Naples original opened in 2014, the London room followed in July 2018, and the fermentation is the whole argument. A long, slow rise builds gas in a slack dough and breaks down enough protein that the cornicione puffs and blisters rather than sets hard, which is what people mean when they call this dough light. 50 Top Pizza placed the London site 4th in Europe in 2026, behind Napoli on the Road at number one, and it held the same position in 2024 and 2025 (Time Out). The room sits on Northumberland Avenue a minute off Trafalgar Square, marble and high ceilings with the wood oven in view, and it runs from noon to 11pm every day. Harden's rates the food 4 out of 5 at £58 a head, and rates the service and the room 2.
Order this / avoid
- Order: the margherita to judge the dough, then something with yellow Piennolo tomatoes and provola, which is where Salvo's sourcing shows. Fried Neapolitan starters come before the pizza in Naples and they do here too.
- Avoid: assuming the ranking guarantees the night. Time Out's Tom Howells found
the famously light crust was flat, bordering brittle; the sauce insipid
in 2022.2
What locals & experts say
- 50 Top Pizza Europa 2026 (4th): reported 3 July 2026, one of four London pizzerias on the European list.1
- Time Out (3/5, Tom Howells, October 2022):
when your USP is world-beating dough, I felt bereaved,
with the margherita calledworkaday
and a topped pizza at £16at the top end for London pizzas.
2 - Harden's (2026 survey):
top pizza
at anice price,
made withspecial long fermentation dough
; some respondents call itthe best pizza in London by a long way.
3
Good to know
- Timing: open daily, noon to 11pm. Late enough for a post-theater pizza.
- Booking: through the venue's reservation system, and useful at peak given how full the room runs.
- Price: about £58 a head per Harden's 2026; a topped pizza runs around £16.
- Dietary: the venue publishes no gluten-free, celiac or vegan statement, and third-party listings contradict each other on it. Ask the kitchen directly.
- Location: 7 Northumberland Avenue, two minutes from Charing Cross and Embankment.
Jeff's take (his words)
- Note: "A top 50 pizza place in the world." REAL. The confirmed placement is 4th in 50 Top Pizza Europa 2026.
Verdict
should-visit — The dough is worth the detour. Fourth in Europe on the 50 Top Pizza 2026 list, and third in the same family line of pizzaioli, is a real craft credential, and Harden's rates the food 4 out of 5 at £58 a head. It falls short of a trek because the London room is a tourist-corner operation with service and ambience rated 2 out of 5, and at least one serious reviewer found the crust off the Naples standard.