London spa hotels with a pool, compared
London's spa hotels with a pool split into two kinds: spas where you can swim real lengths, and spas where the pool is for soaking. For lengths, Bvlgari in Knightsbridge has a 25 m pool and Hotel Café Royal's Akasha spa an 18 m lap pool under Regent Street; Pan Pacific London, by Liverpool Street, has an 18 m infinity pool kept at 30 °C. For a slower spa day, The Lanesborough, Claridge's and The Connaught's Aman Spa build their pools for immersion. The Haymarket Hotel, One Aldwych and Raffles at The OWO complete the list with 18 to 20 m pools in their spas. The eleven hotels here average 9.46 out of 10 across 7,317 guest reviews, and most sit in Mayfair, St James's and Knightsbridge.
The spa hotels on this page follow London's grand-hotel map: Mayfair for Claridge's and The Connaught, Knightsbridge and Hyde Park Corner for Bvlgari and The Lanesborough, the Strand for The Savoy and One Aldwych, St James's and Whitehall for the Haymarket and Raffles. Pan Pacific is the outlier, in a tower by Liverpool Street, and the Milestone faces Kensington Gardens. Choosing a spa here usually means choosing a district too.
Where to stay
Choosing the spa before the hotel
A London hotel pool is almost always part of a spa: there is no climate for outdoor swimming, so pools are built underground or under glass, next to saunas, steam rooms and treatment rooms. That makes the spa the real product. The useful comparison is length and depth, water temperature, whether spa access comes with the room, and whether non-guests can get in on a spa day.
Want to swim, not just float? Bvlgari's 25 m pool, with a hydro tub and steam room beside it, is the longest on this page. Hotel Café Royal's Akasha spa has an 18 m lap pool under Regent Street that guides describe as still and quiet, plus a hammam. The Savoy's pool is shorter but has a jet stream for resistance swimming. The Milestone in Kensington has a resistance pool too: a basin for swimming against a current, not for laps. For a training session, I would choose Bvlgari or Café Royal.
Is spa access included? At Pan Pacific London, access to SENSORY, the wellness floor with its infinity pool, gym and saunas, is complimentary for guests. The water is held at 30 °C, warm enough for children, who have set windows: weekdays 9 to 11 am and 3 to 5 pm, weekends 7 to 9 am and 4 to 6 pm. The Savoy's pool, on the third floor under a glass roof, is open to residents, non-residents and members, from 7 am to 9 pm on weekdays, so expect company at busy hours.
Prefer a soak to a swim? The Connaught's Aman Spa pool is 60 square metres and 1.2 metres deep, according to the hotel: a pool for floating, not for turns. The Lanesborough's Club & Spa centres on a hydrotherapy pool with a separate vitality pool, built for recovery. Claridge's opened its first spa below ground, with the pool at its centre under limestone columns and a vaulted ceiling, and cabanas set back for privacy. These three suit a Mayfair or Hyde Park Corner stay where the spa is the evening plan.
Booking only a spa day? Hotel Café Royal's Akasha welcomes day visitors who book a treatment or a day-spa package, and The Savoy admits non-residents to its pool. Bvlgari has also let visitors use its facilities with a treatment. The Haymarket Hotel opens its 18 m pool to non-guests through its Swim & Dine package, in 45-minute slots. If you are staying near Liverpool Street or Shoreditch instead, Pan Pacific is the only hotel on this page in the City, and its pool is reserved for guests, which keeps it calmer than the West End spas.
A traveler's takeFor swimming, I would book Bvlgari for its 25 m pool, or Hotel Café Royal if I wanted Regent Street on the doorstep and an 18 m lap pool below it. For a family with young children, Pan Pacific's 30 °C water and free spa access make the most sense, as long as the swims fit its children's windows. For a couple whose evening is the spa, I would pick The Connaught or Claridge's and accept that their pools are for floating. I would not book the Milestone expecting lengths: its pool is a resistance basin.
Spa / thermal poolThe Connaught, Maybourne
Holistic spa pool behind three Michelin stars in Mayfair
Why guests love itWe booked The Connaught for our anniversary and the spa pool ended up the quiet counterpart to what was otherwise a food-focused trip. Dinner at Hélène Darroze lived up to the three stars, and having a butler arrange the spa slot around our reservation meant we never had to think about timing. Connaught Bar afterwards was worth the short wait for a table. The whole stay felt considered rather than scripted, and Mayfair's quieter streets outside matched the mood inside.
Spa / thermal poolHaymarket Hotel, Firmdale Hotels
Pool next door to the Theatre Royal
Why guests love itWe booked the Haymarket Hotel around theatre tickets and the pool turned out to be the way to fill the hours before curtain. A swim, then afternoon tea before 16:30, then a short walk to the Theatre Royal next door, the evening fit together without much planning. St James's Park the next morning was an easy five minutes away, and Buckingham Palace only a little further. The Bluetooth Bose unit in the room was a small touch we did not expect but used every evening after the show.
Spa / thermal poolThe Lanesborough, Oetker Hotels
Spa pool overlooking Hyde Park with a personal butler
Why guests love itWe stayed at The Lanesborough for a long weekend and the butler service made the trip feel unhurried in a way few hotels manage. The Club & Spa pool was quiet every time we used it, and the Hyde Park view from our room made mornings easy to enjoy without leaving the building. Cocktails at the Library Bar one evening turned into a longer conversation about the whisky list than planned. It suited a slower, formal kind of stay, and we left feeling like we had actually rested.
Spa / thermal poolPan Pacific London
Indoor infinity pool near Liverpool Street Station
Why guests love itWe based a City trip at Pan Pacific London and the SENSORY floor became the daily reset after long days out. The infinity pool with the floor-to-ceiling windows still catching daylight in the early evening was a highlight, better than the basement spas we had used at other London hotels. Shoreditch was close enough for dinner most nights, and the Tower of London an easy walk the next morning. Complimentary access to the wellness floor meant we never weighed up whether a spa session was worth the cost.
Spa / thermal poolOne Aldwych
Indoor pool and wellness centre nine minutes from Trafalgar Square
Why guests love itWe chose One Aldwych mainly for the location and the pool turned out to be a genuine bonus rather than an afterthought. The wellness centre stayed quiet most mornings, and the walk to Trafalgar Square afterwards took less time than getting ready did. The family restaurant handled two different dietary requirements without any fuss. St Paul's Cathedral was an easy Tube ride for the afternoon, and we were back at the pool before dinner most evenings.
Spa / thermal poolRaffles London at The OWO
Indoor pool 300 metres from Trafalgar Square
Why guests love itWe stayed at Raffles at The OWO mainly out of curiosity about the building, and the pool ended up a genuine reason to stay in most evenings. Three hundred metres to Trafalgar Square meant we could fit in a swim after a full day of walking without losing much time. Breakfast with champagne and pastries became the highlight of each morning, more than expected from a hotel breakfast. The National Gallery was close enough for a quick visit, and Big Ben an easy walk on our last afternoon.
Spa / thermal poolMilestone Hotel Kensington
Resistance pool overlooking Kensington Palace Gardens
Why guests love itWe picked Milestone Hotel Kensington for something quieter than the bigger Knightsbridge names, and the resistance pool suited that mood. It is not a large pool, but the view toward Kensington Palace Gardens from the spa area made up for the size. Our room came with fresh flowers and a genuinely different feel from typical hotel decor, all antiques and fine fabrics rather than anything mass-produced. Dinner at Cheneston's Restaurant let us swap out two dishes without fuss, and Hyde Park was an easy walk the next morning.
Spa / thermal poolThe Savoy
Spa pool on the Thames, five minutes from Covent Garden
Why guests love itWe chose The Savoy for the history as much as the pool, and the spa turned out to be a genuinely calm space inside a hotel that otherwise buzzes with guests all day. Our room looked out toward the river, which made the Edwardian styling feel earned rather than decorative. Covent Garden was an easy five-minute walk each evening, close enough that we never considered a taxi. The Gallery became our default spot for a drink before dinner, and the whole stay felt like a piece of London history.
Spa / thermal poolBvlgari Hotel London
A 25-metre pool and jacuzzi minutes from Harrods
Why guests love itWe came for the pool length and it delivered, 25 metres is genuinely rare among London hotels and it made mornings feel like part of the holiday rather than an errand. The jacuzzi next door handled the recovery, and Harrods being five minutes away meant the afternoons filled themselves without much planning. The Three Keys polish shows everywhere, down to the private cinema we used on our last night instead of going out again.
Spa / thermal poolClaridge's, Maybourne
Sixth-floor spa pool inside a Mayfair icon
Why guests love itWe booked Claridge's for an anniversary and the sixth-floor spa turned into the quiet centre of the stay. The pool itself is modest in size but the juice bar and glass-columned gym next to it made the floor feel considered rather than functional. Afternoon tea in the grand foyer the day we arrived set the tone, and walking to Bond Street afterwards took barely three minutes. The courtyard view from our room was calmer than expected for a hotel this central.
Spa / thermal poolHotel Cafe Royal
A real lap pool inside a Regent Street spa built for lengths
Why guests love itThe Akasha spa sold us on this stay before the rooms did. Lengths in the lap pool most mornings, then the jacuzzi and Hammam once the legs gave out, all before the shops on Bond Street had properly opened. Regent Street stays busy outside, lively for some and loud for others, but the spa itself stayed quiet even mid-morning. Dinner at the two Michelin star room capped the stay properly.
Local tips
- 1At Pan Pacific London, children swim on weekdays from 9 to 11 am and 3 to 5 pm and at weekends from 7 to 9 am and 4 to 6 pm.
- 2The Savoy's glass-roofed pool is shared with non-residents and members; on weekdays it opens at 7 am, the quietest time for a swim.
- 3For real lengths in a spa, Bvlgari's 25 m pool and Akasha's 18 m lap pool at Hotel Café Royal are the ones built for swimming.
- 4The Connaught's pool is 1.2 m deep across 60 square metres, so plan on stretching and floating there rather than a swim set.
- 5Akasha at Hotel Café Royal accepts day visitors with a treatment or day-spa package, the simplest way to use a West End spa pool without a room.
- 6At The Savoy and the Milestone, the pools have a current to swim against, which turns a short basin into a workout if you swim in place.
- 7Searching for a plunge pool in Shoreditch? None of these spas is there; the nearest on this page is Pan Pacific, a short walk from Liverpool Street station.