Your Neighbourhood Sauna & Plunge
South London's sauna and cold plunge.
Drop in for mixed-gender, women-only, quiet, parent &baby sessions, or guided sauna.
Heat up. Cool down. Repeat.
Heat up. Cool down. Repeat.
What’s Inside?
We combine a spacious high-heat Finnish-sauna with three outdoor cold plunges, and a lounge area to relax before or after your sessions. We’ve kept things simple and considered with hot showers, toiletries, hairdryers, lockers, water stations, tea, sauna hats and everything you need. Towel hire is also available - so you can arrive with just yourself (and your swimsuit) and settle straight in.
Hot Finnish-style sauna
A 13 person sauna which we maintain 90-95C, designed for deep, consistent heat.
Perfect to sweat, breathe and really stretch out.
Icy Cold Plunges
Three outdoor ice baths set at 5 and 10C - cold, quick, and very alive.
Step in, breathe through, and step out feeling sharper, calmer, and reset.
Indoor Lounge
Plenty of space to relax in our lounge with the worlds comfiest armchairs (according to our customers!)
Have a cup of tea, read a book or chat with friends pre or post-sauna.
PROCESS
How It Works
Arrive
Check in, grab a towel, and leave the city noise
behind.
15 minutes in our 90°C Finnish sauna to sweat,
breathe, and deepen your pulse.
Heat
A 1-minute plunge into our 5°C or 10°C ice baths
for a total nervous system reset.
Cool
Rehydrate and relax in our lounge. Feel the post- plunge glow. Repeat as needed.
Rest
Weekly Sessions
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Communal Sauna
Our communal sessions are relaxed and social. You’ll share the space with others, but there’s no pressure to talk - some guests come for quiet time, others for conversation.
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Quiet Sauna
A calm, grounding session created for those who prefer silence. The sauna becomes a space for meditation, stillness and deep rest. A gentle reset for the mind.
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Womens Sauna
Designed for those who feel more at ease in a single-gender environment. These sessions offer the same gentle, restorative sauna experience as our communal times.
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Guided Sauna
A small group, longer (90min) facilitated session incorporating breathwork, traditional techniques and aromatics inspired by European sauna culture. These sessions are slower, more immersive and designed to deepen the experience.
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Parent & Baby Sauna
A small group session designed for parents with pre-crawl babies. Enjoy soothing heat, calm surroundings, and space to breathe and connect with other parents, with your little one right beside you.
About Urban Heat
Sauna Cold Plunge Community
After 15 years in corporate London, I wanted somewhere local to decompress that didn't cost a fortune or feel intimidating. It didn't exist, so I built it.
My own relationship with sauna started during recovery from surgery, and stayed because nothing else cut through the stress of city life quite like it. That's what Urban Heat is built around: an hour where the city stays outside.
We've designed the space to feel like a living room, not a spa. You can come alone (most people do), and leave having had a real conversation with a stranger. That's the thing about sitting in a hot room together. It has a way of making people human again.
Female-founded, community-run, built for South London. Come and find us under the arches.
Aarthi x
Frequently Asked Questions
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When you click ‘Book now’ you’ll be taken to our timetable on Momence which is our booking platform. You can log into an existing Momence account, or create a new account with them. You’ll use this account to manage your bookings with us.
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Most are 60 minutes, giving you plenty of time for multiple rounds of sauna, ice baths, and rest. Guided sauna is 90 mins, where you’ll be led by a sauna-master between cycles of heat, cold and rest.
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For communal sauna sessions, you can cancel or reschedule up to 12 hours before your session for a full credit back to your Momence account (Momence is our booking platform and how you book sessions with us) For private bookings, we operate a 72 hour cancellation policy.
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Most sessions are mixed gender unless stated otherwise. We also run gender-specific sessions twice a month for those who might be more comfortable in a same-gender space.
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Yes - but be mindful of how much water you pour over. Little and often is best - too much water can cool the heater significantly, or break it. Our Harvia Virta Pro heater is powerful, and the host will manage the steam (“löyly”) to keep it safe and enjoyable for everyone.
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Sadly not. We operate an 18+ policy here.
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Every session includes full access to our sauna, ice baths, outdoor showers, lounge, and relaxation areas. You’ll also get a quick orientation on how to sauna safely if its your first time.
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Swimwear, two towels (one to sit on in the sauna, one to dry off), indoor non slip shoes, a water bottle and a standard size padlock if you want to secure your belongings. We provide drinking water, herbal tea, sauna hats and toiletries for post-session showers.
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- Sit on your towel at all times.
- Keep voices low inside the sauna.
- No shaving, exfoliating, or personal grooming in the showers
- Be mindful of scent - please don’t bring any oils or strong perfumes.
- Mobile phones are not allowed inside the sauna or ice bath areas.
- Smoking or vaping is not permitted anywhere, except for outside the building.
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Yes we have three showers (hot + cold) and toiletries like body wash, shampoo + conditioner
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Yes you can rent towels from us. We charge a fee per towel.
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We sell a range of speciality teas as well as non-alcoholic drinks. We also stock small snacks like protein balls.
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Take a Look Inside Urban Heat
Discover a space designed to help you recharge, recover, and reconnect. Through the powerful combination of sauna, cold plunge, and community, we offer an experience that supports both physical recovery and mental wellbeing, without the expensive price tag.
Whether you're seeking relaxation, resilience, or a new wellness routine, we're here to help you feel your best.