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CHEMISTRY: THE MIXER PARTY FOR SINGLE OVER 40s 

If you’re tired of endless swiping, awkward apps, and events that don’t deliver, Chemistry is for you.

Held at some of London’s finest venues, Chemistry is a vibrant, welcoming singles party created exclusively for people who are serious about meeting someone special – without the pressure.

✨ What to Expect

Up to 100 like-minded singles, carefully balanced by gender
🍸 Stylish Central London venues – perfect for relaxed conversation
🎤 Engaging ice-breaker games hosted by our expert tea
🧠 Smart matching after the event – only mutual likes lead to contact

No awkward intros. No speed dating. Just good conversation, a great atmosphere, and the chance to meet someone who gets you.

❤️ Why It Works

Chemistry is designed for singles in their 40s and 50s who know what they want – and who don’t want to waste time. We take care of the setting and introductions so you can focus on enjoying the evening and making real connections.

Our guests tell us they feel more relaxed, more open, and more themselves – which makes all the difference.

“A brilliant evening – classy venue, fun format, and I actually met someone I clicked with. Highly recommended!” – Sarah, 47

🎟️ Ready to Find Chemistry?

Tickets are limited and our events sell out fast. Book now to secure your place at the next Chemistry party. 👇

Last few places!
Today
Sat 21 FEB

Chemistry - Over 40s Singles Party

Sat 21 Feb 2026

The Happenstance (Lounge Bar), London, St Pauls

Chemistry - a unique over 40s singles party for those that are serious about dating.

Tickets

£30

Age guide

40-55

Male left

2

Female left

2

Find out more
Book now!
Sat 7 MAR

MARCH MIXER - LOCK & KEY PARTY - PLUS PRE-PARTY SPEED DATING

Sat 7 Mar 2026

The Happenstance, London, St Pauls

Lock & Key party PLUS pre-party speed dating. Book now!

Tickets

£36

£26

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Sat 7 MAR

MARCH MIXER - LOCK & KEY PARTY

Sat 7 Mar 2026

The Happenstance, London, St Pauls

Join us for the March Mixer Lock & Key Party. The biggest singles party in London. 200 people exp...

Tickets

£30

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Sat 21 MAR

Chemistry - Over 40s Singles Party

Sat 21 Mar 2026

The Happenstance (Lounge Bar), London, St Pauls

Chemistry - a unique over 40s singles party for those that are serious about dating.

Tickets

£30

Age guide

40-55

Male left

10+

Female left

10+

Find out more
Book now!
Fri 27 MAR

Spring Lock & Key Party - Cambridge

Fri 27 Mar 2026

The Cambridge Tap, Cambridgeshire

Join us at our Spring Singles Lock & Key Party. The best way to meet other singles in Cambridge.

Tickets

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Sat 11 APR

THE SPRING FLING - LOCK & KEY PARTY - PLUS PRE-PARTY SPEED DATING

Sat 11 Apr 2026

The Refinery, London, Central

Lock & Key party PLUS pre-party speed dating. Over 200 people are expected once again. Book now!

Tickets

£30

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Sat 11 APR

THE SPRING FLING - LOCK & KEY PARTY

Sat 11 Apr 2026

The Refinery, London, Central

Join us for our Spring Fling Lock & Key Party - Over 250 people expected!

Tickets

£25

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Thu 16 APR

Spring Singles Party - Bristol

Thu 16 Apr 2026

The Cocktail Club, Bristol

Join us for a special Spring evening of offline dating and meet people living in and around Bristol.

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 17 APR

Spring Singles Party - Bournemouth

Fri 17 Apr 2026

1812, Bournemouth, Dorset

Welcome to the Bournemouth Spring Lock & Key Party! Meet, mingle and party with the perfect icebr...

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 17 APR

Spring Singles Lock & Key Party - York

Fri 17 Apr 2026

Manahatta, York

Don't miss our Lock & Key Singles Party Launch! Up to 100 people expected!...Book now!

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 17 APR

Spring Lock & Key Party Cardiff

Fri 17 Apr 2026

Peppermint Bar, Cardiff, Wales

Don't miss the best singles party in town! Up to 80 people expected!

Tickets

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Thu 23 APR

Spring Singles Party - Southampton

Thu 23 Apr 2026

Revolution, Southampton, Hampshire

Welcome to the Southampton Spring Lock & Key Party! Meet, mingle and party with the perfect icebr...

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 24 APR

Spring Singles Party - Edinburgh

Fri 24 Apr 2026

MANAHATTA EDINBURGH, Edinburgh, Scotland

Join us this Spring for our Singles Party in Edinburgh. Up to 80 people expected.

Tickets

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 24 APR

Spring Singles Lock & Key Party - Sheffield

Fri 24 Apr 2026

Manahatta, Sheffield

Don't miss our Lock & Key Singles Party Launch! Up to 80 people expected. Book now!

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Sat 25 APR

Chemistry - Over 40s Singles Party

Sat 25 Apr 2026

The Happenstance (Lounge Bar), London, St Pauls

Chemistry - a unique over 40s singles party for those that are serious about dating.

Tickets

£30

Age guide

40-55

Male left

10+

Female left

10+

Find out more
Book now!
Fri 8 MAY

Spring Lock & Key Party - Cambridge

Fri 8 May 2026

The Cambridge Tap, Cambridgeshire

Join us at our Spring Singles Lock & Key Party. The best way to meet other singles in Cambridge.

Tickets

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 8 MAY

Spring Lock & Key Singles Party - Birmingham

Fri 8 May 2026

BOX, Brindley Place, Birmingham

Love is in the air! Up to 80 guests expected at our Singles Party! Don't miss out, book now!

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 15 MAY

Spring Lock & Key Party - Manchester

Fri 15 May 2026

Manahatta, Manchester, Deansgate

The famous lock and key party returns to Manchester! Book now and meet other singles in the city!

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 15 MAY

Spring Singles Party - Glasgow

Fri 15 May 2026

Arta, Glasgow, Merchant City

Join us for our Spring Singles Party in Glasgow. Up to 80 people expected.

Tickets

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
Book now!
Fri 22 MAY

Spring Singles Lock & Key Party - Leeds

Fri 22 May 2026

Dirty Martini, Leeds

Join us at our Leeds Singles Lock & Key Party. The ultimate way to meet singles this Spring.

Tickets

£25

£20

Age guide

30-45

Male left

10+

Female left

10+

Find out more
ORIGINAL DATING IN THE PRESS
Trustpilot

HOW IT WORKS

The beauty of Speed Dating London lies in its no-nonsense approach. You take an equal number of single girls and guys, put them in a room and give them a few minutes to chat with every other member of the opposite sex.

When you get there

Original speed dating events in London normally begin at 7.30pm. You will need to register with our hosts and to begin with they will issue you with a score sheet. This will help you to keep track of the singles that you would like to meet again and perhaps go on a date with. After a short period of mingling, your host for the evening who will run through detailed instructions and give you your starting position if you are a guy or table for the event if you are a girl.

Meet & Mingle

A London speed dating event is split into two halves, each lasting around an hour, there will be an interval at half time of about 15 minutes for speed dating London. You will have between 4 and 5 minutes with each person, after which you need to tick a box on your score sheet - "yes, I would like to meet this person again" or "no. Thanks but no thanks". Or "friend" if you'd like to get to know them platonically. Make sure that you do this after each date to keep track. Afterwards there is an opportunity for everyone to meet and mingle informally - this is often where the real action begins, so make sure you don't disappear too quickly!

Complete your score sheet

After the event you simply tick who you liked on the Original Dating website and the site works about your matches automatically. If the dates you have ticked as a "yes" have reciprocated you have a match. You will be able to view the first names and message them via our site online without revealing your email address until you are ready to. You'll be having proper first dates in no time.