4.8
- 4.8Food
- 4.8Service
- 4.7Ambience
- 4.5Value
Noise • Energetic
£55.00 per person
Prepaid
1 - 4 people
£40.00 per person
Prepaid
1 - 4 people
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OpenTable reviews from verified diners
Reviews from people who have dined at Fish Union.
4.8
Noise • Energetic
South East London
Best Overall
South East London
Best Food
South East London
Best Service
South East London
Neighbourhood gem
South East London
British
Jackie
London1 review
Dined 2 days ago
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Teresa
London11 reviews
Dined 2 days ago
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Chris Gold
Kent5 reviews
Dined 3 days ago
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Keith
London22 reviews
Dined 6 days ago
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Teresa
London2 reviews
Dined 7 days ago
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Carla Gold
London24 reviews
Dined 7 days ago
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Michelle
London11 reviews
Dined on 10 October 2026
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Nicola
London3 reviews
Dined on 10 October 2026
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Sophie
London1 review
Dined on 3 October 2026
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Suzy
London3 reviews
Dined on 2 October 2026
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Fish Union feels warm and polished after a recent refurbishment, intimate lighting, a newly configured bar where you can watch the kitchen, and a welcoming, lively dining room.
Smart casual is the guide, think polished but relaxed, with many guests dressing up a little for anniversaries and special occasions.
Yes, Fish Union has outdoor seating; guests frequently mention sitting outside, enjoying the front courtyard or outdoor tables on sunny days.
The chilli salted tiger prawns are a standout, they appear on the menu and guests repeatedly praise the prawns, including the popular happy-hour prawns.
Yes, Fish Union runs a popular £1 prawn deal (early evening), a Thursday 'Mussel Madness' (£20 mussels, fries and a drink), and occasional experiences like an Oyster Masterclass.
Fish Union offers a main dining room plus a newly created bar for drinks and small plates, and outdoor seating at the front courtyard/patio for sunny lunches.
For bargains and a lively early-evening vibe, head to Fish Union before 6:00 pm to catch the £1 prawn deal; Thursday evenings are great for the restaurant’s Mussel Madness special.
Certain deals come in generous portions, guests say the prawn happy hour (they had 10 each) made for a 'huge starter', and the mussels deal is served as 500g.
Yes, Fish Union is well suited to date night, with intimate lighting and cozy seating (the bar is a popular date spot) and several guests reporting Valentine's and anniversary visits.
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