Even the most successful operators tend to refresh their business every now and then. From superficial renovations to completely new concepts, it’s a rare restaurateur who doesn’t feel the need to change things up.

That’s what makes the venues on this list so impressive. Many have sailed past their 50th anniversary on the same foundations they started with. Some have never changed what they do.

As a group, they’ve weathered recessions, gentrification, rising rents and fluctuating tastes. We think that’s worth celebrating.

Buon Ricordo

This classic Italian restaurant has been kicking since 1987 and shows no signs of slowing down.

108 Boundary Street, Paddington
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Beppi's

Sydney's longest-standing Italian restaurant, running since 1956.

21 Yurong Street (Corner Stanley Street) , East Sydney
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Tetsuya’s

One of the city's first fine dining benchmarks, opened 1989.

529 Kent Street, Sydney
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Bills Darlinghurst

Where it all began for Bill Granger in 1993.

433 Liverpool Street, Darlinghurst
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Machiavelli

A business lunch favourite since 1988.

123 Clarence Street, Sydney
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Gloria’s Portuguese Restaurant

Where Sydney fell in love with Portuguese cuisine in 1988.

82 Audley Street 2049, Petersham
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Jonah's

This elegant hotel and fine diner started life as a coach house, in 1929.

69 Bynya Road, Whale Beach
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Lucio’s

A classic Ligurian-style cucina that's been kicking since 1981.

47 Windsor Street, Paddington
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Icebergs Dining Room and Bar

On Bondi Beach's cliffside, this upscale Mediterranean restaurant flaunts its fabulous food and view.

Restaurant 1 Notts Ave, Bondi
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Billy Kwong

It's "only" been around since 2000 and has moved once since, but this one is well and truly in the hearts of Sydneysiders.

Shop 1 28 Macleay Street, Potts Point
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Golden Century

Fresh seafood since 1989.

393-399 Sussex Street, Sydney
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Billu’s

North Indian classics and Punjabi specialities from a Harris Park institution.

62 Wigram, Harris Park
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Bill & Toni’s

This remnant of Sydney's original Little Italy opened in 1965.

74 Stanley Street, Darlinghurst

Stuyvesant's House

A 50-year-old German restaurant with a 4000-bottle cellar and a killer pork knuckle.

45 Alexander Street, Crows Nest

Spice I Am

Thai restaurant loaded with energy and spice.

90 Wentworth Ave, Surry Hills

10 William St

Find classic Italian swagger at Sydney's most-experimental wine bar.

10 William Street, Paddington

Sean's Panaroma

Rickety-chic at this memorable beachside restaurant.

270 Campbell Parade, Bondi

Ayam Goreng 99

Sticky, tender Indonesian grilled chicken and Jakarta street food.

464 Anzac Parade, Kingsford

Chat Thai

A Thaitown favourite, with rockin' grilled chicken.

20 Campbell Street, Haymarket