The most expensive Avenue in the world

Princess Grace Ave.

Avenue Princesse Grace is the most expensive street in the world to buy property, where 91.740Euro($120,000)  will purchase just one square metre of prime real estate, according to a survey by Wealth Bulletin.

Prime residential property on the top 10 most expensive streets in the world saw their overall value fall by 12% in the last year, the survey found, with European streets faring better than their US and emerging markets counterparts.

That compares with price falls of between 20% to 30% in mainstream property prices in London and New York over the same period.

Avenue Princesse Grace might have been the most expensive street on the list, but prices for prime property there have fallen from a staggeringly high 145.000Euro ($190,000) per sq/m a year ago.

Via Suvretta in the Swiss ski resort of St Moritz was the only street on the list that saw prices rise for top properties in the last year. The street ranked sixth on the list, where property costs at least $45,000 per sq/m, an 18% rise on the 2008 price.

The second most expensive street was Chemin de Saint-Hospice on Cap Ferrat in the south of France, where prime property sells for $100,000 per sq/m

Ostozhenka in Moscow, at 26700Euro ($35,000) per sq/m, was the only street from an emerging market on this year's list.

The addresses that are streets ahead

• Avenue Princesse Grace, Monaco, 91.740Euro ($120,000) per sq/m

Still the most expensive street in the world, expect to pay at least 91.740.000Euro($120,000) per sq/m on the iconic Avenue Princesse Grace for a modest apartment with one of the most spectacular views in the world.

But that looks like a bargain from a year ago, when top end residential properties on the street were $190,000 per sq/m.

A 334 sq/m four-bedroom penthouse on Avenue Princesse Grace is on the market at $50m - around 113.900Euro($149,000) per sq/m - not including a 220 sq/m terrace.

Local agents reckon asking prices are being discounted by as much as 20% and the above property will probably sell for closer to $40m.

Monaco-based independent agent Pieter van Naeltwijck said transactions had fallen 25% since last year. But he said super-rich Russians were beginning to come back into the market, fuelling renewed demand.

• Chemin de Saint-Hospice, Cap Ferrat, South of France, $100,000 per sq/m

Less than 30 miles down the road from Avenue Princesse Grace, Chemin de Saint-Hospice is the second most expensive street in the world, where the top properties sell for $100,000 per sq/m

Chemin de Saint-Hospice snakes through Cap Ferrat with its 15 houses commanding beautiful Mediterranean views. Local estate agents say there is one property for sale on Chemin de Saint Hospice, but it is being sold privately and its price a closely guarded secret.

• Fifth Avenue, New York, $72,000 per sq/m

Fifth Avenue, New York City, has the most iconic status of all the streets on the list and retains third place this year. But prices on the best parts of Fifth Avenue have come off the boil in the past 12 months.

A 400 sq/m apartment with terraces overlooking Central Park on the Upper East Side of Fifth Avenue sold for $29m in June. Local estate agents say the market has been affected by the lack of supply, with residents reluctant to sell because of perceived price discounts.

• Kensington Palace Gardens, London, $65,000 per sq/m

Kensington Palace Gardens, the private road that abuts Kensington Palace and houses several embassies, including the Russian delegation, is still the fourth most expensive street in the world. Prices on KPG, as estate agents call it, have come off no more than 15% to 20%.

Two properties have been sold privately on KPG this year, according to estate agent Savills, which indicates demand is still strong for London's most exclusive address.

• Avenue Montaigne, Paris, $54,000 per sq/m

Avenue Montaigne in the 8th arrondisement - which includes the Élysée Palace, official residence of President Nicolas Sarkozy, maintains its fifth place on Wealth Bulletin's list, proving the eternal allure of Paris among the world's wealthiest.

Estate agents say there have been little changes in the prices paid for top properties on the street in the last year. The strong euro also makes the dollar prices for residential property in the city higher than they have been for some time.

Avenue Montaigne is part of the city's Golden Triangle, which includes the Avenue Champs-Elysees and Avenue Georges V.

• Via Suvretta, St Moritz, Switzerland, $45,000 per sq/m

The winding Via Suvretta in the exclusive ski resort of St Mortiz gets promoted to sixth place in this year's survey and is the only street that saw prices rise by 18%. Expect to pay at least $45,000 per sq/m for a top-end property on Via Suvretta.

Local agents reckon the rising prices are due to buoyant demand from the super wealthy looking to relocate to Switzerland, especially from countries, like the UK, where governments are increasing tax rates for the wealthy.

Residential prices in the top neighbourhoods of Geneva and Zurich are also experiencing a mini price boom. The strong Swiss franc is also inflating dollar prices for property in Switzerland.

• Via Romazzino, Porto Cervo, Sardinia,$42,000 per sq/m

Via Romazzino makes this year's list for the first time. Top prices on Italy's most expensive street, in the exclusive resort of Porto Cervo, are at least $42,000 per sq/m.

Holiday homes of many of Italy's wealthiest individuals are located on the Via Romazzino, which is also popular with Russian billionaires. Alisher Usmanov, the Russian oligarch and owner of Arsenal football club, likes the street so much that he's allegedly bought eight houses located on it, or near to it.

• Severn Road, The Peak, Hong Kong, $40,000 per sq/m

The Hong Kong residential property market is among the most volatile in the world - just how volatile was illustrated by the big falls in top-end property prices in the past year.

Number two on last year's list, with prices of $121,000 per sq/m, Severn Road has plummeted to $40,000 per sq/m.