Neuilly, Boulogne and West Paris property: the market picks up again in autumn 2026

Sales are returning across most of the Île-de-France region. In Neuilly-sur-Seine and Boulogne-Billancourt, the best addresses are drawing decisive buyers again, many of them keen to complete before the French presidential campaign gathers pace. Here are the key points from a survey published by Le Figaro Immobilier on 20 September 2026, read through the local lens of Paris Ouest Sotheby’s International Realty.

The key points at a glance

• Transactions are picking up in most towns around Paris, helped by lower prices.
• In Neuilly-sur-Seine, Paris Ouest Sotheby’s International Realty recorded its best August in thirty years.
• The average price in Neuilly is estimated at €10,607 per sq m (Meilleurs Agents), with 2 to 5% negotiation on quality properties.
• International buyers from the Middle East are back, with sales between €5m and €10m in the second quarter.
• In Boulogne, homes over 50 sq m in the north or the centre are the most sought after.
• Average mortgage rates reached 3.31% in August 2026, up from 3.06% a year earlier (Crédit Logement CSA).
• One to watch: the presidential election could slow sales within a few months.

Neuilly-sur-Seine: a record summer for prime addresses

The heatwave did not hold buyers back. They kept viewing and signing all summer, following an already busy second quarter.

“This is our best August in 30 years.” Frank Sylvaire, Director, Paris Ouest Sotheby’s International Realty

Prices are holding. On quality properties, negotiation stays measured, between 2 and 5%. The average price is estimated at €10,607 per sq m by Meilleurs Agents, though the figure hides real gaps: outlying areas, such as the streets around the American Hospital, trade at roughly €1,000 per sq m less.

Another strong signal is the return of international buyers from the Middle East. Several local agencies report transactions between €5m and €10m in the second quarter.

Boulogne-Billancourt: why the north and the centre lead

In Boulogne, buyers focus first on homes over 50 sq m, ideally in Boulogne Nord or the town centre. Sales in Boulogne Sud remain less frequent.

Houses are still in demand, provided they are priced correctly. Some are listed at levels the market will not follow. For a fine villa, buyers will go up to €2.5m. Rarely more.

Why buyers are acting now

Two trends are at work. Prices have fallen in almost every town in the Île-de-France region. Rates are edging up: 3.31% on average in August 2026, all loan terms combined, against 3.06% a year earlier.

Many buyers prefer to lock in financing before a sharper rise and before the presidential campaign intensifies. The window may not last: the survey reports fears of a sudden halt in sales within a few months.

Why some homes sell quickly and others do not

Location matters, but it is not everything. Agents surveyed note that sellers often underestimate the true cost of renovation work. The result is a two-speed market: premium homes sell fast at high prices, while the rest stay listed until the price is corrected. For an owner, the asking price set at launch makes the difference.

What about the rest of the Paris region?

• Levallois-Perret: an average of €7,000 to €9,500 per sq m. The €10,000 mark is now almost never crossed. Buildings from the 1990s appeal to investors.
• Saint-Germain-en-Laye: an average close to €9,200 per sq m, yet a house in the town centre near the place du Marché sold at €12,000 per sq m.
• Versailles: sales have picked up since the start of the year in the Notre-Dame and Saint-Louis districts, both popular with investors.
• Vincennes: a tight market, up 2.3% over two years, with €11,000 to €13,000 per sq m in the centre. Values halve towards Montreuil. Fontenay-sous-Bois and Nogent-sur-Marne offer alternatives.

Property valuation in Neuilly-sur-Seine: local insight you can rely on

In a market that rewards well-priced homes, the opening price often decides how long a sale takes. The teams at Paris Ouest Sotheby’s International Realty read the market street by street, from Neuilly to Boulogne Nord, backed by the international reach of the Sotheby’s International Realty network. To request a valuation of your property, call our advisers on +33 1 46 22 27 27.

FAQ: the West Paris property market in 2026

Is the Paris region property market recovering in 2026?

Yes, sales are picking up in most towns around Paris in autumn 2026. According to a Le Figaro Immobilier survey published on 20 September 2026, falling prices in almost every area have unlocked transactions. A slight rise in mortgage rates is also prompting buyers to commit. Agents remain cautious, as the presidential election could slow the market in the coming months.

Why are buyers making decisions now?

Buyers want to complete before rates rise further and before the presidential campaign intensifies. In August 2026, the average mortgage rate stood at 3.31%, compared with 3.06% a year earlier according to Crédit Logement CSA. With prices now more reasonable, this creates a favourable window that many buyers prefer to use quickly.

What is the price per square metre in Neuilly-sur-Seine in 2026?

The average price in Neuilly-sur-Seine is estimated at €10,607 per sq m by Meilleurs Agents. The figure varies widely by address: outlying areas, such as those around the American Hospital, trade at about €1,000 per sq m less. On quality properties, room for negotiation remains limited, between 2 and 5%.

Which homes sell best in Boulogne-Billancourt?

In Boulogne-Billancourt, homes over 50 sq m in the north or centre of the town are the most sought after. Sales remain less frequent in Boulogne Sud. Houses still attract strong interest, but only when priced in line with the market. For a fine villa, buyers invest up to €2.5m, rarely more.

Are international buyers returning to West Paris?

Yes, international buyers are returning to Neuilly-sur-Seine, particularly from the Middle East. Local agencies completed several transactions between €5m and €10m in the second quarter of 2026. These buyers look for quality properties on established addresses, a segment where prices are holding firm.

How do I value my property in Neuilly or Boulogne?

A reliable valuation starts with the precise location, then weighs the floor, the view, the condition of the property, the real cost of any works and any outdoor space. In 2026, well-priced homes sell quickly while others wait for a price cut. Paris Ouest Sotheby’s International Realty offers valuations led by advisers who specialise in each district.