Premium Selection: 15 Biggest private houses in the world, now on the market
Ocean Castle in Southampton, USA, $75,000,000

Investing in a sprawling estate is a real privilege for the highest-net worth individuals worldwide. In addition to their grand size, the biggest houses in the world feature unique architecture, amenities and facilities to make them stand out.

Some of the largest mansions in the world are of course stately homes and famous properties but there are also plenty of impressive private residences listed for sale. The JamesEdition range of mega-mansions includes properties with 8-17 bedrooms, plus one 46-bedroom italian caste, offering the ultimate in luxury living.

Our selection of some of the biggest houses in the world currently for sale via JamesEdition can be explored just below.

15 Largest Mansions in the World for Sale

It can be hard to truly define what is the biggest mansion in the world but finding a large estate to call home or enjoy as a second property is possible. Below are some currently available historic and modern mansion properties to consider.

1. Unica, Los Angeles, USA

Price: $78,000,000

8 beds, 21 baths

Biggest houses in the world: Unica, Los Angeles, USA

UNICA is an exceptional, one-of-a-kind private estate with resort-like facilities and Spanish-inspired architecture. Floor-to-ceiling glass pocket doors add even more airiness and space to the villa, with its sprawling open floor plan accentuating the expanse of the space. An elegant modern mansion offering unobstructed views across Bel Air.

All homes for sale in Los Angeles

2. The Azria Estate, Los Angeles, USA

Price: $75,000,000

17 beds, 25 baths

Biggest houses in the world: The Azria Estate, Los Angeles, USA

The largest design by architect Paul Williams, the Azria Estate sits on almost three private acres in Holmby Hills, Los Angeles. Combining Williams’ excellent architecture with grand Philippe Stack interiors, the estate has a modern, fresh feel with the elements of the 1930s glamour at its heart still in place.

3. Ocean Castle, Southampton, USA

Price: $75,000,000

15 beds, 12 baths

Biggest houses in the world: Ocean Castle, Southampton, USA

Ocean Castle has fairy tale vibes with the luxurious amenities and interiors you’d expect from a huge mansion. The 30 rooms of this Tudor mansion are exceptionally styled, and its oceanfront includes pristine white sands to enjoy. It includes everything you’d expect from a luxurious yet traditional oceanside property.

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4. The Cielo Estate in Beverly Hills, USA

Price: $69,995,000

9 beds, 18 baths

Biggest houses in the world: The Cielo Estate in Beverly Hills, USA

Unparalleled luxury in the world’s most desirable area, Beverly Hills. With 21,000 square feet of living space and 3.6 acres of land, the Cielo Estate is a private estate in the heart of the neighborhood. It boasts Andalusian-inspired architecture and design, and every element has been designed to perfection and grandeur.

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5. 973 Fifth Avenue in NYC, USA

Price: $80,000,000

9 beds, 13 baths

Biggest houses in the world: 973 Fifth Avenue in NYC, USA

On New York’s finest and most revered block, 5th Avenue, sits no.973, and the chance to own a piece of American history. Designed in the early 1900s, the elegant property is on the only block on the Upper East Side where no high-rise apartment blocks are allowed. The elegant property was designed by one of America’s most revered architecture firms  McKim Meade and White and many original features are still in place and cementing the property’s place as one of the most unique and sought after properties on the market.

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6. Villa Alang Alang in Cannes, France

Price: on request

9 beds, 9 baths

Biggest mansions in the world: Villa Alang Alang in Cannes, France

Nestled into the hills above Cannes, Villa Alang Alang is one of the most luxurious properties you’ll find in the South of France. It’s exquisite size, panoramic views across the seas and the city and spacious living areas ensure every desire is catered to. Every bedroom is ensuite and there are 13,000m2 of manicured gardens to enjoy.

7. La Palais Vénitien in Cannes, France

Price: $125,854,000

9 beds, 12 baths

Biggest mansions in the world: La Palais Vénitien in Cannes, France

Enjoy a magnificent panorama of Cannes and the Mediterranean Sea in opulent and incomparable surroundings. One of the most expensive homes on our list, La Palais Vénitien is inspired by the architecture of both Venice and Byzantium creating a huge and complete with a range of luxury features. There’s a private lake, tennis courts and a large outdoor pool. A little piece of Venice in the Cannes countryside.

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8. Villa in Theoule-Sur-Mer, France

Price: $40,903,000

13 beds, 13 baths

Biggest mansions in the world: Villa in Theoule-Sur-Mer, France

Exquisite 360-degree sea views of the stunning French Riviera are a top selling point of this large French villa. Spot the Alps in the background as well as direct views of the Bay of Cannes, as the large property appears to merge into the landscape of the Esterel Mountains itself. The estate is complete with six private acres, 8 large garages, and a private petrol station.

All homes for sale in Theoule-Sur-Mer

9. Costa Smeralda Villa in Sardinia, Italy

Price: on request

9 beds, 12 baths

Largest houses in the world: Costa Smeralda Villa in Sardinia, Italy

A recently built elegant villa overlooking both Pevero Bay and Cala di Volpe. Contemporary and fresh in design, this large villa offers refinement and charming Italian authenticity. High-end amenities on-site include a large pool, wine cellar and private home cinema.

All homes for sale in Porto Cervo

10. Medieval castle near Turin, Italy

Price: on request

46 beds

Largest mansions in the world: Medieval castle near Turin, Italy

This 43,056 square foot living space property is set on a ten-acre lot and stands tall over surrounding landscapes. A traditional Medieval castle, partly transformed into a hotel, this elegant property has been renovated to the highest standard. The castle incorporates many individual and unique buildings including church houses and the luxury hotel space.

All homes for sale in Piedmont

11. Lakefront estate in Laglio, Lake Como, Italy

Price: on request

7 beds, 17 baths

Biggest mansions in the world: Lakefront estate in Laglio, Lake Como, Italy

A one-of-a-kind lakefront property, this huge villa boasts 26,910 square feet of living space. The wine cellar has capacity for 2,000 bottles and there are both indoor and outdoor pools to enjoy, as well as a home cinema. The Italian countryside is secluded and ideal for a private escape.

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12.  Beachfront villa in Mijas, Spain

Price: $39,854,000

10 beds, 12 baths

Largest houses in the world: Beachfront villa in Mijas, Spain

One of the most luxurious villas n the whole Costa del Sol, Mijas House offers 180-degree ocean views and a beautiful home with 7000 square metres of beautifully landscaped gardens. This luxurious villa offers many valuable benefits from practicality due to its proximity to the motorway to Malaga and the utmost in privacy and peace at the same time.

All homes for sale in Mijas

13. Villa in the Golden Mile area, Marbella, Spain

Price: $30,367,000

12 beds, 12 baths

Biggest mansions in the world: Villa in the Golden Mile area, Marbella, Spain

With an amazing palatial feel, this elegant villa celebrates its own uniqueness. It sits at the heart of a super private yet effortlessly classy area, Rocio de Nagüeles, surrounded by other prestigious properties and luxury hotels. The huge plot houses the main property as well as an additional 4-bedroom property, perfect for guests or staff.

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14. Villa in La Zagaleta, Benhavis, Spain

Price: $30,366,000

14 beds, 21 baths

Largest mansions in the world: Villa in La Zagaleta, Benhavis, Spain

This ultra-modern mansion offers everything any high-net-worth individual could want from their home. Situated in one of the most private county club urbanizations in Europe, the property combines 14 spacious bedrooms and extensive flowing terraces throughout, including a roof solarium to enjoy unparalleled coastal and sea views.

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15. Manor house in Cascais, Portugal

Price: on request

17 beds, 15 baths

Largest mansions in the world: Manor house in Cascais, Portugal

This unique and historic property was built in 1873 and received classification as a building of public interest in 2012, Unique and classical features sit alongside the latest modern amenities to create a home that ensures every possible need is met. The property sits high above the beach, affording amazing panoramic views across the Atlantic Ocean.

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Discover more about the world’s biggest mansions

Any of the above properties could become an amazing investment and somewhere to enjoy for years to come. Many of the largest properties worldwide are not available for private purchase but can become a great inspiration for house hunters. Each property is a fantastic sight to see and epitomises the different characteristics that the largest estates can offer.

1. Villa Leopolda on the French Riviera
2. Biltimore Estate in North Carolina, USA
3. Buckingham Palace in the UK
4. Istana Nurul Iman in Brunei
5. Pensmore Chateau in Missouri, USA
6. Antilia in Mumbai, India
7. Witanhurst Manor, UK
8. Versailles Mansion in Florida, USA

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