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Welcome to Private House III - In the world of European ultra-prime real estate, there are luxury homes, architectural homes, and then there are properties that function as private pieces of collectible architecture. Private House III belongs firmly in the latter category.
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Welcome to Private House III - In the world of European ultra-prime real estate, there are luxury homes, architectural homes, and then there are properties that function as private pieces of collectible architecture. Private House III belongs firmly in the latter category.
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Situated within the prestigious enclave of La Moraleja—often described as Spain's equivalent of Beverly Hills—this extraordinary residence is less a conventional mansion and more an architectural composition of volumes, light, privacy, and spatial drama.
Courtsey: Designed by renowned architect Federico Sotomayor of COT & Partners, the property demonstrates a sophisticated industrial-modern language rarely executed at this scale. The residence unfolds across five interlocking volumes connected by a central axis, creating a sequence of courtyards, patios, entertaining spaces, and private retreats that blur the boundaries between architecture and landscape.
At over 21,500 square feet of interior space on approximately 107,600 square feet of land, Private House III was conceived not simply as a luxury residence but as an architectural statement for a global ultra-high-net-worth owner seeking privacy, security, and individuality.
Architectural Significance
Few modern Spanish residences achieve the balance of monumentality and livability found here.
What distinguishes Private House III from many contemporary mega-mansions is that the architecture itself is the primary luxury asset.
Key architectural highlights include:
Five interconnected geometric volumes
High-tech industrial exterior aesthetic
Massive double-height interior spaces
Sequential courtyard design strategy
Strong indoor-outdoor integration
Museum-like circulation and sightlines
Architectural privacy layering
Extensive use of natural light
Security architecture integrated into design
Rather than relying on ornamentation, the home derives its prestige from proportion, spatial experience, and engineering sophistication.
This places it closer philosophically to collectible architectural residences found in Beverly Hills, Bel Air, Palm Springs, and contemporary European design capitals than to traditional luxury villas.
Interior Design Excellence
The interiors by Tomás Alía provide warmth and sophistication to an otherwise powerful architectural shell.
The result is a carefully balanced environment where:
Large-scale entertaining becomes effortless.
Gallery-quality art installations can be accommodated.
Luxury remains understated rather than ostentatious.
Natural light becomes a design feature.
Every major room enjoys visual connection to private outdoor spaces.
The home functions equally well as a family residence, ambassadorial residence, executive retreat, or collector's estate.
Security & Ownership Profile
One of the strongest attributes of Private House III is its ownership suitability.
Features include:
Gated estate environment
Comprehensive surveillance systems
Remote monitoring capability
Security shutters
Armored panic room
Multiple privacy courtyards
Controlled access points
These characteristics align closely with the requirements of:
Global business leaders
International family offices
Professional athletes
Entertainment executives
Diplomats
Ultra-high-net-worth families
Location Analysis: La Moraleja
La Moraleja remains Spain's most prestigious residential enclave and consistently ranks among the country's wealthiest districts. It is home to prominent entrepreneurs, executives, celebrities, athletes, and international families seeking privacy and proximity to Madrid.
The area has experienced significant value growth in recent years, with luxury residential pricing continuing to trend upward and Alcobendas recording some of the strongest appreciation rates in the Madrid region.
For global investors, La Moraleja offers:
International prestige
Limited supply of large estates
Strong wealth concentration
Excellent international schools
Close proximity to Madrid's financial districts
Relative value compared to London, Paris, Monaco, or Geneva
Ownership & Market Track Record
The property's ownership history is not publicly documented, which is common for ultra-prime private residences in Spain.
However, the architectural pedigree significantly enhances its desirability:
Architectural Provenance
Designed by Federico Sotomayor
Signature COT & Partners project
Professionally documented architectural work
Published internationally within architecture circles
In ultra-prime real estate, architectural provenance can contribute substantial value premiums over comparable luxury homes.
Properties with documented architectural significance often outperform conventional luxury residences because they appeal to both real estate buyers and architecture collectors.
KeyPrice Estimated Market Value (2026)
While average La Moraleja properties trade substantially lower, Private House III occupies a completely different market category.
Based on:
21,527 sq. ft. residence
107,639 sq. ft. estate grounds
Architectural significance
Security specification
Prime La Moraleja positioning
Replacement construction cost
Comparable ultra-prime transactions in the district
KeyPrice Estimated Value Range
Category
Estimate
Land Value
€5.5M – €8M
Improvements & Construction
€8M – €12M
Architectural Premium
€4M – €8M
Estimated Current Market Value
€18M – €28M Approx. (R533M)
Trophy Asset Potential
€30M+ to the right buyer
Recent record-setting sales in La Moraleja have reached approximately €25 million, demonstrating that the market is capable of supporting valuations at this level for exceptional properties.
Investment Appeal
Rating: 9.6 / 10
Strengths
✓ Architectural collectibility
✓ Trophy asset status
✓ Scarcity value
✓ Prime Madrid luxury market
✓ Exceptional privacy
✓ Large estate grounds
✓ Security infrastructure
✓ International buyer appeal
✓ Long-term wealth preservation potential
Risks
Very limited buyer pool
Longer marketing periods than conventional luxury homes
Private House III is not merely a luxury residence—it is a large-scale architectural work positioned within Spain's most prestigious residential address. Its value proposition extends beyond square footage and amenities into the realm of architectural collectibility, where design pedigree, rarity, and spatial experience become the primary drivers of long-term prestige.
For a billionaire, family office, or architecture collector seeking a residence that reflects individuality rather than conventional luxury, Private House III stands among the most compelling contemporary residential assets in Spain.
KeyPrice Ultra Elite Score: 9.7 / 10
Investment Grade: A+
Wealth Preservation Grade: A+
Architectural Significance Grade: A+
Global Trophy Asset Ranking: Exceptional European Contemporary Estate.
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Quick Summary
Property Title: KeyPrice Ultra Elite Collection™ - Private House III
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Top Property Remarks:
Excellent overall quality with luxury finishes and modern design. Unique design elements that distinguish the property from others.
Architecture5.0/5
Construction5.0/5
Development Standards5.0/5
Sustainability5.0/5
Maintenance5.0/5
Developer Rating5.0/5
Interior Design4.5/5
Rating Distribution
1★
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5★
2 KeyGraders
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Overall Strength
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Overall Strength
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Individual Gradings
5/5
4.9/5
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