Fractional Ownership
A smarter way to own
Buy only the share you need — with genuine deeded ownership, shared costs, and full resale rights.
Not a timeshare. Not a club. Real property ownership, made accessible.

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1/8 SHARE PRICE
Located in the heart of Madrid’s prestigious Salamanca district, Ático Hermosilla is a striking blend of heritage charm and contemporary elegance—offered through fractional ownership. Set on the top floor of a restored classic building on Calle Hermosilla, this 175 m² penthouse has been completely reimagined by renowned architect Mónica Diago to deliver a highly refined and luminous city retreat.
This spacious 3-bedroom, 3-bathroom home features a 16 m² private terrace, ideal for morning coffee or evening wine with views across one of Madrid’s most exclusive neighbourhoods. The interiors showcase meticulous craftsmanship, from the herringbone oak floors and restored original radiators to the sculptural black Marquina marble accents and bespoke woodwork.
The heart of the home is an expansive living and dining area, complete with a decorative fireplace and a street-facing balcony. A separate kitchen—framed by custom iron and glass doors—features hand-finished oak cabinetry, a bespoke stone countertop, and top-tier Porcelanosa fittings. Every detail has been designed to harmonise luxury with everyday functionality.
Each bedroom is positioned for maximum comfort and privacy, overlooking a peaceful, light-filled inner courtyard. The master suite stands out with its spa-inspired marble bathroom and custom-built vanity. Additional bathrooms echo the same artisanal finishes, including glass mosaic tiling and Porcelanosa fixtures.
With six weeks’ exclusive use annually, Ático Hermosilla offers discerning buyers a refined way to own a piece of Madrid’s prime real estate—without the full-time commitment. Whether hosting guests or enjoying quiet sophistication, this penthouse is a unique expression of thoughtful design and timeless beauty.
Madrid is one of the most desirable locations in Spain for discerning property buyers. This apartment represents an exceptional fractional ownership opportunity, allowing you to secure a deeded share of a premium residence without the financial burden of full acquisition costs.
Spain remains one of Europe’s most popular destinations for second home buyers, with consistently strong rental demand, a warm Mediterranean climate, and excellent transport links to major European cities.
Co-ownership through Co-Ownership Property means you purchase a legal share of the property, giving you exclusive access for a defined number of weeks per year. All running costs — maintenance, insurance, property management, utility standing charges, and local taxes — are shared proportionally among co-owners. This dramatically reduces the cost of owning and maintaining a premium property abroad compared to sole ownership.
There are no hidden fees or complex club structures. You own a genuine fraction of the property, with the security of deeded title and full legal protection. When you choose to exit, you can sell your share on the open market, and any appreciation in property value is yours to benefit from.
The Spanish luxury property market has demonstrated strong capital growth, particularly in prime coastal locations where supply is restricted by planning regulations. Fractional ownership unlocks access to this market at a significantly lower entry point, making it ideal for buyers seeking genuine real estate investment value alongside personal use benefits.
To find out more about available shares, pricing, usage calendars, and the buying process for this Madrid apartment, contact Co-Ownership Property today. Our specialists will guide you through every aspect of fractional ownership and help you secure the perfect slice of luxury real estate.
Located in the heart of Madrid’s prestigious Salamanca district, Ático Hermosilla is a striking blend of heritage charm and contemporary elegance—offered through fractional ownership. Set on the top floor of a restored classic building on Calle Hermosilla, this 175 m² penthouse has been completely reimagined by renowned architect Mónica Diago to deliver a highly refined and luminous city retreat.
This spacious 3-bedroom, 3-bathroom home features a 16 m² private terrace, ideal for morning coffee or evening wine with views across one of Madrid’s most exclusive neighbourhoods. The interiors showcase meticulous craftsmanship, from the herringbone oak floors and restored original radiators to the sculptural black Marquina marble accents and bespoke woodwork.
The heart of the home is an expansive living and dining area, complete with a decorative fireplace and a street-facing balcony. A separate kitchen—framed by custom iron and glass doors—features hand-finished oak cabinetry, a bespoke stone countertop, and top-tier Porcelanosa fittings. Every detail has been designed to harmonise luxury with everyday functionality.
Each bedroom is positioned for maximum comfort and privacy, overlooking a peaceful, light-filled inner courtyard. The master suite stands out with its spa-inspired marble bathroom and custom-built vanity. Additional bathrooms echo the same artisanal finishes, including glass mosaic tiling and Porcelanosa fixtures.
With six weeks’ exclusive use annually, Ático Hermosilla offers discerning buyers a refined way to own a piece of Madrid’s prime real estate—without the full-time commitment. Whether hosting guests or enjoying quiet sophistication, this penthouse is a unique expression of thoughtful design and timeless beauty.
Madrid is one of the most desirable locations in Spain for discerning property buyers. This apartment represents an exceptional fractional ownership opportunity, allowing you to secure a deeded share of a premium residence without the financial burden of full acquisition costs.
Spain remains one of Europe’s most popular destinations for second home buyers, with consistently strong rental demand, a warm Mediterranean climate, and excellent transport links to major European cities.
Co-ownership through Co-Ownership Property means you purchase a legal share of the property, giving you exclusive access for a defined number of weeks per year. All running costs — maintenance, insurance, property management, utility standing charges, and local taxes — are shared proportionally among co-owners. This dramatically reduces the cost of owning and maintaining a premium property abroad compared to sole ownership.
There are no hidden fees or complex club structures. You own a genuine fraction of the property, with the security of deeded title and full legal protection. When you choose to exit, you can sell your share on the open market, and any appreciation in property value is yours to benefit from.
The Spanish luxury property market has demonstrated strong capital growth, particularly in prime coastal locations where supply is restricted by planning regulations. Fractional ownership unlocks access to this market at a significantly lower entry point, making it ideal for buyers seeking genuine real estate investment value alongside personal use benefits.
To find out more about available shares, pricing, usage calendars, and the buying process for this Madrid apartment, contact Co-Ownership Property today. Our specialists will guide you through every aspect of fractional ownership and help you secure the perfect slice of luxury real estate.
Located in the heart of Madrid’s prestigious Salamanca district, Ático Hermosilla is a striking blend of heritage charm and contemporary elegance—offered through fractional ownership. Set on the top floor of a restored classic building on Calle Hermosilla, this 175 m² penthouse has been completely reimagined by renowned architect Mónica Diago to deliver a highly refined and luminous city retreat.
This spacious 3-bedroom, 3-bathroom home features a 16 m² private terrace, ideal for morning coffee or evening wine with views across one of Madrid’s most exclusive neighbourhoods. The interiors showcase meticulous craftsmanship, from the herringbone oak floors and restored original radiators to the sculptural black Marquina marble accents and bespoke woodwork.
The heart of the home is an expansive living and dining area, complete with a decorative fireplace and a street-facing balcony. A separate kitchen—framed by custom iron and glass doors—features hand-finished oak cabinetry, a bespoke stone countertop, and top-tier Porcelanosa fittings. Every detail has been designed to harmonise luxury with everyday functionality.
Each bedroom is positioned for maximum comfort and privacy, overlooking a peaceful, light-filled inner courtyard. The master suite stands out with its spa-inspired marble bathroom and custom-built vanity. Additional bathrooms echo the same artisanal finishes, including glass mosaic tiling and Porcelanosa fixtures.
With six weeks’ exclusive use annually, Ático Hermosilla offers discerning buyers a refined way to own a piece of Madrid’s prime real estate—without the full-time commitment. Whether hosting guests or enjoying quiet sophistication, this penthouse is a unique expression of thoughtful design and timeless beauty.
Madrid is one of the most desirable locations in Spain for discerning property buyers. This apartment represents an exceptional fractional ownership opportunity, allowing you to secure a deeded share of a premium residence without the financial burden of full acquisition costs.
Spain remains one of Europe’s most popular destinations for second home buyers, with consistently strong rental demand, a warm Mediterranean climate, and excellent transport links to major European cities.
Co-ownership through Co-Ownership Property means you purchase a legal share of the property, giving you exclusive access for a defined number of weeks per year. All running costs — maintenance, insurance, property management, utility standing charges, and local taxes — are shared proportionally among co-owners. This dramatically reduces the cost of owning and maintaining a premium property abroad compared to sole ownership.
There are no hidden fees or complex club structures. You own a genuine fraction of the property, with the security of deeded title and full legal protection. When you choose to exit, you can sell your share on the open market, and any appreciation in property value is yours to benefit from.
The Spanish luxury property market has demonstrated strong capital growth, particularly in prime coastal locations where supply is restricted by planning regulations. Fractional ownership unlocks access to this market at a significantly lower entry point, making it ideal for buyers seeking genuine real estate investment value alongside personal use benefits.
To find out more about available shares, pricing, usage calendars, and the buying process for this Madrid apartment, contact Co-Ownership Property today. Our specialists will guide you through every aspect of fractional ownership and help you secure the perfect slice of luxury real estate.
Buy only the share you need — with genuine deeded ownership, shared costs, and full resale rights.
Not a timeshare. Not a club. Real property ownership, made accessible.

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