Villa Girasole
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The Villa Girasole (il girasole meaning ‘the sunflower’ in Italian) is a house constructed in the 1930s in Marcellise, northern
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
, near
Verona Verona ( ; ; or ) is a city on the Adige, River Adige in Veneto, Italy, with 255,131 inhabitants. It is one of the seven provincial capitals of the region, and is the largest city Comune, municipality in the region and in Northeast Italy, nor ...
. The conception of
architect An architect is a person who plans, designs, and oversees the construction of buildings. To practice architecture means to provide services in connection with the design of buildings and the space within the site surrounding the buildings that h ...
Angelo Invernizzi, the Girasole rotates to follow the sun as it moves, just as a
sunflower The common sunflower (''Helianthus annuus'') is a species of large annual forb of the daisy family Asteraceae. The common sunflower is harvested for its edible oily seeds, which are often eaten as a snack food. They are also used in the pr ...
opens up and turns to follow the sun. This is how the unique house got its name.


Architect

Angelo Invernizzi, a wealthy Italian engineer of
Genoa Genoa ( ; ; ) is a city in and the capital of the Italian region of Liguria, and the sixth-largest city in Italy. As of 2025, 563,947 people live within the city's administrative limits. While its metropolitan city has 818,651 inhabitan ...
,
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
, dreamed of building a house that would “maximize the health properties of the sun by rotating to follow it”. He designed the house for himself with the help of Romolo Carapacchi, a
mechanical engineer Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations o ...
; Fausto Saccorotti, an
interior decorator Interior design is the art and science of enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space. With a keen eye for detail and a creative flair, an interior ...
; and Ettore Fagiuoli, an
architect An architect is a person who plans, designs, and oversees the construction of buildings. To practice architecture means to provide services in connection with the design of buildings and the space within the site surrounding the buildings that h ...
. Invernizzi’s daughter, Lidia Invernizzi, described in the 17-minute film “Il girasole: una casa vicino a Verona” by Marcel Meili and Christoph Schaub, Invernizzi could have built the house himself, but he instead invited many people to participate in its creation:
painters Painting is a Visual arts, visual art, which is characterized by the practice of applying paint, pigment, color or other medium to a solid surface (called "matrix" or "Support (art), support"). The medium is commonly applied to the base with ...
,
sculptors Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable ...
, furniture makers, and more. “People who believed in a new era: nothing should be built as before.” Having a family connection to Marcellise, even though working and living in
Genoa Genoa ( ; ; ) is a city in and the capital of the Italian region of Liguria, and the sixth-largest city in Italy. As of 2025, 563,947 people live within the city's administrative limits. While its metropolitan city has 818,651 inhabitan ...
, he wanted to build the house there in its hilly splendor and with its memories of a simpler life.


History and construction

Invernizzi first began drawing
designs A design is the concept or proposal for an object, process, or system. The word ''design'' refers to something that is or has been intentionally created by a thinking agent, and is sometimes used to refer to the inherent nature of something ...
for his rotating house in 1929, but construction started in 1931, only during summer months. Invernizzi and his team used the project as a means to experiment with new materials, like
concrete Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactur ...
and
fibre cement Fibre cement is a composite building and construction material, used mainly in roofing material, roofing and facade products because of its strength of materials, strength and durability. One common use is in fiber cement siding on buildings. Mat ...
. "In keeping with the project's experimental nature, a considerable amount of adaptation and refinement accompanied construction". They ended up using
aluminium Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...
sheeting to replace the concrete on the outside walls because the concrete had left cracks. At first, Invernizzi only expected the house to make a 180 degree turn, but eventually after he saw it make the 180 degree turn, he "decided to make the complete turn" of 360 degrees. The project was complete in 1935, after four years.


Interior/Exterior

The Girasole has two storeys and is shaped like the letter "L". It sits on an over 44 metre circular base, with a 42 metre tall tower at the centre. This is where the house rotates from, using
motors An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power gene ...
. The "L" rotates "over three circular tracks where 15 trolleys can slide the 5,000 cubic metres building at a speed of 4 mm per second and it takes 9 hours and 20 minutes to rotate fully". There is a manual control panel located in the moving part of the house that is used to control its rotation. The first floor of the moving part is known as the "day zone", and includes the dining room, the music room, Mr. and Mrs. Invernizzi’s studies, with the kitchen, pantry, and toilet located right near the central tower. An assortment of bedrooms and bathrooms are found on the second floor. Villa Girasole’s
interior design Interior design is the art and science of enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space. With a keen eye for detail and a Creativity, creative flair, an ...
is such that one experiences a number of different progressions of light throughout the day: "Though the views from either wing differ at any given moment, they share a general orientation to the sun, reducing the chance for conflict over which direction the house should point. All rooms could share an equal amount of daylight or shade".


Machinery

Villa Girasole runs on two
diesel fuel Diesel fuel, also called diesel oil, heavy oil (historically) or simply diesel, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a re ...
motors which move the house over
circular Circular may refer to: * The shape of a circle * ''Circular'' (album), a 2006 album by Spanish singer Vega * Circular letter (disambiguation), a document addressed to many destinations ** Government circular, a written statement of government pol ...
tracks and allow trolleys to slide the house along. It has been suggested that because the front of the house faces the sun all day, installing
solar panels A solar panel is a device that converts sunlight into electricity by using photovoltaic (PV) cells. PV cells are made of materials that produce excited electrons when exposed to light. These electrons flow through a circuit and produce direct ...
on the roof would be beneficial: gaining and storing energy for those times when the sun is not out.''Angelo Invernizzi's Rotating House.'' Fractal Enlightenment


References


External links

* (with images) *
Villa Girasole
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Architectuul
{{Coord missing, Italy
Girasole Girasole () is a ''comune'' (municipality) in the Province of Nuoro in the Italian region Sardinia, located about northeast of Cagliari and about northwest of Tortolì. Girasole borders the following municipalities: Lotzorai, Tortolì, and Vil ...
Solar design Houses completed in 1930