Our most important resource is our professional staff in all of our operating countries whose expertise we invest in. With strong financial capital, we are able to carry out diverse projects and services for our customers and society. In addition, the building environment requires a variety of building materials, such as soil, concrete and steel, which we use in our operations. Relationships with our thousands of partners and satisfied customers are essential resources for our excellence. YIT's brand as a leading urban developer, corporate culture and our diverse product and service concepts complement our prerequisites for creating the highest possible value.
We operate in four business areas: housing, business premises, infrastructure and property development.
Our residential construction in Finland and CEE countries mainly focuses on the development and construction of residential and residential development projects. We sell apartments to consumers and investors, rent them and offer and develop a variety of housing concepts and services for our clients.
It covers the construction of business premises and other public facilities, project development and property management. The projects are both self-developed and contracted, and in addition to new construction, the segment is implementing renovation projects. Finland is our main market area, but there are also operations in Estonia, Latvia, Lithuania and Slovakia.
We carry out diverse and demanding infrastructure projects such as roads, bridges, metro stations and water utilities. We also mine tunnels and mines and provide road maintenance services in Finland. Most of our projects are contracted, but we are also developing customised wind turbine foundations and providing related services and maintenance. In addition to Finland, our infrastructure construction operations extend to Sweden and Norway.
Our property development business focuses on property ownership. We gain from the assets we own as rental income and gain in value.
Our business model is based on a continuous stream of development projects, designing, construction, investing and providing services. We have an exceptional ability to develop projects with design responsibilities, and close internal co-operation between our various operations improves the productivity of the implementation phase. Our other sources of growth and profitability are the non-cyclical partnership properties and service business. The income stream from property ownership guarantees us long-term returns, while developing our diverse service offering aims to extend our value chain and return on our products. Our presence in the life cycle of the building guarantees better and more sustainable services to our customers.