YIT'S ENERGYGENIUS OFFICE BUILDING AVIA LINE II TO BE BUILT

YIT CORPORATION        PRESS RELEASE    October 13, 2010 at 10:45               


YIT'S ENERGYGENIUS OFFICE BUILDING AVIA LINE II TO BE BUILT IN VANTAA, HELSINKI 
REGION                                                                          

YIT is building a package of four office buildings in the Aviapolis area of     
Vantaa, in the Helsinki region. The first stage, Avia Line I, has already been  
completed. The under-construction Avia Line II will embody YIT's                
energy-efficient office construction technology and it will be completed in     
February 2011 to be at the disposal of Philips Oy and Geotrim Oy. The said      
office real estate comprises 3,000 sq. m. and it is owned by IVG Institutional  
Funds. The building of Avia Line III will be launched in early 2011, also in the
vein of YIT's energy-efficient office building technology.                      

Avia Line II is an example of YIT's EnergyGenius office building technology     
where energy consumption is 25% below the requirements of current building      
regulations. When planning this building, due attention has been paid to        
creating energy efficient structures and solutions. The air-tightness of the    
building has been improved and the windows have been protected with a membrane  
providing protection from sunlight. Savings in the future maintenance costs of  
the building will be gained through the selection of the building's technical   
systems and machinery. Avia Line II's heat recovery solutions enable an         
efficiency ratio in excess of 70%. Also, the energy values of ventilation       
machinery have been lowered.                                                    

Avia Line II's energy consumption solutions achieve Green Building status       

EnergyGenius Avia Line II has been accepted into the GreenBuilding Programme. An
office building that has been granted the GreenBuilding status is characterised 
by energy consumption that is at least 25% below the level stipulated by the    
building regulations in effect in the year during which the building was        
constructed. The purpose of the GreenBuilding Programme launched by the European
Commission in 2005 is to improve the energy efficiency of commercial and office 
buildings within the EU.                                                        

YIT is engaged in the development and implementing of EnergyGenius homes, office
buildings, industrial and infrastructure solutions and services.                

Additional information                                                          
Timo Immonen, Project Manager, YIT Toimitilat, tel. 0400 502 649.               
Tommi Kokkonen, Development Manager, YIT Toimitilat, tel. 0400 609 806.         

YIT CORPORATION                                                                 

Virva Salmivaara                                                                
Senior Vice President, Corporate Communications                                 

Distribution: Principal media, www.yitgroup.com                                 

YIT is a leading European service company in building systems, construction     
services and services for industry. We build, develop and maintain quality      
living environments in the Nordic countries, Central Europe, Russia, and the    
Baltic countries. In 2009, YIT's revenue amounted to EUR 3.5 billion. The Group 
employs over 25,500 people. YIT's share is listed on NASDAQ OMX Helsinki.
YIT'S ENERGYGENIUS OFFICE BUILDING AVIA LINE II TO BE BUILT IN VANTAA, HELSINKI REGION
