The following are the points to note about BERs.

• From the 1st of January 2009, all properties for sale or for rent (domestic or non-domestic) will require a Building Energy Rating (BER) Certificate and an advisory report from a certified BER assessor.
• The BER certifies a rating for energy use for space heating, water heating, ventilation and lighting, calculated on the basis of standard occupancy.
• The documentation will be required at the point of sale or rental of a building, or on completion of a new building.
• At this time the BER is only a rating of a building's energy efficiency.  The owner looking to sell or rent is under no obligation to make any recommended improvements.
• Exemptions apply to listed buildings of outstanding architectural or historical importance.
• There is no set fee for a BER assessment and the advice is to shop around for the best price.  Early indications are that the cost in Ireland for domestic buildings will be approximately €300 for an existing home and less for a new home.  The exact amount of the BER fee will be determined by competition among BER assessors.
• For non-residential buildings the fees will vary according to whether the building is new or existing and according to building size and complexity.
• A BER is valid for up to 10 years provided that there is no material change to the dwelling that could affect its energy performance.