The Green Building Certifications

Class A Energy Certification

Green Building Certifications

According to the requirements established in Directive 2002/91/EC of the European Parliament (RD 235/2013 of 5 April), at BASS we guarantee all our homes with an A classification. We are thus ahead of the European Directive 2010/30/EU on the energy efficiency of buildings, by which, from 2020, all member countries must take measures to ensure that new buildings have almost zero energy consumption.

BREEAM® Certification

It is the world’s leading sustainability assessment and certification method for buildings, with more than 20 years in the market and more than 270,000 certified buildings in 63 countries.

This seal promotes a more sustainable construction that has repercussions in economic, environmental and social benefits for all the people linked to the life of a building (promoters, owners, tenants and/or users), while at the same time transferring the Corporate Social Responsibility of the company to society and to the market in an unequivocal and easily perceptible way.


It should be noted that 60% of European real estate investors choose BREEAM® as their first choice. [ InformeDLA Piper, March 2014 ]

PASSIVE HOUSE Certification

Passive House or Passivhaus it is a standard for housing construction originated by Professors Bo Adamson and Wolfgang Feist.

It is based on building constructions that have great thermal insulation, a rigorous control of infiltrations, and maximum indoor air quality, as well as taking advantage of the sun’s energy for better climatization, reducing energy consumption by 70% (over conventional constructions).

In the case of Passivhaus Spain, an improvement of 60% with respect to the standard consumption of a new building could be achieved, thus achieving the best possible energy classification: class A.


The GBCe Association is an autonomous, not-for-profit organization affiliated with the World Green Building Council, WGBC, of which the Spanish Council is a recognized full member. The process has been guided by the United States Green Building Council, USGBC responsible for the LEED certificate.

It also works within the framework of the International Initiative for a Sustainable Built Environment, iiSBE, based in Ottawa (Canada), of which it constitutes the Spanish Chapter.