amounts necessary to defray the loans or financing granted for this purpose, shall be
considered as general expenses for the purposes of applying the rules established in
letter e) of Article 9.1 of this Act.
3. The establishment or suppression of porter's lodge, concierge, surveillance or other
common services of general interest, whether or not they imply modification of the
constitutive title or of the Bylaws, shall require the favourable vote of three fifths of the
total number of owners representing three fifths of the coefficients of participation.
The same regime shall apply to the letting of common elements that have not been
assigned a specific use in the building and the installation or removal of equipment or
systems, not included in section 1, that are intended to improve the energy or water
efficiency of the building. In the latter case, agreements validly adopted in accordance
with this rule are binding on all owners. However, if the equipment or systems have a
private use, for the adoption of the agreement, the favourable vote of one third of the
members of the community representing, in turn, one third of the participation quotas will
be sufficient, applying, in this case, the system of repercussion of costs established in
the aforementioned section.
4. No owner may demand new installations, services or improvements not required for
the adequate conservation, habitability, security and accessibility of the property,
according to its nature and characteristics.
However, when by the favourable vote of three fifths of the total number of owners
representing three fifths of the coefficients of participation, agreements are validly
adopted to carry out innovations, new installations, services or improvements not
required for the adequate conservation, habitability, security and accessibility of the
property, according to its nature and characteristics, habitability, safety and accessibility
of the property, which are not required and whose installation fee exceeds the amount
of three ordinary monthly instalments of common expenses, the dissenting party shall
not be obliged, nor shall his share be modified, even if he cannot be deprived of the
improvement or advantage. If the dissenting party wishes, at any time, to participate in
the advantages of the innovation, he must pay his share in the costs of realisation and
maintenance, duly discounted by the application of the corresponding legal interest.