MERLIN PROPERTIES - Atica 4

ÁTICA 4 is a multitenant existing office building located in Pozuelo de Alarcón (Madrid) where different companies have established their main headquarters.

The building is compound by six floors, four of them above ground for office use (a low level and three additional floors). Below ground, there are two floors for parking space. The site area is compound by a vegetated space, hard surfaces and the building footprint.

This project is operated and maintained following USGBC’ sustainability criteria most updated version for Existing Buildings. The project has obtained a GOLD certification with the participation of the owner (Merlin Properties), the building tenants and LEED Consultants.

One of the most distinguished features of the project is the high level of sustainability in terms of alternative transport. Due to the location of the building, a high percentage of occupants uses public transport for trips. Consequently, it makes possible to reach 14 points regarding alternative transport.

Other important aspects related to building sustainability are:

- 69,01% of the building occupants normally choose a sustainability alternative transportation to go to their job.

- 100% of parking lots are placed below ground level reducing heat island effect.

- An irrigation meter has been installed. Existing vegetated species allow to obtain a 49% reduction in irrigated water use.

- Existing efficient water supply fixtures, such as efficient urinals, public lavatory faucets and kitchen faucets allow to obtain a 33,31% potable water savings.

- An ASHRAE Energy Audit Level 2 has been developed in order to optimize facilities efficiency.

- A performance score of 13 points has been achieved considering multitenant energy consumptions.

- Lamps purchasing has led into a total mercury content per bulb of 0,00 picograms/lumen-hr). - The health and comfort of the occupants is addressed by the existing 100% outdoor air Air Handling Units. The filter efficiency of these units is at least F7.

- At least 80,87% of regularly occupied floor areas has access to quality views.