Cookies policy, as well as all the subdomains of this website, are the property of BIREN Engineering & Architecture, with N.I.F.: Nº B-04980280 (hereinafter “THE COMPANY”).

1. What are cookies?

Cookies are small data files that the website sends to your computer and that are stored in the user’s browser, so that the website can consult them on future visits and improve the user experience by knowing what they have done previously on this website.

Cookies can be deleted, accepted or blocked as you wish. How to do this is shown later in this document.

2. What types of cookies does this website use?

According to the provisions of article 22.2 of Law 34/2002, of July 11, on Services of the Information Society and Electronic Commerce (LSSI-CE), we inform you of the cookies used on our website.

-utmaGoogleTemporaryAnalysisThird partiesThis cookie is usually installed in the browser on your first visit to the website from that web browser. It is used to determine unique visitors to this website and is updated with each page view. It is provided with a unique identifier that Google Analytics uses to ensure both the validity and accessibility of the cookie as an additional security measure.
-utmzGoogleTemporaryAnalysisThird partiesThis cookie stores the type of reference used by you to reach this website. It is used to calculate search engine traffic, advertising campaigns and page navigation within this website.
-utmbGoogleTemporaryAnalysisThird partiesThis cookie is used to establish and continue a user session with this website. Each time you visit a different page on this website, this cookie is updated to expire in 30 minutes, continuing at 30-minute intervals. This cookie expires when you pause on a page of this website for more than 30 minutes.
-utmcGoogleSessionAnalysisThird partiesThis cookie works in conjunction with the _utmb cookie to determine whether or not to establish a new session for you. This cookie will expire when you exit the browser.
PREFGoogle Maps2 yearsInformation mapsThird partiesThis cookie is used by Google to store user preferences and information when viewing pages with Google maps.
NIDGoogle Maps6 monthsInformation mapsThird partiesThis cookie is used by Google to store user preferences and information when viewing pages with Google maps.

Statistical data of navigation.

We use Google Analytics to analyze how visitors use this site. Google Analytics uses various cookies: text files placed on your computer that collect information about visitor behavior. No personally identifiable information is collected about the visitor unless you explicitly authorize it through a form on this website.

The anonymous information generated by the Google Analytics cookies about the use of this website (including your IP address) is transmitted to Google. This information is processed to compile statistical reports on website activity. We use these reports to evaluate the use of this website and to be able to optimize the content. The IP address is not linked to a user’s identity or personally identifiable information from any source, unless you explicitly authorize it through a form on this website.

3. What do we use cookies for?

In addition to what is indicated in the previous point, THE COMPANY uses cookies that are strictly necessary and essential for you to use our website and provide you with personalized options and faster access to the information you are looking for.

Our site may also have links to social networks, in which case THE COMPANY does not control the cookies used by these external websites. For more information about cookies from social networks or other third-party websites, we recommend reviewing their own cookie policies.

Some of our cookies are used to generate information on third party networks.

4. How do we use the different types of cookies?

According to its purpose

Technical Cookies: Technical cookies are those strictly necessary for the proper functioning of a website and the use of the different options and services it offers. They are used to keep the session open, optimize response time, performance or validation of options, use security elements, share content with social networks, etc.

Personalization cookies: They allow the user to customize some characteristics of the general options of the Web page, for example, define the language or type of browser.

Analytical cookies: They help us to develop browsing profiles and to be able to know the preferences of users when browsing our website in order to improve the offer of products and services. For example, the geographical areas of greatest interest to a user or the products they visit the most would be controlled.

Advertising cookies: Advertising cookies allow the management of advertising spaces based on criteria such as the frequency of access to the web, the sections visited, etc. Advertising cookies allow behavioral information to be stored through the observation of habits, studying accesses and forming a profile of user preferences, to offer advertising related to the interests of your profile.

5. How long are they stored?

Session cookies: are those that last as long as the user is browsing the Web page and are deleted at the end.

Persistent cookies: These cookies are stored in the user’s terminal for a longer time, thus facilitating the control of the chosen preferences without having to repeat certain parameters each time the website is visited.

6. What does it mean to accept our cookie policy?

With this, you allow us to offer you optimal access and give you a more efficient and personalized service according to your habitual use of our website.

THE COMPANY demonstrates its commitment to current legislation by providing you with information about the cookies we use and why we do so. With this, we intend to provide you with transparency regarding the data processed about the navigation carried out from your computer on our website.

7. Social plugins

This website may have enabled social buttons on social networks to allow the user to share content that is of interest to them with their social circle. Likewise, the social buttons save you the hassle of providing your personal data to this website by taking advantage of the information already shared in the field of social networks.

  • For more information on Facebook cookies:
  • For more information on Twitter cookies:

Configuration of your computer to disable the installation of cookies

You can configure your browser so that only trusted websites or the pages you are currently browsing can manage cookies, allowing you to select your preferences.

First of all, we inform you that if you disable the installation of cookies on your computer, some features of this website may not be available. Likewise, THE COMPANY informs the user that they have the possibility of configuring their browser so that they are informed of the reception of cookies, being able, if they wish, to prevent them from being installed on their hard drive.

Below we provide the links of various browsers, through which you can make this configuration:

In short, anonymity is safe. That is our personal commitment to you as a user of our website.

If you agree with the cookies policy of this website, click ACCEPT in the message that appears when you enter our page.

More information

If you have any question about how we use cookies, and it is not answered in this policy, please send us your comments via email


Calle Cifuentes, 5 | 28021 | Madrid

+34 653 10 52 81


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