28/05/2026: Soil groups added (Geology). Reconfigured the opacity function in the toolbar.
25/05/2026: Archaeological Sites added (Public Places - Urban Planning).
18/05/2026: Dedicated bus lanes added (Transportation Systems - Road Transport).
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Athens GIS Repository is an open-access geospatial data platform providing datasets related to Greece and the Attica region.
Maintainer: Konstantinos Markos
DOI: https://doi.org/10.5281/zenodo.18727779
Hosting Provider: GitHub
Unless otherwise stated, datasets and materials published on this website are licensed under:
Creative Commons Attribution 4.0 International (CC-BY 4.0)
This license allows users to:
Under the condition that:
Full license text: https://creativecommons.org/licenses/by/4.0/
Certain datasets may incorporate material derived from third-party sources such as:
Such materials remain subject to their respective licensing terms.
If data from this repository are used in academic, research, or professional work, users are requested to cite.
All datasets and materials are provided “as is” without warranty of any kind, express or implied.
Athens GIS Repository and its maintainer shall not be held liable for:
Users are responsible for verifying the suitability and accuracy of data for their specific applications.
Cookie PolicyAthens GIS Repository
This Cookie Policy explains how Athens GIS Repository uses cookies and similar technologies when users visit the website. Cookies are used to ensure the proper functioning of the website and to provide information about how visitors interact with its content. Through these technologies the website operator can monitor usage patterns, improve performance, and enhance the overall user experience. This policy explains what cookies are, what types of cookies may be used on the website, and how users can manage their preferences. It should be read together with the website’s Privacy Policy.
Cookies are small text files that are stored on a user’s device, such as a computer, smartphone, or tablet, when visiting a website. They enable websites to recognize a user’s device and store certain information about preferences or past actions. Cookies may be temporary (“session cookies”), which are deleted automatically when the browser is closed, or persistent cookies, which remain on the device for a defined period of time.
Athens GIS Repository uses a limited number of cookies in order to ensure the correct operation of the platform and to better understand how the website is used. Strictly necessary cookies are required for the basic functionality of the website, including page navigation and secure access to certain services. Without these cookies the website may not operate correctly. In addition, analytics cookies may be used to understand how visitors interact with the website and how the platform performs. These cookies help the website operator analyze usage patterns and improve the usability and performance of the repository. The website does not use advertising, marketing, or profiling cookies.
Some cookies may be placed by third-party analytics services integrated into the website. The website uses Google Analytics, a web analytics service provided by Google, which collects anonymized information about website usage such as the number of visitors, pages visited, time spent on pages, and general navigation patterns. These data help improve the performance and usability of the website. Additional information about how Google processes data is available at: https://policies.google.com/privacy.
The website also uses PostHog, an analytics platform configured to operate within the European Union data region. PostHog collects information related to user interactions with the platform, including event interactions, navigation behavior, and device metadata. These data are used solely for product analytics, feature evaluation, and platform optimization. More information can be found at: https://posthog.com/privacy.
5. Legal Basis for the Use of Cookies
Under the General Data Protection Regulation (GDPR) and the EU ePrivacy Directive, cookies that are not strictly necessary for the operation of the website may only be stored on a user’s device after obtaining the user’s consent. When visiting the website for the first time, users are presented with a cookie consent banner where they can choose whether to accept or reject analytics cookies. Strictly necessary cookies are used to ensure the functionality of the website and do not require prior consent. Users may withdraw their consent at any time by modifying their browser settings or deleting stored cookies.
Users have the ability to manage cookies through several methods. Cookie preferences can be adjusted through the cookie consent mechanism available on the website, allowing users to accept or reject certain categories of cookies. In addition, most web browsers allow users to control cookies through their settings. Browsers typically provide options to block cookies, delete stored cookies, or receive notifications when cookies are placed. Instructions for managing cookies can usually be found in the help sections of common browsers such as Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari. Please note that disabling cookies may affect the functionality of certain parts of the website.
Information collected through cookies may be processed by trusted third-party providers that support website analytics and infrastructure. These providers process data only for the purposes described in this policy and under appropriate contractual and data protection safeguards. Where data are transferred outside the European Economic Area, appropriate legal safeguards are applied, including the use of Standard Contractual Clauses approved by the European Commission.
Cookies are stored for different periods depending on their purpose. Session cookies are automatically deleted when the user closes the browser, while persistent cookies remain on the device for a limited period determined by the service provider. Analytics data retention periods are configured within the analytics services used by the website and are limited to the time necessary for statistical analysis and platform improvement.
This Cookie Policy may be updated periodically in order to reflect changes in applicable legislation, updates to the website’s functionality, or modifications to the analytics services used. Users are encouraged to review this page regularly to remain informed about how cookies are used.
For any questions regarding this Cookie Policy or the processing of personal data in connection with the website, users may contact the Athens GIS Repository Team through the contact information provided on the website. For further information regarding the processing of personal data, please refer to the website’s Privacy Policy.
Privacy PolicyAthens GIS Repository
This Privacy Policy explains how personal data may be collected, processed, and protected when users access the Athens GIS Repository website. The repository is an open-access platform providing geospatial datasets related to Athens and in general the Attica region for research, educational, and professional purposes. The platform is committed to protecting user privacy and ensuring transparency regarding any processing of personal data in accordance with Regulation (EU) 2016/679 (General Data Protection Regulation - GDPR) and the EU ePrivacy Directive. This policy describes the types of information that may be collected, the purposes for which such information is processed, the legal basis for processing, the recipients of data, retention periods, and the rights of users regarding their personal data.
The entity responsible for the processing of personal data in connection with this website is the Athens GIS Repository Team, maintained by Konstantinos Markos. Users with questions or concerns regarding privacy or the processing of personal data may contact the repository team through the website’s contact information.
The Athens GIS Repository does not require user registration and does not intentionally collect personally identifiable information from visitors. However, limited technical and usage data are automatically collected during website access. These data typically include anonymized IP addresses, browser and device information, operating system, approximate geographic location, referring URLs, visited pages, time spent on the website, navigation patterns, and technical diagnostic logs. These data are used exclusively for purposes related to technical monitoring, platform security, and usage analytics. The repository does not collect financial information, payment details, or sensitive personal data.
The processing of data through the website is strictly limited to specific purposes, including monitoring the performance and availability of the platform, analyzing user interactions to improve usability, ensuring the technical security of the platform, detecting and preventing unauthorized or malicious activity, and maintaining reliable access to datasets and research materials. The platform does not engage in automated decision-making or profiling based on collected data.
The legal bases for processing personal data are primarily the explicit consent of users, which is obtained through the cookie consent banner when analytics cookies are used, and the legitimate interest of the repository in maintaining the security, stability, and performance of the website. Users may withdraw their consent at any time by adjusting browser settings or deleting cookies.
To understand website usage and improve the platform, Athens GIS Repository employs third-party analytics services. Google Analytics 4 collects anonymized IP addresses, device and browser information, navigation behavior, session duration, and usage statistics. IP anonymization is enabled, and Google may process data on servers outside the European Union under safeguards such as Standard Contractual Clauses. For further details, see Google’s Privacy Policy at https://policies.google.com/privacy. The repository also uses PostHog, which operates exclusively within the European Union data region. PostHog collects event interaction data, navigation paths, device metadata, and technical logs to facilitate product analytics, feature evaluation, and platform optimization. More information is available at https://posthog.com/privacy.
Personal data collected through analytics services are retained only as long as necessary to fulfill the purposes outlined in this policy. Retention periods depend on the configuration of the analytics platforms, technical monitoring requirements, and security logging needs. Where feasible, data are aggregated or anonymized. The repository periodically reviews stored information and removes or anonymizes data that are no longer necessary.
Access to data collected through the website is strictly limited. Internal access is granted only to authorized administrators responsible for maintaining the repository and website infrastructure. External service providers may process technical data solely to provide hosting, analytics, and security services, acting as data processors under contractual obligations and instructions from the repository. Personal data may also be disclosed to competent authorities in compliance with legal obligations, court orders, or regulatory requirements.
The website is hosted using GitHub infrastructure, which may process technical server logs including IP addresses, access timestamps, and browser information. Further information about GitHub’s privacy practices is available at https://docs.github.com/en/site-policy/privacy-policies/github-privacy-statement.
Athens GIS Repository implements appropriate technical and organizational measures to protect data against unauthorized access, loss, or misuse. These measures include encrypted communications via HTTPS/TLS, firewalls and network protection systems, monitoring tools to detect abnormal traffic or malicious activity, access controls restricting administrative privileges, and security logging and auditing mechanisms. While no system can guarantee absolute security, the repository continuously updates its safeguards in line with best practices.
Some analytics providers may process data outside the European Economic Area. Where this occurs, transfers rely on appropriate safeguards such as Standard Contractual Clauses approved by the European Commission, provider compliance frameworks, and contractual obligations ensuring data protection.
Users have rights under the General Data Protection Regulation, including the right to access, correct, or erase personal data, restrict processing, obtain data portability, and object to processing. Requests may be submitted via the contact details provided by the repository team. Users also have the right to lodge a complaint with a supervisory authority.
For users located in Greece, the competent authority is the Hellenic Data Protection Authority (HDPA). Further information is available at https://www.dpa.gr/.
This Privacy Policy may be updated periodically to reflect changes in applicable law, analytics tools or infrastructure, or improvements to the platform. Users are encouraged to review this page regularly.
The Athens GIS Repository is operated from Greece. Any disputes related to the use of the website or this Privacy Policy shall be governed by Greek law and applicable European Union law.
This website uses analytics tools (Google Analytics & PostHog) to improve user experience. You can accept or reject non-essential cookies.
by Konstantinos Markos | PhD Candidate, SRSGE, NTUA
Explore the geography of the Athens Metropolitan Area with interactive maps and data. Here you’ll find layers on administrative boundaries, transportation networks, environment, natural hazards, POIs, energy and population statistics, all in one place.
Use the panel on the left to select the layers you want to view, and download data. Click on features to see detailed information, and use the tools provided to explore Athens in more depth.
This repository is a work in progress. More data and features will be added over time, so check back often for updates!
Have fun exploring Athens!
Licenced under Commons Attribution 4.0 International (CC-BY 4.0)