construction Product

UWOT - Urban Water Optioneering Tool

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UWOT is a decision-support tool that allows users to compare different water management technologies (including water saving, recycling, treatment and drainage) at different scales. The tool simulates the urban water cycle by modelling individual water uses and technologies, and aggregates their combined effects at development scale. UWOT provides a range of technology combinations, which are ranked according to user-based criteria. This allows the user to determine which combination of technologies will be most appropriate or beneficial for their new development.

Target audience

UWOT is primarily targeted at water planners, developers and relevant consultants and is designed to be used during: 1) early and conceptual stage of development, for preliminary design and comparison of different options, 2)master planning stages of development, to have a holistic system view for the baseline and future (masterplan) scenarios.

Owner of the product

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Actors, their roles and interactions

  • Water utilities provide data concerning (waste) water supply and quality characteristics of the inflow (e.g., BOD);
  • Municipalities provide data related to water demand (for example, for irrigation needs of an examined park) or other information about the area of their responsibility (for example, the area of an examined park).


Unique selling points

  • Bottom-up, component based urban water circle model;
  • Multiple components, multiple technologies (DW, WW/GW, RW/Runoff);
  • Able to simulate flows on a daily/hourly time step, in scenarios that span years to decades;
  • Able to assist smartness in water, by modelling a range of decentralized, distributed interventions: RWH, GWR, blue-green areas, smart appliances and estimate water quantity and quality;
  • Able to assimilate (time-series, parameter) data from multiple sources;
  • Able to construct scenarios based on socio-economic assumptions;
  • Supports spatial scales from appliance level and up, house/neighbourhood/city;
  • Provides links with water and energy, water and nutrients.

Technical requirements

Available as stand-alone software (.exe) in MS Windows environments.

Hardware Requirements:

  • x86-64 CPU, preferably >= 8GB RAM and 256GB HD

Software Requirements:

  • OS: Windows 10, 8.1, 7, 2008R2, Thin PC as well as Windows Server 2016, 2012, and 2012R2
  • Dependencies: Microsoft Visual C++ 2010 x64 Redistributable

Software data

  • Windows
Software is available for research purposes free of charge upon request on a time limited license. For commercial purposes there are commercial agreement options.


  • Rozos, E., C. Makropoulos, and C. Maksimovic (2013). Rethinking urban areas: an example of an integrated blue-green approach, Water Science and Technology: Water Supply, 13 (6), 1534-1542, doi:10.2166/ws.2013.140.
  • Rozos, E., and C. Makropoulos (2013). Source to tap urban water cycle modelling, Environmental Modelling and Software, 41, 139-150, doi:10.1016/j.envsoft.2012.11.015, Elsevier.
  • Rozos, E., and C. Makropoulos (2012). Assessing the combined benefits of water recycling technologies by modelling the total urban water cycle, Urban Water Journal, 9 (1), doi:10.1080/1573062X.2011.630096.
  • Rozos, E., C. Makropoulos, and D. Butler (2010). Design robustness of local water-recycling schemes, Journal of Water Resources Planning and Management - ASCE, 136 (5), 531-538, doi:/10.1061/(ASCE)WR.19.
  • Makropoulos, C. K., Natsis, K., Liu, S., Mittas, K., and D. Butler (2008). Decision support for sustainable option selection in integrated urban water management, Environ. Modell. Software 23(12), 1448-1460.
  • Butler, D., Memon, F.A., Makropoulos, C., Southall, A. and Clarke, L. (2010). WaND – Guidance on water cycle management for new developments. C690 CIRIA, London.


Technologies applied by the product

Groundwater systems

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Rainwater harvesting systems

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Resource for Circular Economy

Urban Waterbuffer

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Case Studies applying the product