Dataset for "Novel super-reduced, pedagogical model for scoping net zero buildings''

ZEBRA is a model for scoping net zero buildings (energy and/or carbon). It focuses on a first-principles, transparent approach to building physics and sustainability. The tool is meant to be used at very early design stage, to influence fundamental design decisions. Its scope is operational energy use (life cycle stage B6, EN 15978:2011) and upfront embodied carbon (life cycle stages A1-A5), although the commentary targets whole-life carbon.

The dataset corresponds to (1) the ZEBRA tool, (2) its validation and (3) built-in examples. The ZEBRA tool is a novel, super-reduced, pedagogical model for scoping net zero buildings.
The validation is after ASHRAE Standard 140-2017 for space heating demand intensity after HERS Bestest (Judkoff & Neymark 1995). The built-in examples are domestic buildings located in the UK and are described in the PDF files and implemented in ZEBRA.

building physics, zero carbon, building performance, sustainability, literate modelling, pedagogical model
Civil engineering and built environment

Cite this dataset as:
Fosas, D., Mitchell, R., Nikolaidou, E., Roberts, M., Allen, S., Walker, I., Coley, D., 2021. Dataset for "Novel super-reduced, pedagogical model for scoping net zero buildings''. Bath: University of Bath Research Data Archive. Available from:


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application/zip (62MB)

Different licences apply to different files in this dataset. CSV, MD and PDF files are licensed as CC BY-SA 4.0. XLSX files are licensed as GNU GPL (see notice in and full license terms within the LICENSE sheet within each file).


Daniel Fosas
University of Bath

Stephen Allen
University of Bath

Ian Walker
University of Bath

David Coley
University of Bath


University of Bath
Rights Holder


Data collection method:

The validation after HERS BESTEST contains a base model for a single zone, single storey building isolated in Colorado (USA). This base model (ID L100A) is then modified in a series of scenarios targetting different building properties, like glazing ratios, insulation levels, or shading conditions (IDs L110A to L324A and P110A to P150A). The examples are domestic buildings in the UK built with a desire to deliver a space heating demand better than the average of the national stock. These houses are described with the information that would be typically available early in the design process, following a first sketch of solutions that is meant to be influenced with ZEBRA.

Technical details and requirements:

The data is stored in plain-text files (either CSV or MD files, encoded in UTF-8) and spreadsheets (xlsx, Microsoft Excel 365, Version 2107 Build 14228.20226).

Additional information:

The ZIP file contains a blank version of the ZEBRA tool; a readme file; a folder containing example tasks (as PDF files) and solutions using the ZEBRA tool; and a folder containing a validation suite for the tool.


Engineering and Physical Sciences Research Council

Active Building Centre Research Programme

Publication details

Publication date: 9 November 2021
by: University of Bath

Version: 1


URL for this record:

Related papers and books

Fosas, D., Mitchell, R., Nikolaidou, E., Roberts, M., Allen, S., Walker, I., and Coley, D., 2022. Novel super-reduced, pedagogical model for scoping net zero buildings. Building and Environment, 208, 108570. Available from:

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Daniel Fosas


Faculty of Humanities & Social Sciences

Faculty of Engineering & Design
Architecture & Civil Engineering

Research Centres & Institutes
Centre for Energy and the Design of Environments (EDEn)
Centre for Doctoral Training in Decarbonisation of the Built Environment (dCarb)