Terms & Conditions

Data Security

We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect.

All data is stored in secure electronic systems accessible only to Oasys staff with both valid network login credentials and specific authorisation to access the system.  Our systems further limit data access by role to ensure data is available only to those who have a specific need to see it.

If at any point you suspect or receive a suspicious communication from someone suggesting they work for Oasys or a website claiming to be affiliated with Oasys, please forward the communication to us or report the incident by email to [email protected] or in writing to Oasys, 8 Fitzroy Street, London, UK, W1T 4BJ as soon as possible.

Data Security Notice Updated 27th February 2020

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Website Terms and Conditions

The contents of this web site are protected by copyright and other intellectual property rights under international conventions. No copying of any words, images, graphic representations or other information contained in this web site is permitted without the prior written permission of the webmaster for this site.

Oasys accepts no responsibility for the content of any external site that links to or from this site.

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Software Licensing Terms

Terms and Conditions of Purchase

The full conditions of purchase and maintenance for all Oasys desktop software are set out in the Oasys Software Licence and Support Agreement.

The full conditions of purchase and maintenance for Oasys Gofer and Oasys Giraphe are set out in the Gofer SaaS Agreement  and the Giraphe SaaS agreement.

All prices are subject to TAX at the current rate.

Prices and specifications are subject to change without notice – please ask for a written quotation.

Although every care has been taken to ensure the accuracy of all information contained herein, the contents do not form or constitute a representation, warranty, or part of any contract.

Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.

Maintenance & Support Services

Support and maintenance is included with all subscription licences for their full duration.

Annual maintenance contracts are available for software under a perpetual licence, prices are based on a percentage of the most recent list price.

This service includes:


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Residential building built with the elements in mind using Oasys GSA

Software Used on this Project

Project Overview

In Amstelkwartier, Amsterdam, a 70-meter-tall hybrid timber-concrete residential building was designed using Oasys GSA by Arup engineers with specific design considerations of all the elements the optimisation of daylight, water collection, wind and fresh air, green spaces, energy generation and the response to the urban envelope.


Fig. 1 Sustainable Design Concept for Elements (© Arup) 

With a total gross floor area of 14,800 m2, the building includes 70 mediumsized properties, 74 owner-occupied properties, commercial facilities, a green roof garden, and photovoltaic panels built into the building’s exterior. 

Beauty and the bit render

Fig. 2 Render of the final design (© Beauty and the Bit) 

How Oasys proved invaluable

For this project, Oasys GSA was used for structural analysis and as the design programme for linking into Rhino and Grasshopper. The workflow began with the creation of the GSA model using Grasshopper and GSA’s Application Programming Interface (API). The timber member results were then extracted from the GSA model then designed and optimised to Eurocode 5 using Python, with those results implemented back into Grasshopper. Updated cross-sections and any other changes were then sent back from Grasshopper to GSA using the API. This blend of software proved to be a powerful parametric tool, allowing an extensive and coherent exploration of the building design options. 

Design variations

Fig. 3 Design variations driven by a genetic optimisation algorithm, gradually improving performance (© Arup) 

In the early stages of the project, GSA’s API was used to automate the design of the timber elements and the faceted silhouette. GSA used in correlation with Rhino and Grasshopper meant that advanced parametric tools could be used by Arup for the design of both the whole structure and the individual members. From the in-depth analysis and intricate modelling of the building using GSA, the project team optimised the timber-steel-concrete hybrid support structure and kept in line with the sustainability objectives by reducing the CO2 footprint by more than 50%. 

Head to the Arup article to find out more about this project. 

Find out more about Oasys GSA’s capabilities here. 

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