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Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.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

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Hafod Eryri – The summit of Mount Snowdon

Software Used on this Project

Project Overview

At 3,560ft (1,085m) the café and visitor centre at the summit of Mount Snowdon in North Wales is the highest building in the UK, south of the Scottish highlands.

Its predecessor – a run-down 70 year old building – was once famously labelled by HRH Prince Charles as ‘the highest slum in the world. In its place, the new facility – named Hafod Eryri – has been described as a real credit to those who designed and built it. It will be visited by over half a million people each year.

How Oasys proved invaluable

Extreme Measures

This project is defined by extremes: the granite clad building is designed to cope with savage weather allowing for wind speeds up to 150mph, annual rainfall of more that 5m and temperatures that drop as low as -20°C.

The centre’s remote site location also provided some unique design challenges. Accessible only by rail, helicopter and foot, all material had to be transported up the mountain by the UK’s only rack-and-pinion railway. This meant that the building elements and construction equipment had to be limited in size and weight, requiring flexibility in the designs and collaboration between the individual members of the project team.


Teamwork was crucial for solving logistical issues and successfully delivering the project. Every detail required input from Ray Hole Architects, Arup as engineer, and main contractor Carillion. However, simply maintaining communication proved difficult without any fixed phone lines on the summit.

One of the most challenging design aspects was achieving the complex geometry of the steel frame with its varying wall slopes and curved layout. Arup produced 3D GSA models to understand how the asymmetric structure would work and developed 3D CAD models to get unambiguous data for the steelwork and cladding contractors. Ultimately this produced a better end product.

For the foundations, Arup worked with Carillion to resolve the logistical and quality issues involved in casting hundreds of tonnes of in-situ concrete on the summit of a mountain. The solution was to create bespoke precast concrete troughs designed to connect together on site. The concrete troughs were delivered hollow and filled with rubble from the demolition of the existing building, limiting the amount of waste removed from site and minimising the delivery of materials.

With sheer cliffs on two sides of the site and extreme weather conditions, it was imperative that construction time was minimised. To achieve this, the roof and superstructure were prefabricated as much as possible (considering that everything had to come up the railway) so that large sections could be dropped into place quickly. This effort meant the roof was built in just four days.

The roof also had to deal with unusual problems like being resistant to tent pegs – the previous cafe was plagued by campers puncturing the waterproof membrane when pitching their tents on the roof.

Ray Hole Architects maximised the building’s internal space by ensuring the perimeter columns followed the sloping walls. There is only one vertical column in the entire of the main building.


"A colleague once said that 'building difficult things in difficult places is where Arup excels'. That really struck a chord with me on this project." "Taking the architect's vision and turning it into something structurally sound, that - given the site restraints - would actually be buildable, kept us on our toes."
Geraint Bowen, Arup's Project Manager

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