Resources provided by Hyas

Hyas aim to disseminate knowledge and good practice for the benefit of all trying to bring forward large scale, complex schemes. Below are some key resources and tools available to the wider sector.

Garden City & Large Sites Financial Model

Understanding the viability of development is an important requirement of the planning system.  It is critical to the overall assessment of the deliverability of plans and planning policies. This is particularly important in relation to growth areas and the largest and most strategic sites such as new urban extensions, new communities and garden cities/villages.

The Garden City & Large Sites (GCLS) Model is high level financial model that can enable viability testing of long term, large scale sites (and in particular Garden City proposals) at an early stage in the planning process. It is an open source model capable of being used by relative non-professionals and without the requirement for specialist software. It is designed for use on large scale schemes with a development period of up to forty years.

The GCLS Model has been created primarily to enable early awareness raising on viability implications of strategic options. It can help support an informed dialogue between Local Authorities, scheme promoters and potentially Central Government at an early stage in decision making. A key aspect of the model is that it is ‘open’ in the sense that all parties can see all data and computations.

It provides a free to use and adaptable tool to test and consider options for sharing added value between landowner, developer, funders and community, including timing of payments. It can help partners to explore partnership opportunities and test multiple scenarios through changing key assumptions.

Click here to download a copy of the User Guide which explains the model and it’s functionality. The model is free to access and use,  just contact us and we will send you the latest version.

Planning Performance Agreements

A Planning Performance Agreement, or ‘PPA’, is a framework agreed between a local planning authority and a planning applicant for the management of complex development proposals through the planning process. A PPA allows both the developer and the local planning authority to agree a project plan and programme , key roles & responsibilities and appropriate resources necessary to take a project through the planning system to a defined timescale.

PPAs can help deliver end-to-end planning and improve the quality of decision making. They are a tool through which parties come together to agree how they are going to take a development proposal through the planning process. They can help partners to achieve high-quality sustainable development by providing a mechanism to:

  • agree to a shared vision and set of objectives;
  • commit to a genuinely collaborative approach by all key parties;
  • adopt a spatial planning approach underpinned by positive planning; and
  • establish a robust and sufficiently resourced project management process, including defined tasks, roles & responsibilities and a project timeline.

Hyas have been involved in a number of schemes which have included PPA structures to secure a joint working approach. To guide places that may be thinking about the approach, some guidance notes and a template agreement including potential schedules defining alternatives type of agreement are set out below.

Contact us for our PPA User Notes, PPA Template & Sample Schedules

The ATLAS Guide

The ATLAS Guide was created by the Advisory Team for Large Applications to provide advice and information to all those involved in the evolution and appraisal of proposals for large scale development through the planning process.

Given the Government’s focus on the delivery of housing and sustainable development, the advice was most relevant to large scale residential / mixed use proposals, although much of the information was also applicable to other more commercial or infrastructure projects.

The information was based upon the research of good practice and experience that ATLAS had gained from its project work on major projects. It was first published online as a web based resource in 2007 and was regularly updated online.

The ATLAS Guide addressed two key aspects:

  • An overall step-by-step process to take forward large development projects based upon a series of key stages; and
  • More focussed advice in relation to a number of key topic areas that may need to be addressed to enable projects to come to a successful outcome.

This Guide was flexible enough to be applicable across a variety of different projects, at different stages and with different anticipated outcomes. Stakeholders using the information contained in the GUIDE  therefore needed to focus attention towards those areas of the process that relate to the status of their project, or the issues that they may be facing.

The information was not intended to be prescriptive or final, and will be updated as further ‘good practice’ becomes available.

The ATLAS Guide can be accessed in the National Archives here.

Contact us for help , guidance and direct support  to deploy our tools and resources