Passivhaus Affiliate

Passivhaus Site Visit: Bryce Lodge

Date: 12th January 2012 Time: 13:30 - 16:30
Location: Horsham, West Sussex Cost: FREE





This project which has a contract value of £4.75m involves the design and build of 38 homes for affordable rent including 17 houses and 21 flats. This scheme is unique in that 12 of the homes will be built to Passivhaus standards whilst at the same time achieving Code for Sustainable homes Level 4. The remainder of the homes will be built to meet CfSH Level 5.

All 38 homes benefit from Innovaré Structurally Insulated Panel System (i-SIPS) which provides extremely high levels of sustainability and thermal efficiency. The Passivhaus properties have enhanced levels of thermal performance due to the additional use of i-SIPS floor and roof systems. This results in limited cold bridges and reduces energy costs through excellent thermal performance and air tightness. (0.6m3/hr/m2 - Code 4 / Passivhaus).

The use of i-SIPS means we can address the speed of construction. Design was prioritised in line with the design programme and we focused our efforts on the design of the first block of flats to be started and completed. This has provided valuable information which has lead to continuous improvement as the lessons learnt on this first block have then been used on the remainder of houses and flats as the project has progressed.

Osborne has been able to bring its experience from developing environmentally sustainable projects including a number of Code Level 5 schemes to work with Saxon Weald HA in order to rationalise the design. They have been able to highlight the risks involved in achieving Code for Sustainable Homes and Passivhaus and have used this experience to secure savings on the contract, ensuring value for the client.

Project Team:

Client: Saxon Weald

Procurement Route: IESE Framework

Employers Agent - Philip Pank Partnership


Architect: MH Architects

Civil & Structural Engineer: Gemma Building & Design Services

Code & SAP Consultants: Brooks Devlin

Main Contractor: Osborne

Passivhaus Consultants & Certifier: Warm 


Site visit Agenda:

 13:30 Registration and refreshments  

14:00 Site visit

15:00 Introduction and Welcome  

 Paul Ensch and David Standfast CEO, Saxon Weald 

Why Saxon Weald thinks Passivhaus is good for its business

History of the Passivhaus Project on Bryce Lodge

Marie Riordan, New Business Manager, Saxon Weald Homes

Why Passivhaus and the procurement route


What is Passivhaus? and how it works

John Trinick Warm, Consultant, Warm

John will discuss the Passivhaus concept and how this has been applied to Bryce Lodge.


The Design and Construction of Passivhaus

Andy Burns, Contracts Manager, Osborne and Mark Wellbelove, Design Manager, Osborne

Presentations will look at how Osborne addressed a number of key issues including:

  • The Technical and Practical issues of Developing Passivhaus.
  • The Management of the Design Process. 
  • The Management of the Construction Process

Use of SIPS in Passivhaus

Peter Blunt, Director, Innovaré

An Introduction to Innovaré.  Pete will discuss the product and why it is suited to Passivhaus (focusing on airtightness and reduced thermal bridging).  There will also be information as to how Innovaré managed the development of the design and product development throughout the project.  

4:00 Q&A

4:30 Close


Booking information:

Kerry Bennett

T: 01737 743544

M: 07736 597145


Site Location: New Street, Horsham, West Sussex RH13 5EA

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