Low Energy Buildings Database

L&Q Group, Haringey

This project seeks to create a cost effective and comprehensive solution that can be applied throughout the UK social housing stock. Full insulation will be provided to the existing house to ensure airtightness and to minimise heat loss and thermal bridging. We have developed an innovative passive solar thermal system using Phase Change Material to provide the domestic hot water and space heating energy demands. The proposed solution is innovative and holistic in its approach while remaining cost effective, allowing great potential for replicating throughout the market. With an approximate CO2 emission reduction of 90% and energy demand reduction of 85%, this project will serve as an exemplar in the UK social housing sector.

Construction type	Solid Brick	Project type	Refurbishment
Property type	Mid Terrace	Sector	Public Residential
Location	Haringey London	Project owner	Green Structures Limited
Retrofit for the future	ZA524Z

L&Q Group, Wembley

This project seeks to create a cost effective and comprehensive solution that can be applied throughout the UK social housing stock. Full insulation will be provided to the existing house to ensure airtightness and to minimise heat loss and thermal bridging. We have developed an innovative passive solar thermal system using Phase Change Material to provide the domestic hot water and space heating energy demands. The proposed solution is innovative and holistic in its approach while remaining cost-effective, allowing great potential for replicating throughout the market. With an approximate CO2 emission reduction of 90% and energy demand reduction of 85%, this project will serve as an exemplar in the UK social housing sector.

Construction type	Solid Brick	Project type	Refurbishment
Property type	Mid Terrace	Sector	Public Residential
Location	Wembley London	Project owner	Green Structures Limited
Retrofit for the future	ZA217T

LB Greenwich - How low can we go?

Our project has sought to produce a retrofit solution which is practical to build, easy to run and maintain, is cost effective and highly replicable to other similar properties. Achieving these aims will help enable social landlords like LB Greenwich, to roll out the solution across large numbers of existing dwellings. Our solution is based on applying Passivhaus standards of insulation and airtightness to the building envelope, with additional measures to further reduce energy demand, therefore limiting additional bolt-on technologies to provide that reduced energy demand. The 2bed extension required by LBG gives opportunities for improving performance and a model for other landlords with overcrowding of existing housing stock.

Construction type	Solid Brick	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	Charlton, London London	Project owner	Greenwich Council
Retrofit for the future	ZA137W

LHA Total Retrofit Solution - Retrofitting 2 seperate properties

A whole house retrofit solution intended to be carried out on 1 terrace and 1 semi detached property without decanting tenants in order to enable this to be rolled out across social housing stock. The project aims to reduce energy by high levels of insulation and air tightness. Floors will be improved by an innovative method of external perimeter insulation. PV panels will be used to provide electricity for MVHR. Particular focus will be on the effects of occupant behaviour and control systems, via innovative monitoring equipment, which will also assist with engaging the community through schools and training. The control system incorporates iTRVs and an Energy Lock which can save up to 60% of energy. Warsop - 1974 Elec 1971 Gas

Construction type	Masonry Cavity	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	Warsop and Meden Vale, Mansfield Nottinghamshire	Project owner	Leicester Housing Association Ltd
Retrofit for the future	ZA389F

Low Carbon Refurbishment

This is a four-property terrace built in 1948 to commemorate a member of a local family who fought and died in the Second World War. Our approach to energy saving and CO2 reduction is to follow a lean-clean-green hierarchy: seeking to minimise heat losses from the property thermal fabric and ventilation method; to supply residual space and water heating using replicable, low carbon technology; to minimise lighting and appliance energy loads; and finally to consider micro-generation using proven, renewable energy systems.

Construction type	Solid Brick	Project type	Refurbishment
Property type	-	Sector	Public Residential
Location	Attleborough Norfolk	Project owner	Hastoe Housing Association Ltd.
Retrofit for the future	ZA233U

Low Carbon Sheppey

The project involves 2 houses in Queenborough and Rushenden on the Isle of Sheppey in Kent, one a mid terrace 1974 built infill property, the other a post war semi detached house. The aim is to introduce technologies that are currently estimated to reduce energy demands and carbon emissions by well over 80% in each case. The technologies used for this vary by household. One will have extensive insulation, micro CHP, PV and solar thermal panels, the other will be the same but will use a biomass pellet stove instead of the CHP. We are overcoming the additional challenge of one of the properties already having tenants, and have found various solutions to work around that issue.

Construction type	Masonry Cavity	Project type	Refurbishment
Property type	Mid Terrace	Sector	Public Residential
Location	Queenborough and Rushenden Kent	Project owner	BBP Regeneration
Retrofit for the future	ZA571W

Low Energy Home - Hay Tor

Energy upgrade of 1950's concrete bungalow. We were trying to achieve the best available insulation (u-values) in all areas and good airtightness within budget restrictions. We are very pleased with the result just over a year after the start of the Retrofit, which makes the home much more comfortable.

Construction type	Concrete frame	Project type	Refurbishment
Property type	Detached	Sector	Private Residential
Location	Shrewsbury Shropshire	Project owner	Best Carpenters

Metropolitan Housing Trust London - Hawthorn Road

A Passivhaus-inspired refurbishment of an Edwardian, solid brick, mid-terrace property in the London Borough of Haringey. With a focus on super-insulation, airtightness and mechanical ventilation with heat recovery, this project aimed for maximum levels of building thermal and energy efficiency. The heating and hot water solutions were designed to remove the need for a conventional wet heating system. The project also focused on a solution which works best for residents, utilising simple controls, straightforward systems and strong levels of resident engagement.

Construction type	Solid Brick	Project type	Refurbishment
Property type	Mid Terrace	Sector	Public Residential
Location	London Borough of Haringey London	Project owner	Metropolitan Housing Trust Limited

NEW FROM OLD

The project aims to renovate a dwelling using the whole house approach to reduce energy demand, carbon emissions and primary energy while improving the living conditions and fuel cost for tenants/occupiers. Measures proposed will tackle energy demands, efficient building systems, renewables and occupant interaction. All of these factors can affect the energy consumption and resulting carbon emissions and therefore we propose to undertake a range of measures that tackle these contributing factors.We believe this project can act as a template for similar owned properties in the local area but also across other landlords and private dwellings in the UK. The options proposed consider what is applicable, feasible and will make substantial red...

Construction type	Masonry Cavity	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	Edinburgh Lothian	Project owner	Castle Rock Edinvar Housing Association
Retrofit for the future	ZA218B

One Planet Sutton Retrofit

The project aim is to design a specification to retrofit three typical local authority owned houses and to model the associated carbon savings from a range of opportunities from material choice and operational efficiency to the carbon impacts of tenants' lifestyles. The whole house carbon reduction measures proposed for a "One Planet House" have been selected following an analysis of costs, practicality and embodied carbon to achieve a total fabric heat loss to meet a post retrofit target of 16.9kgCO2/m2. The One Planet House will be compared with a Decent Homes plus CERT funded refurbishment and with those from an unimproved home. The savings due to changes in occupant behaviour will also be monitored in all three houses.

Construction type	Masonry Cavity	Project type	Refurbishment
Property type	Mid Terrace	Sector	Public Residential
Location	Carshalton Surrey	Project owner	BioRegional Consulting Ltd
Retrofit for the future	ZA122S