Low Energy Buildings Database

2050 Now! Achieving the standards for 2050, and the potential role for innovative heating solutions in thermally improved homes

The project will be improving four homes to different levels and exploring the performance of new heating solutions to achieve the optimum balance of energy performance vs. heating input for these different technologies. The three main innovative heating technologies in this project are Baxi's Ecogen domestic CHP (dCHP), Baxi's Ambiflo ASHP and Nuaire's Sunwarm (combined positive input ventilation, solar thermal heating and solar hot water). The dCHP units will be installed in relatively worse performing households and the ASHP units in well insulated houses to understand the level of performance needed from homes to create the right environment for these technologies to achieve significant carbon savings.

Construction type	Masonry Cavity	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	Newark Nottinghamshire	Project owner	Nottingham Community Housing Association
Retrofit for the future	ZA556B

A2 Dominion- Northholt,

This typical semi-detatched property has poor orientation for exploiting solar gain and the residents will remain in their home during the works, making this a particularly hard to treat property. The rewards however are great, with approx 5.9 million semi detatched properties in England which could be treated similarly. We aim to deliver a highly cost effective and replicable solution, using innovative solutions such as the solar shed , blown underfloor insulation, cork external insulation and bio-foam loft insulation in a holistic design approach. The proposals have been detailed and specified with a strong emphasis on UK based expertise and technologies.

Construction type	Masonry Cavity	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	London Borough of Ealing London	Project owner	Breyer Group PLC
Retrofit for the future	ZA569T

A2Dominion- North Harrow

Retrofit of 2 x Semi detached houses via external insulation allowing tenant to remain in residence during construction

Construction type	Solid Brick	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	Harrow London	Project owner	Breyer Group PLC
Retrofit for the future	ZA568E

Addressing Energy Consumption and Climate Change Adaptation in non-South facing, post-Decent Homes properties.

The project property is an east-west facing, brick cavity construction, mid terrace house built in 1992. This type and era of dwelling correspond to approximately 100,000 similar social properties in England alone. We have developed a holistic strategy that will reduce the CO2 emissions of our proposed property by 80% whilst addressing how existing homes can adapt to climate change in the future. Our proposal is a combination of existing technologies used along side new innovative solutions to form a comprehensive strategy to reduce heating, hot water and electricity use. The underlying strategy is replicable across all terraced housing.

Construction type	Masonry Cavity	Project type	Refurbishment
Property type	Mid Terrace	Sector	Public Residential
Location	London London	Project owner	East Thames Housing Association
Retrofit for the future	ZA347W

Almshouses, Cambridge

This project will focus on a mid-terrace, 1-bed almshouse property in Cambridge. 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	Semi-Detached	Sector	Public Residential
Location	Cambridge Cambridgeshire	Project owner	Cambridge Housing Society
Retrofit for the future	ZA445E

Barbrook PassivHaus Retrofit

Retrofit 2 semi-detached properties to PassivHaus standard.

Construction type	Other	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	Barbrook Devon	Project owner	Energy Action Devon
Retrofit for the future	ZA246T

BISF Steel Frame House - 80% Carbon Dioxide emmision reduction through whole house upgrade approach including innovative technologies

Existing: Steel frame with render and steel cladding; Blockwork and timber frame side extension; Steel shingle roof. Proposed: Existing render and steel cladding removed; New sheathing board, insulation & render cladding; Wall, roof & floor insulation to side extension; Main roof insulation increased to 350mm; Triple glazed uPVC windows; High efficiency gas boiler serving radiators; Flue gas heat recovery; LED lights with 50k hours guaranteed max light output; Decentralised whole house ventilation; 2.7kWp PV and 3.0m2 solar thermal panels; AA++ appliances; Smart metering with display; Shower water heat recovery; Reduced water consumption

Construction type	Steel frame	Project type	Refurbishment
Property type	Semi-Detached	Sector	Public Residential
Location	Cambridge Cambridgeshire	Project owner	Cambridge City Council
Retrofit for the future	ZA145M

Bringing Wates homes into the Future

Wates property structural and low energy refurbishment based on an optimised structural insulated render consisting of a steel cage filled with insulation (Structherm). The void created allows for plumbing and ventilation ducting to provide heat recovery air heating and vent control throughout the house from a heat exchange unit located in the roof space. Other features include air source heat pump supplemented by solar and PV cells, triple glazed windows and doors with reveal detail to improve sealing and solar gain, weather compensating energy controls and a broadband based monitoring system to enable point of use metering information. A porch to reduce energy loss from front door and veranda at the rear for washing to reduce energy...

Construction type	Concrete frame	Project type	Refurbishment
Property type	End Terrace	Sector	Public Residential
Location	Birmingham West Midlands	Project owner	G F Tomlinson Group Limited
Retrofit for the future	ZA493T

City West Homes - Low Carbon Retrofit in the Queens Park Estate Conservation Area

This project will focus on a mid-terrace, 2-bed property in the heart of the Queens Park Conservation Area. This project will build on that experience, learning from both its obstacles and successes whilst seeking to apply those lessons within the more challenging context of a 59m2 Conservation Area property. Our approach to energy saving and CO2 reduction will 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 energy loads; and finally to consider micro-generation using proven, renewable energy systems.

Construction type	Solid Brick	Project type	Refurbishment
Property type	Mid Terrace	Sector	Public Residential
Location	Queens Park London	Project owner	City West Homes Ltd
Retrofit for the future	ZA593S

Clapham Townhouse Retrofit

A complete refurbishment and retrofit of a Victorian cottage. This end of terrace house was extended and retrofitted to provide an exemplar development in energy efficiency and a test bed for various types of renewable technologies. Key to the sucess was a strategy of creating a thermally efficient and air tight building, coupled with an MVHR system to control ventilation and internal humidity.

Construction type	Solid Brick	Project type	Mixed
Property type	End Terrace	Sector	Private Residential
Location	London London	Project owner	Granit