Slogan: Working together for a more sustainable future

Sustainability House

View of the Sustainability House

As a leading house builder in the East of England and East Midlands – and with considerable involvement in building for social landlords as well as for the private market – we are very aware of the need to improve the environmental performance of new housing.

The government’s Code for Sustainable Homes is driving the house building industry to become ‘greener’ at a time when it is under enormous economic pressure.

Balancing the sometimes competing demands of economy and environment is not easy. Our Sustainability House shows what can realistically be done with current technologies and at what cost. It demonstrates that there are many options for meeting the requirements of the Code for Sustainable Homes and that there is not a ‘one size fits all’ solution.

We hope the Sustainability House also shows the complexities of building a house to meet the requirements of the Code – as well as the over-lapping requirements of Building Regulations and many other legally and commercially necessary standards. Legislation, economic circumstances and the ‘environmental agenda’ mean that this is no longer an industry in which the ‘cowboy’ builder can survive.

At Larkfleet we are looking to the future and building for the future. The Sustainability House is just part of our commitment to building sustainable housing and a sustainable business.

Karl Hick Managing Director

Air Source Heat Pump

Air Source Heat Pump

• Exciting technology which can provide hot water and heating in new homes.
• A great low carbon alternative to traditional boiler which can reduce CO2 by 50%.
• No groundworks needed – quick to install with the minimum of disruption.
• Suitable for underfloor heating or radiators.
• Once installed, can reduce running costs and emissions by substantial amounts.
• Converts the outside air temperature and energy into heat.
• Generally used to complement more traditional heating systems, and typically delivers up to 80% of the space heating and hot water requirements for a building.
• They can reduce your energy consumption for heating by up to 50%.
• They are very energy efficient – producing up to 4 times more heat energy than the electricity required to operate the pump.
• They are much cheaper and less disruptive to install than Ground Source Heat Pumps.

Rainwater Harvesting

Rainwater Harvesting

• Rainwater Harvesting has the potential to save large volumes of mains water and reduce pressure on resources.
• Water that would otherwise be lost can be used instead to flush toilets, water gardens and feed washing machines.
• Rainwater Harvesting can ideally be used on large surfaces such as roofs.
• An average driveway can provide up to 100,000 litres of water per year.
• The collected water can be used to supply lavatories, household appliances or outside taps, but is not suitable for drinking.

Solar Panels and Photovoltaics

Solar Panels and Photovoltaics

• State-of-the-art technology which uses the sun to generate electricity.
• Uses special photovoltaic panel (PV) to generate power for appliances and lighting.
• No wastage and no emissions.
• PV systems only require daylight – no direct sunlight – to work.
• PV systems convert solar radiation into electricity.
• The simplest systems provide electricity to a building directly, but they can also be used with batteries to store energy or be connected to the main grid.
• Grants are available to cover up to 50% of installation costs – dramatically reducing the pay-back period.
• An inventer (usually situated in the loft) converts the DC current into usable AC current that can then be used to provide power.

Wind Turbines

Wind Turbine

• Wind turbines harness the power of the wind and use it to generate electricity.
• Wind turbines use large blades to catch the wind. When the wind blows the blades are forced round, driving a turbine which generates electricity. The stronger the wind, the more electricity produced.
• If the turbine is not connected to the electricity grid then unused electricity can be stored in a battery for use when there is no wind.
• Cuts your carbon footprint: wind electricity is green, renewable energy and doesn't release any harmful carbon dioxide or other pollutants.
• Cut your electricity bills: wind is free, so once you've paid for the initial installation your electricity costs will be reduced.
• A well sited 2.5kW turbine could save around £380 a year off electricity bills when some generation is exported, and a saving of around 2.6tonnes of carbon dioxide per year.

Timber-frame Structure

Timber Frame Structure

• This house has been designed and constructed by Kestrel Timber Frame Ltd, the building envelope is made from PEFC timber sheathed in OSB (Orientated Strand Board) and covered with Protect TF200 Thermo breather membrane. The design utilises an engineered joist system for the 1st floor with a chipboard deck. The roof structure are trussed rafters.
• Constructing homes with timber frames, rather than brick or concrete, can help to reduce the carbon used in building a house. Timber frames can also cut the energy used in heating the home because they provide a high level of insulation.
• Cost-effective timber frames can be produced to meet Code 5 requirements.
• Timber framed houses are becoming increasingly popular. Building using timber frames is not only more environmentally friendly than using more traditional methods it also allows houses to be built more quickly at very high standards of quality.

Lifetime Homes

Lifetime Homes

• The Lifetime Homes Standards are a series of sixteen standards intended to make homes more easily adaptable for lifetime use.
• Lifetime Homes make life as easy as possible for as long as possible because they are thoughtfully designed. They provide accessible and adaptable accommodation for everyone, from young families to older people and individuals with a temporary or permanent physical impairment.
• Many planning policies already require the Lifetime Homes standard in new developments.
• All public sector funded housing in England will be built to the Lifetime Homes standard from 2011 (it is a requirement now in Wales and Northern Ireland), with a target of 2013 for all private sector dwellings.

Smart Metering

Smart Metering

• Smart Meters potentially offer reliable and accurate billing based on actual meter reads, which are collected remotely and removes the need for someone to read your meter manually.
• Unlike traditional meters, Smart Meters are read remotely. This means you won’t need to answer the door to meter readers, fill in a card or even provide readings online.
• By automating the whole process you are only billed for the energy used – giving you more control and potentially saving you money. There will be fewer inaccurate estimated bills and meter reading mistakes.
• More accurate readings also means that you’ll get better information about the energy you’ve used. Using these figures to change the way we use energy is another way we could help fight climate change. Along with our Consumption Tracker* service and Go Green product, we can really help you do your bit for the environment.

Mechanical Ventilation Unit

Mechanical Ventilation Unit

• A Heat Recovery System is designed to completely change all the air in the property at least once every 2 hours, continually replacing the stale damp air with fresh, warmed, clean, filtered air.
• It does this by recoverying 70–90% of the heat normally lost through trickle vents and other break out points in the building structure.
• By negating the need for trickle ventilators in the windows noise pollution and heat loss is greatly reduced. The warmed fresh air is then ducted to all the habitable rooms within the property.
• The Heat Recovery System can complement any new or existing heating system by providing significant health benefits as well as cost savings as a result of lower energy use.

Energy Efficient Boiler

Energy Efficient Boiler

• High-efficiency or Condensing boilers use less gas to produce the same amount of heat as standard boilers.
• Easy-to-install, they will fit with your existing radiator or underfloor heating.
• Efficiency can be improved even further with Digital Heating Controls by matching the temperature more closely to your needs – reducing waste.
• Replacing a boiler that is over 10 years old with a High-Efficiency Boiler could save you up to £250 a year on your gas bill.

Water Saving Products

Water Saving Products

• Click Technology gives you easy control over how much water you want to use. The user lifts the lever until they feel a slight resistance. This indicates the fitting is using 50% of its flow. Applying the greater pressure results in a click giving 100% flow.
• A Mixer Tap Restrictor is designed to give a maximum of 6 litres of water per minute up to a pressure of 3 bar.
• Self Closing Taps can be set to run for a pre-determined amount of time – typically 10 to 15 seconds.
• It is not always necessary to perform a full flush every time you go to the toilet so all Ideal Standard and Armitage Shanks push button close coupled WC’s have Dual Flush cisterns as standard. These cisterns have two buttons – a small button delivers 4 litres for a short flush and a large button which delivers 6 litres for a long flush. This saves over 25% of water compared to a 6 litre cistern.
• Flushing with a smaller cistern is one of the effective ways of saving water.
• By installing a 6 litre WC and cistern you can save anything from 20%–50% of water per year.
• An average 1700 x 700mm bath will hold between 175 and 210 litres of water to the overflow. The Alto Water Saving Bath only needs 149 litres of water to the overflow. That saves 15%–28% of water.