Bromley Passivhaus

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A detached self-build 5 bedroom home
Images Graphs Figures Description Strategies Building

Bromley Passivhaus : Project images

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CO2 emissionsPrimary energy requirement
Energy target

Energy and fuel use

Fuel use by type
Primary energy requirement
CO2 emissions

Measured data from renewable generation is not yet available.

Fuel use

Electricity use - - -
Natural gas use- - -
Oil use- - -
LPG use- - -
Wood use- - -
Other Fuel - - -
Primary energy requirement - - -
Annual CO₂ emissions - - -
Annual space heat demand - 16 kWh/m².yr -

Renewable energy

Electricity generationForecastMeasured
Renewables Technology--
Other Renewables Tech--
Electricity consumed by generation --
Primary energy requirement
offset by renewable generation
Annual CO₂ emissions
offset by renewable generation

Calculation and targets

Whole house energy calculation method PHPP
Other whole house calculation method-
Energy target PassivHaus
Other energy targets-
Forecast heating load 9 W/m² demand


Pre-development air permeability test--
Final air permeability test--

Project description

Start date
Occupation date
Location Bromley London  England
Build typeNew build
Building sectorPrivate Residential
Property typeDetached
Construction type
Other construction type
Party wall construction
Floor area 208.4
Floor area calculation method Treated Floor Area (PHPP)
Building certification  Passivhaus certified building Passivhaus certified building

Project Team

Project lead person
Landlord or ClientPrivate
ArchitectConstructive Individuals (London) Ltd
Mechanical & electrical consultant
Energy consultantWilliams Energy Design
Structural engineer
Quantity surveyor
ContractorTouchwood Homes

Design strategies

Planned occupancy
Space heating strategyGas boiler supplying hot water to ventilation post heater.
Water heating strategyGas boiler supplying hot water domestic hot water tank.
Fuel strategy
Renewable energy strategy
Passive Solar strategy
Space cooling strategy
Daylighting strategy
Ventilation strategyPaul , Novus 300Standard flow rate, 156 m3/hIntake duct length, 1.0 mExhaust duct length, 2.0 mIntake and exhaust insulation, 25mm [0.035 W/(mK)]eff. specif. HRE: 90.0%
Airtightness strategy n50 = 0,21/h
Strategy for minimising thermal bridges
Modelling strategy
Insulation strategy
Other relevant retrofit strategies
Contextual informationGood ratio of surface area to TFA for detached house, 2.74, and good airtightness of 0.21 ACH @ 50 Pa allowed retrospective certification against peak heating load.

Building services

Space heating
Hot water
Renewable energy generation system
Strategy for minimising thermal bridges

Building construction

Volume -
Thermal fabric area -
Roof description
Roof U-value -
Walls description
Walls U-value -
Party walls description
Party walls U-value -
Floor description
Floor U-value -
Glazed doors description
Glazed doors U-value - -
Opaque doors description
Opaque doors U-value - -
Windows description
Windows U-value - -
Windows energy transmittance (G-value) -
Windows light transmittance -
Rooflights description
Rooflights light transmittance -
Rooflights U-value -

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