The Barge

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The Barge: circa 1810 solid wall brick cottage, south facing to a walled garden within the City of Ripon, adjacent to the Canal Basin.The cottage was a two storey two up two down and had a 1970's extension to the west which included family bathroom, stairwell and monoridge sitting room. It was in very poor condition with considerable damp, mould growth, draughts and poor thermal value.The property has undergone a deep retrofit taking it back to a carcass of external walls and roof rafters, before restoring it to achieve Passivhaus EnerPhit by components with a target Heating demand of 28kWh/m2a.The accommodation now offers inside/outside space to a south facing walled garden. The light and space is individual to each room offering sunshine and daylight from sunrise to sunset.
Images Graphs Figures Description Strategies Building

The Barge : 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 - - -

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
Other whole house calculation method-
Energy target EnerPHit
Other energy targets-
Forecast heating load -


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

Project description

Start date
Occupation date
Location Ripon North Yorkshire  England
Build typeRefurbishment
Building sectorPrivate Residential
Property typeDetached
Construction type
Other construction typeMixed
Party wall construction
Floor area 125
Floor area calculation method Treated Floor Area (PHPP)
Building certification  Passivhaus certified building Passivhaus certified building

Project Team

Project lead personClaire Jamieson
Landlord or Client
ArchitectClaire Jamieson - PHI Architecture
Mechanical & electrical consultant
Energy consultant
Structural engineerJames Lang-Burns - McGregor Lang
Quantity surveyor
ContractorEco DcJoinery

Design strategies

Planned occupancy
Space heating strategy
Water heating strategy
Fuel strategy
Renewable energy strategy
Passive Solar strategy
Space cooling strategy
Daylighting strategy
Ventilation strategy
Airtightness strategy
Strategy for minimising thermal bridges
Modelling strategy
Insulation strategy
Other relevant retrofit strategies
Contextual information

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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