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Admirals Hard
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Energy target
EnerPHit

Admirals Hard

FINALIST of the UK Passivhaus Awards 2015 - Situated on the Stonehouse peninsula, by the banks of the River Tamar, Number 3 Admirals Hard was built in the 1950s and comprises a shop on the ground floor and WARMs office, originally a flat, on the first floor. The first floor is EnerPHit certified. The extensive retrofit works included external wall insulation, cavity wall fill, floor insulation (between the office and the shop), roof insulation at rafter level, high levels of air tightness and high-performance triple-glazed windows, as well as a self-balancing MVHR system.
Construction typeMasonry CavityProject typeRefurbishment
Property typeDetached SectorCommercial
LocationPlymouth DevonProject ownerWARM: Low Energy Building Practice
Passivhaus certified building

Admirals Hard

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Pre-dev ForecastMeasured
CO₂ emissions - - -
Primary energy requirement - - -
Annual space heat demand - - -
  • Whole house calculation method : PHPP
  • Floor area : 80.9
  • Airtightness : -

Planned occupancy : -

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Barmouth Road
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CO2 emissionsPrimary energy requirement

Energy target
EnerPHit

Barmouth Road

Barmouth Road in Wandsworth, London is a Victorian terraced house retrofitted to the EnerPHit standard. To meet strict planning requirements the building was insulated internally and triple glazed sash look-alike casement windows were installed to retain the original appearance of the facade.
Construction typeSolid BrickProject typeRefurbishment
Property typeMid Terrace SectorPrivate Residential
LocationWandsworth LondonProject ownerGreen Tomato Energy
Passivhaus certified building

Barmouth Road

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Pre-dev ForecastMeasured
CO₂ emissions - 20 kg CO₂/m².yr -
Primary energy requirement - 114 kWh/m².yr -
Annual space heat demand - 23 kWh/m².yr -
  • Whole house calculation method : PHPP
  • Floor area : 139
  • Airtightness : 0.87 m³/m².hr @ 50 Pascals

Planned occupancy : 3 persons

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Bristol Retrofit
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CO2 emissionsPrimary energy requirement

Energy target
EnerPHit

Bristol Retrofit

A full thermal retrofit of a mid-century, three-storey property built into a hill and located within a Conservation Area in Bristol. The project included an extension, designed and built to a very energy efficient specification. The extension was needed, both to accommodate home-based business facilities, and to improve access to the lower floor, which is now the kitchen/dining area. A key challenge for this project was to address the amount of thermal bridges created by the excess amount of concrete used during the period of the original construction. Concrete gutters and a balcony have been removed. External wall insulation has been used throughout (U
Construction typeMasonry CavityProject typeRefurbishment
Property typeDetached SectorPrivate Residential
LocationBristol BristolProject ownerFour Walls

Bristol Retrofit

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Pre-dev ForecastMeasured
CO₂ emissions 40 kg CO₂/m².yr 21 kg CO₂/m².yr 14 kg CO₂/m².yr
Primary energy requirement 224 kWh/m².yr 99 kWh/m².yr 75 kWh/m².yr
Annual space heat demand 140.3 kWh/m².yr 16.93 kWh/m².yr 14.2 kWh/m².yr
  • Whole house calculation method : SAP
  • Floor area : 188
  • Airtightness : 1.4 m³/m².hr @ 50 Pascals

Planned occupancy : Two people and a dog. Occasional guests. Both occupants work full time from home.

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Cre8 Barn
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Energy target
EnerPHit
Featured Project

Cre8 Barn

WINNER of the UK Passivhaus Awards 2015 - The Cre8 Barn project is an innovative barn conversion to EnerPHit standard, which has transformed a derelict cow byre into an education centre for Yorkshire Wildlife Trusts Stirley Community Farm. The project features a box within a box structure (inner timber frame building within outer masonry barn) which preserves the outer appearance of the barn, while offering high levels of airtightness and continuity of insulation. The timber frame construction not only ensures thermal performance, but also helps provide structural stability to the outer masonry walls.
Construction typeOtherProject typeRefurbishment
Property typeDetached SectorPublic
LocationHuddersfield West YorkshireProject ownerGreen Building Store Design & Build
Passivhaus certified building

Cre8 Barn

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Pre-dev ForecastMeasured
CO₂ emissions - - -
Primary energy requirement - - -
Annual space heat demand - 33 kWh/m².yr -
  • Whole house calculation method : PHPP
  • Floor area : 98
  • Airtightness : 0.35 m³/m².hr @ 50 Pascals

Planned occupancy : -

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Elliott Drive (EnerPHit)
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CO2 emissionsPrimary energy requirement

Energy target
EnerPHit

Elliott Drive (EnerPHit)

58 Elliott Drive in Wellesbourne is the second certified EnerPHit project in the UK. Built in the 1940s, this semi-detached dwelling, owned by Orbit Heart of England Housing Association is one of a number of speedily built properties that were built to tackle the post war demand for new housing and whose construction is well known for poor thermal performance and associated problems with high heating bills and condensation. Fuel bills for a house of this type would typically cost around 1,100 a year (if mains gas is available), while the transformed building should now cost just a couple of hundred to run.The building has been upgraded with a 200mm layer of high performing insulation throughout. The existing solid floor slab was excavated to make space for insulation in the ground floor. Internal load bearing walls were removed and rebuilt with a thermal break inserted. uPVC triple glazed windows were positioned in the external wall insulation layer and supported on timber bearers.
Construction typeOtherProject typeRefurbishment
Property typeSemi-Detached SectorPublic Residential
LocationWellesbourne WarwickshireProject ownerOrbit Heart of England Housing Association
Passivhaus certified building

Elliott Drive (EnerPHit)

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Pre-dev ForecastMeasured
CO₂ emissions - 28 kg CO₂/m².yr -
Primary energy requirement - 118 kWh/m².yr -
Annual space heat demand - 23 kWh/m².yr -
  • Whole house calculation method : PHPP
  • Floor area : 65.4
  • Airtightness : 0.53 m³/m².hr @ 50 Pascals

Planned occupancy : -

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Erneley Close
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Energy target
EnerPHit

Erneley Close

R-Gen was commissioned by the client One Manchester to reinvent two dilapidated concreteframe maisonette blocks into low energy modern accommodation, which would act as a catalystfor wider social and physical regeneration of the immediate vicinity. EnerPHit, being a fabric firstapproach, was preferred as a mechanism for guaranteeing the reduction in the energy demandof both buildings whilst allowing the design team to be creative in producing a new architecturallanguage for the appearance of the building blocks.Removal of both cavity walls, the existing pitched roof, adjacent garages, communal entranceprojection, as well as stripping out the individual gas supply to each unit, allowed thedevelopment team to be ambitious in its vision for reinventing the estate.
Construction typeConcrete frameProject typeRefurbishment
Property typeMid Terrace SectorPublic Residential
LocationManchester LancashireProject owner-
Passivhaus certified building

Erneley Close

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Pre-dev ForecastMeasured
CO₂ emissions - - -
Primary energy requirement - - -
Annual space heat demand - - -
  • Whole house calculation method : -
  • Floor area : 1228
  • Airtightness : -

Planned occupancy : -

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Grove Cottage
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CO2 emissionsPrimary energy requirement

Energy target
EnerPHit
Featured Project

Grove Cottage

Extension & Refurbishment of Victorian Townhouse using Passivhaus methodology and CarbonLite guidance. Certified to the Passivhaus Institute's new EnerPHit (refurbishment) Standard. [NEW:Passivhaus Trust awards shortlisted project - presentation available on these pages].PHPP certification is based on 20 C, rather than the 21 C the house was heated to during 2010/11. Forecasts are based on a 'typical year' rather than the 'actual' year being monitored. Measured data here is from 2005/06 (before) and 2009/10 (after). Measured room temperatures show an average of 21 degrees centigrade during the heating season. Please note the final air leakage as certified under EnerPHit was an N50 of 1.0 ACH. When adjusted for 2010 average monthly temps.& an internal temp. of 21 C, PHPP predicted a space heat demand of 36kWh/m2.a whereas 35kWh/m2.a was measured.
Construction typeSolid BrickProject typeRefurbishment
Property typeSemi-Detached SectorPrivate Residential
LocationHereford HerefordshireProject ownerSimmonds.Mills Architects
Passivhaus certified building

Grove Cottage

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Pre-dev ForecastMeasured
CO₂ emissions 55 kg CO₂/m².yr 22 kg CO₂/m².yr 25 kg CO₂/m².yr
Primary energy requirement 284 kWh/m².yr 108 kWh/m².yr 120 kWh/m².yr
Annual space heat demand - 25 kWh/m².yr 35 kWh/m².yr
  • Whole house calculation method : PHPP
  • Floor area : 135
  • Airtightness : 0.88 m³/m².hr @ 50 Pascals

Planned occupancy : 2 adults and 3 children.

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Passmore Street
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Energy target
EnerPHit

Passmore Street

FINALIST of the UK Passivhaus Awards 2015 - 11/19 Passmore St are two-bed small historic terraced houses in the heart of Belgravia that are the first privately rented EnerPHit buildings in London. The houses were pilot projects completed by Grosvenor Britain & Ireland.
Construction type-Project typeRefurbishment
Property typeMid Terrace SectorPrivate Residential
LocationLondon LondonProject ownerSturgis Carbon Profiling
Passivhaus certified building

Passmore Street

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Pre-dev ForecastMeasured
CO₂ emissions - - -
Primary energy requirement - - -
Annual space heat demand - - -
  • Whole house calculation method : -
  • Floor area : 67.1
  • Airtightness : -

Planned occupancy : -

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Rectory Cottage
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Energy target
EnerPHit

Rectory Cottage

Rectory Cottage is an EnerPhit-certified retrofit stone cottage. Energy performance measures include excavating the original floor to insert insulation (the builders were ex-miners), external wall insulation, triple glazed windows and doors, and a ventilation and heat recovery system. An LPG system boiler and solar thermal panels with integrated controllers were installed. To add to the PHPP challenges the building is in a National Park and a conservation area, and also accommodates the occasional bat....externally. The renovations were designed by a PHPP consultant and experienced architect and the work was carried out by a novice builder and client. Gas meters have been installed which, together with temperature and humidity sensors, will be used to determine the building performance.
Construction typeStoneProject typeRefurbishment
Property typeDetached SectorPrivate Residential
LocationLlangattock PowysProject owner-
Passivhaus certified building

Rectory Cottage

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Pre-dev ForecastMeasured
CO₂ emissions - - -
Primary energy requirement - - -
Annual space heat demand - 25 kWh/m².yr -
  • Whole house calculation method : PHPP
  • Floor area : 141
  • Airtightness : 0.62 m³/m².hr @ 50 Pascals

Planned occupancy : -

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Redlands
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Redlands

Deep retrofit of 1955 brick house in Devon based on EnerPHit standard. House had old gas boiler, double glazing, cavity wall insulation and c. 100mm mineral wool loft insulation.
Construction typeMasonry CavityProject typeRefurbishment
Property typeDetached SectorPrivate Residential
LocationCrediton DevonProject owner-

Redlands

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Pre-dev ForecastMeasured
CO₂ emissions 44 kg CO₂/m².yr 19 kg CO₂/m².yr 17 kg CO₂/m².yr
Primary energy requirement 227 kWh/m².yr 106 kWh/m².yr 101 kWh/m².yr
Annual space heat demand 140 kWh/m².yr 31 kWh/m².yr 25 kWh/m².yr
  • Whole house calculation method : PHPP
  • Floor area : 150
  • Airtightness : 4.5 m³/m².hr @ 50 Pascals

Planned occupancy : Two people plus; mixed work schedule