Pitcairne and Hobart house type C1
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as PDF Pitcairn close is part of a new build development consisting 42 residential dwellings.
Pitcairne and Hobart house type C1 : Project images
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Energy and fuel use
Measured data from renewable generation is not yet available.
Fuel use
| Pre-development | Forecast | Measured | |
| Electricity use | - | 1354 kWh/yr | - |
|---|---|---|---|
| Natural gas use | - | 6169 kWh/yr | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | - | 115 kWh/m².yr | - |
|---|---|---|---|
| Annual CO₂ emissions | - | 23 kg CO₂/m².yr | - |
| Annual space heat demand | - | 40 kWh/m².yr | - |
Renewable energy
| Electricity generation | Forecast | Measured |
|---|---|---|
| Renewables Technology | - | - |
| Other Renewables Tech | - | - |
| Electricity consumed by generation | - | - |
| Primary energy requirement offset by renewable generation | 115 kWh/m².yr | - |
| Annual CO₂ emissions offset by renewable generation | 23 kg CO₂/m².yr | - |
Calculation and targets
| Whole house energy calculation method | PHPP |
|---|---|
| Other whole house calculation method | - |
| Energy target | AECB Silver |
| Other energy targets | - |
| Forecast heating load | 20 W/m² demand |
Airtightness
| Date | Result | |
| Pre-development air permeability test | - | - |
|---|---|---|
| Final air permeability test | 28 July 2015 | 2m³/m².hr @ 50 Pascals |
Project description
| Stage | Occupied |
|---|---|
| Start date | 05 May 2014 |
| Occupation date | 13 April 2015 |
| Location | Nottingham Nottinghamshire England |
| Build type | New build |
| Building sector | Private Residential |
| Property type | Mid Terrace |
| Construction type | Masonry Cavity |
| Other construction type | 100 Facing brick 200 ecobead insulated cavity 100 internal block |
| Party wall construction | Cavity party wall 2 skins 100 dense block with insulated cavity |
| Floor area | 90.86 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |  AECB silver standard certified building |
Project Team
| Organisation | William Davis Limited |
|---|---|
| Project lead person | William Davis Limited |
| Landlord or Client | Blue Print Limited Partnership |
| Architect | Marsh Grochowski Architects |
| Mechanical & electrical consultant | William Davis Limited |
| Energy consultant | Eco Design Consultants Limited |
| Structural engineer | |
| Quantity surveyor | Pulse Associates Ltd |
| Consultant | |
| Contractor | William Davis Limited |
Design strategies
| Planned occupancy | The development has planned occupancy in 2015. The Picairn and Hobart development has 42 units and will be phased occupancies |
|---|---|
| Space heating strategy | Each unit has an individual condensing mains gas boiler to water filled radiators |
| Water heating strategy | Each unit has an instant hot water from the gas boiler |
| Fuel strategy | Mains Gas as primary heat source |
| Renewable energy strategy | No renewable electricity generation. |
| Passive Solar strategy | All units modelled in PHPP for orientation and shading |
| Space cooling strategy | Background ventilation by MVHR purge ventilation by opening windows |
| Daylighting strategy | Kitchen to achieve a daylight factor of 2% Living room and bedroom to achieve a daylight factor of 1.5% |
| Ventilation strategy | Mechanical ventilation with heat recovery - system 4 for background ventilation |
| Airtightness strategy | Ensuring properly detailed junctions and site supervision and on site inspection with signed check list sheet. Airtightness membrane to roof airtight tape joints to structure |
| Strategy for minimising thermal bridges | Specific details at all junctions - with an on site inspection and check list sheet with signatures. |
| Modelling strategy | Passive House Planning Package used to model energy strategy. |
| Insulation strategy | Wall U value = 0.15 W/mK. Roof U value =0.09w/mK. Floor U value = 0.14W/mK |
| Other relevant retrofit strategies | |
| Contextual information |
Building services
| Occupancy | 6 |
|---|---|
| Space heating | Mains gas condensing Combi Boiler |
| Hot water | Domestic hot water by Combi boiler |
| Ventilation | MVhr system 4 ventilation system Itho Advance SAP 87% efficiency |
| Controls | Room thermostats |
| Cooking | Gas |
| Lighting | Compact Fluorescent lighting through out |
| Appliances | Unknown |
| Renewable energy generation system | Non installed |
| Strategy for minimising thermal bridges | Details designed and check on site with in progress site photos and site sign off check list to confirm the work is carried out as designed. |
Building construction
| Storeys | 3 |
|---|---|
| Volume | 250.8m³ |
| Thermal fabric area | 262 m² |
| Roof description | 10 Degree Mono pitch cold roof construction - insulated at ceiling joist level with 450mm mineral wool |
| Roof U-value | 0.89 W/m² K |
| Walls description | Masonry cavity wall brick facing to outer leaf 200mm Eco Bead cavity insulation 100mm Block inner wall - 13mm wet plaster internal finish |
| Walls U-value | 0.15 W/m² K |
| Party walls description | Masonry cavity party wall with thermal closer pieces each end of wall to avoid thermal chimneys to Building Regulation |
| Party walls U-value | - |
| Floor description | Ventilated block and beam floor with 150mm insulationwith 45mm screed topping |
| Floor U-value | 0.14 W/m² K |
| Glazed doors description | Fully Glazed Upvc doors |
| Glazed doors U-value | 1.03 W/m² K installed |
| Opaque doors description | Timber front door with two small double glazed windows |
| Opaque doors U-value | 1.10 W/m² K installed |
| Windows description | Upvc double glazed windows |
| Windows U-value | 0.86 W/m² K - |
| Windows energy transmittance (G-value) | - |
| Windows light transmittance | - |
| Rooflights description | |
| Rooflights light transmittance | - |
| Rooflights U-value | - |