UK PASSIVHAUS AWARDS 2013 Ditchingham Parsons + Whittley Architects

Project Overview Name: Ditchingham- 14 Affordable Homes Location: Lower Wells Close, Ditchingham, NR35 2SB Building Type: Mix of 1-bed, 2-bed and 3-bed flats, bungalows, and houses Construction type: Brick/block cavity construction Completed in: August 2012 Occupancy status: Occupied since August 2012 Construction Cost: £1454/sqm

Sustainability features Primary Energy Demand: 108 kWh/m².a Heating and Cooling Load: 9 W/m² Heating & Ventilation strategy: Heating/DHW and ventilation is provided via the Genvex Combi 185 unit which is a combined heat recovery ventilation and domestic hot water heat pump appliance. An air-source heat pump heats the air and 185 litres of domestic hot water, prioritising the hot water. The unit is provided with an Optima 310 Design controller. A post-MVHR duct heater (Total Home Environments PR613) is installed to provide additional heating during extreme periods of cold. Additional heating is provided to bathrooms in the form of a local electric towel rail. Shading strategy: Overhanging eaves / external blinds. The development is set on a challenging site, in a Conservation Area and adjacent to significant Tayler U values W/(m²K): Exterior wall 0.098, Roof 0.080, & Green Grade II listed buildings. The scheme design required an understanding of the Tayler & Green Floor 0.089, Windows 0.65, Doors 0.82 legacy and in particular their innovative approach to rural housing. We believe this scheme demonstrates that: Measured Performance • Passivhaus can be delivered in a traditional UK idiom and can respond to local vernacular, addressing Headline energy results: the ‘European’ prejudice that sometimes emerges. Analysis of actual energy use: • Passivhaus can be delivered in sensitive areas such as Conservation Areas and adjacent to historic assets, tackling the prejudice that the concept is only achievable with contemporary architecture. • Passivhaus can be delivered using traditional UK construction skills, methods and materials. • Passivhaus can be delivered in conjunction with all other UK housing standards such as Code for Sustainable Homes level 4, Lifetime Homes, Secure by Design, Building for Life etc. • The scheme demonstrates simplicity of detailing and construction whilst achieving high performance levels. • Passivhaus is the most effective response to issues of fuel poverty which is particularly relevant in social housing. These charts shows Specific Space Heating as kWh/m2, with a monitoring period of 279 days. Caution! – Projected figures based on straight lineal extrapolation, no adjustment for forthcoming summer (if we ever get one!), therefore actually anticipated to be better than shown. Please note average nature of certification with individual units varying in performance. Air pressure result: n50 = 0.6 ach

Occupant Feedback: early conceptual sketch “I love living in my new home, I couldn’t ask for more. Its very spacious and thanks to the large windows there

fencing key: is lots of natural light. The mechanical ventilation system 1200 high close boarded fence with 600 trellis to provide total 1800 high

1500 high close boarded fence with 300 trellis to provide total 1800 high is very simple to use and now I have set it up to my 1800 high close boarded fence existing hedgerow

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low timber picket fencing 13 th w requirements I can forget about it, whilst it does all the 10 10

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W to encourage slow speeds, ild f lo w with passing place, and e r W a service margins both sides of y road, to engineer's design and feature tree and H to NCC approval o llo public seating w H il l R o a Schedule of accommodation d

1 x 1-bed 2p bungalow 54 sqm 54 2 x 2-bed 4p bungalow 67 sqm 134 1 x 1-bed 2p flat 54 sqm 54 2 x 2-bed 4p flat 67 sqm 134 Agricultural land 3 x 2-bed 4p house (rent) 77 sqm 231 1:2500 Site Location 2 x 2-bed 4p house (s/o) 77 sqm 154 08.10.10 Sewage treatment plant indicated G 1 x 3-bed 5p house (rent) 87 sqm 87 07.10.10 Red line amended, access road/footway revised 1 x 3-bed 5p house (s/o) 87 sqm 87 new footpath fencing added F 1 x 4-bed 6p house 97 sqm 97 connects to village 05.08.10 Red line amended, slab level added E total 1032 sqm centre 23.07.10 Access road and boundary wall amended, red lines added to define site D upgrade existing footpath to adoptable standard 12.07.10 Dwelling areas updated C 10.07.10 Site layout amended B existing field access to connect to bus-stop, to NCC approval Ecological 19.01.10 Plot numbers added, plot 2 shown 4-Bed A date: purpose: rev: ehind line of visibility splay new hedgerow planting b Planting 4 TITLE: Site Layout & Site Location Plans k existing hedgerow to remain PROJECT: Proposed Affordable Housing

2.4 x 59m visibility splay to north-west, 2.4 x 43m visibility splay to south-east (dashed purple) . s ADDRESS: Land off Scudamore Place, Ditchingham, NR35 2QH Hollow Hill Road new road junction 8

(to NCC approval) CLIENT: Hastoe Housing Association 1 : o N 8

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DATE: 08.12.09 SCALE: 1:250, 1:2500 as shown w D 2 1 0 3 0 1:250 Site Layout Plan 2 0 0 0 0 PARSONS + Whittley

1 London Street, Swaffham, Norfolk, PE37 7DD, tel 01760 722000, Fax 01760 725441, email [email protected]

Scale bar - check to ensure printing is to scale site layout Do not scale. Any discrepancies, errors or omissions should be referred to Parsons + Whittley immediately upon discovery typical foundation detail

Team Credits

Client: Hastoe Housing Architect: Parsons+Whittley

Consultants: Davis Langdon Contractor: Keepmoat

Certifier: BRE M&E - ESC Ltd

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UK PASSIVHAUS AWARDS 2013 SOCIAL HOUSING CATEGORY