Two innovative, near zero carbon houses

6275
Last modified by the author on 16/04/2021 - 09:50

New Construction

Building Type : Isolated or semi-detached house
Construction Year : 2021
Delivery year : 2021
Address 1 - street : 21 Pinnocks Lane SG7 6DF BALDOCK, ENGLAND, United Kingdom
Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
Net Floor Area : 155 m² Other
Number of Dwelling : 2 Dwelling

Certifications :

Primary energy need
30 kWhpe/m².year
(Calculation method : Other )

Energy consumption

Economical buildingBuilding

< 50A

51 à 90B

91 à 150C

151 à 230D

231 à 330E

331 à 450F

> 450G

Energy-intensive building

General information

PHPP designed to achieve passivhaus classic certification through applying the Beattie Passive build technology. In addition, carefully selected low energy, recycling and renewables ranging from Envirovent MVHR system, GRAF 2.7m3 rainwater harvesting, Thermoception all-in-one air source water heater for DHW, two Recoup WWHRS are incorporated to achieve a near zero carbon status.

For added comfort and wellbeing regardless of age, disability, or gender, Smart Home Technology for power and led lighting along with doc M compliant wide door access throughout ground floor, automated pocket door to wet room, push button to control thermostatic showers and bath filling, sensor-controlled basin taps, kitchen gardens for home grown organic produce, permeable driveway, paths and patios, and architecturally designed recessed lighting.

Internal fixtures and fittings are of high specification.

External fabric of the buildings such as Internorm triple glazed aluminum clad UPVC doors and windows, automatic solar controlled tripe glazed velux windows, cedral woodgrain effect cladding, colour through thin-coat K-Rend, fibre cement slate effect roof tiles, dry roof ridge and verges, anthracite wood grain effect upvc fascia and soffit have all been chosen for their quality appearance, long life, high performance and low maintenance.

Photo credit

Brad Kelly

Stakeholders

Contractor

Name : Probuild Limited

www.probuildltd.co.uk

Stakeholders

Function : Others

Probuild Ltd

Function : Others

Probuild Homes Ltd

Function : Others

Beatie Passive Ltd

Function : Others

Thermoception Ltd

Energy

Energy consumption

Primary energy need : 30,00 kWhpe/m².year

Calculation method : Other

Breakdown for energy consumption : Primary energy needs corresponds to Passivhaus PER value.Heat demand 13.9 KWh/(m2a)Heat load 10 W/m2Air tightness 0.3 Non Renewable primary energy PE demand 30kWh/m2aPER demand 14 kWh/m2aPrimary energy renewable Generation of renewable energy 4 kWh/(m2a)

Envelope performance

Air Tightness Value : 0,30

Renewables & systems

Systems

Heating system :

Heat pump

Hot water system :

Heat pump

Ventilation system :

Double flow heat exchanger

Two Recoup WWHRS installed to pre heat the supply water to the air source water heater and the shower.

Smart Building

BMS :

smart control (voice, phone and manual) Lighting and power controls throughout. Alexa provides as well as ring doorbells, smart phone app linked car charger, showers and bath fillers via smart/remote and button control. electric income is smart meter.

Users’ opinion on the Smart Building functions :

We have applied smart features which we believe are practical and simple use for end the user

Environment

Urban environment

Set in the historic market town of Baldock located in the district of North Hertfordshire which was founded by the Knights Templar in the 1140s. Baldock boasts an array of period buildings and a popular high street presents along with new modern builds and fantastic access to the A1M North and South bound. The external design therefore took into account the various ages and styles of properties in the area to fit in. The town boasts an excellent array of independent shops, Good Ofsted schools, pubs and restaurants, with the adjoining towns of the first ever Garden City in Letchworth Garden City and Hitchin providing an even wider range of facilities. Baldock is only 33 miles away for London or better still only a 30 minute train ride from Baldock to London’s King’s Cross which makes Baldock a commuters dream of a semi rural setting with great links via transport.

Costs

Construction and exploitation costs

Total cost of the building : 405 000 €

Contest

Reasons for participating in the competition(s)

Probuild Ltd has applied what we believe to be one of the best passivhaus build methods (Beattie Passive) to achieve the fabric first principles. We have then expanded on this to achieve near zero carbon status by incorporating best choice low carbon, low maintenance energy efficient recycling and renewable systems. Use of smart home technology in the home, plus consideration for the external of the home such as building kitchen gardens to encourage home grown produce using irrigation from rainwater harvesting and fertiliser from compost plus permeable surfaces throughout all whilst remaining in keeping within the existing street scene has been challenging but successful.