Passive Homes

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What is a passive home?

The term “passivhaus” comes from Germany where these originated from back in the 90s.  This method of building takes advantage of designs that draw on sunshine, shade and ventilation and they uphold a comfortable temperature without having to use as much energy as a traditional home. This stands for both cold and warm temperatures.

How does a passive home work?

  • High quality insulation
  • Superior Windows
  • No thermal Bridging
  • Airtight construction
  • Mechanical ventilation

Passive homes and its benefits for a more sustainable and comfortable future

  • Lower carbon emissions
  • Warm, snug rooms without any draughts or cold spots in winter, and cooler rooms in summer
  • Cleaner air quality inside
  • Low maintenance costs
  • Peace and quiet when the windows are shut
  • More wall space, as you don’t need any radiators

What are the requirements for a Passive Home?

  • Space heating demand
  • Primary energy demand
  • Airtightness
  • Thermal comfort

How much heating does a passive home need?

Due to the high level of energy efficiency, the heating demand in Passive Houses (typically no higher than 15 kWh/(m²a)) is  only about 10% of the energy used in conventional buildings.

JLM’s involvement with Passive Homes

At JLM we specialize in large-scale sustainable residential schemes, as demonstrated by our involvement in noteworthy projects such as the 216-apartment unit development in Leeds and the construction of 197 passive homes for York Council in partnership with Caddick Construction Ltd.

  • Duncombe square development site (City of York Council)
A site outline of the Duncombe Barracks site
An outline of the Duncombe Barracks site
An alternative plan for the Duncombe Barracks site
An alternative plan for the Duncombe Barracks site

In august 2019, the Duncombe Barracks site was purchased for  this project. The site is 0.66 hectares and located on Burton Stone Lane, a short walk from the city center, in Clifton ward.

Proposal:

Construction of 1 commercial unit and 34 homes:

11 x 1-bed flats with 3 x fully wheelchair adaptable ground floor flats (M4(3) accessibility standard);

23 x terraced houses (2, 3, and 4-bed), all designed to M4(2) accessibility standard.

JLM Services:

Air source heat pumps

Solar PV

Multi-vent heat recovery

All general pluming electrical work

Read more: https://www.york.gov.uk/housing/housing-delivery-programme-1/3

  • Burnholme Green development site (City of York Council)

An alternative plan for the Duncombe Barracks site
An outline of the Burnholme Green development site on a drawn map

A computer generated aerial overview of the site
A computer generated aerial overview of the Burnholme site

The Burnholme Green housing development site is part of a major council regeneration project which has already delivered a new library, community facilities, and care home on the former Burnholme College site in the Heworth Ward.

The aim is to maximize the potential of the site while respecting the local surroundings, to provide high quality homes.

Proposal:

Development of 78 homes and 5 self-build plots

55 x terraced houses (2, 3, and 4-bed)

4 x intergenerational properties consisting of a 3-bed duplex above a self-contained one 1-bed ground floor flat

10 x 1-bed flats

9 x 2-bed bungalows

More than a quarter of the homes are designed to be fully wheelchair adaptable (M4(3) accessibility standard).

JLM services:

Air source heat pumps

Solar PV

Multi-vent heat recovery

All general pluming electrical work

Read more: https://www.york.gov.uk/housing/housing-delivery-programme-1/4

  • Ordnance Lane development site (City of York Council)
Ordnance lane site outline
Ordnance lane site outline
A computer generated aerial view of the Ordnance Lane site
A computer generated view of the Ordnance lane site

The site was designed to create a mixed and inclusive community and be a healthy place to live with sustainable design including certified Passivhaus homes which will be zero carbon in use.

Proposal:

The plan of Construction of  85 new homes, 8 commercial units, and 2 community facilities was submitted in November 2021.. A mix of 1 bedroom flats and 2, 3, 4 and 5 bedroom homes has been proposed in the application.

JLM services:

Air source heat pumps

Solar PV

Multi-vent heat recovery

All general pluming electrical work

Read more: https://www.york.gov.uk/housing/housing-delivery-programme-1/5

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