Pappert, Bonhill

Pappert is a development of 26 homes for social rent in the Bonhill area of West Dunbartonshire.

Formerly occupied by tenement flats, the 1.36ha brownfield site lay dormant for a significant period, becoming an area of dense vegetation and cut off from the well-established surrounding community except for a network of footpaths that connected to the surrounding terraces.

The biggest challenge to the design and construction of the development was the topography, with a 20m level difference falling from east to west.

This challenge was also recognised as an opportunity, with the ability to provide excellent views of the neighbouring hills. Several of the existing pedestrian routes were also retained, and new connections formed to ensure wider community integration.

Through direct appointment to the contract by West Dunbartonshire Council, CCG, alongside MAST Architects, were challenged with delivering a housing mix that addressed the localised demand for family housing, as well as delivering the project to an enhanced build standard.

The housing mix comprises 1 and 2-bed cottage flats, including 3 wheelchair-accessible properties, and 3 and 4-bedroom terraced houses.

Of the 26 homes, 20 have been constructed to the CCG’s Net Zero Home build standard, with air source heat pumps adopted for space heating and hot water.

Each ‘net zero ready’ home benefits from the addition of TESLA ENERGY solar battery storage units. Installed by CCG Group member Arc-Tech (Scotland) – who were also responsible for the solar PV panels, sprinkler systems, and EV chargers  – the Powerwall units are connected to between 9 and 12 solar panels and store energy for later use, allowing residents to take advantage of cheaper evening energy tariffs.

The remaining 6 properties are Passivhaus Classic-accredited. The first of their kind in the local authority, the homes – also adopting zero-emissions heating technologies –  have been delivered on a pilot basis to give West Dunbartonshire Council a real-time comparison of building standards, which will help inform the viability and scalability of the standard as legislative requirements continue to evolve during Scotland’s net zero transition.

All of the homes were constructed using CCG’s iQ Timber System, triple-glazed PVCu windows, and enhanced door sets to achieve the rigorous design standards.

Through a combination of fabric performance and zero-emissions technologies, operational carbon emissions have been significantly reduced, with an annual energy demand for space heating ranging from 1.69 to 24.13kWH/m2, and Low or Zero Carbon Generating Technologies (LZCGT) abatement, on average, 103.58% across the development. Furthermore, A max EPC rating of 105 (A), and an Environmental Impact Rating of 101 (A)has been achieved, with operational energy costs from as little as £35pcm.

Client: 
West Dunbartonshire Council

Value: 
£9m