Gwrthwynebu

1 Ymgynghoriad ar Cynllun Datblygu Lleol Newydd

ID sylw: 6712

Derbyniwyd: 11/03/2026

Respondent ID: 1068

Ymatebydd: Persimmon Homes (East Wales)

Asiant : Asbri Planning

Cadarn? Heb nodi

Crynodeb o'r Gynrychiolaeth:

Policy CC1 – Residential Operational Net Zero Carbon Development

Persimmon Homes has significant concerns regarding Policy CC1 and objects to it on the basis that it
replicates requirements already being progressed at a national level through Welsh Government’s Future Homes Standard (FHS). The FHS is intended to deliver “zero carbon ready” homes via a unified Building Regulations framework, making additional local policy unnecessary. At present, Building Regulations Part L1A sets out the standards for energy efficiency in new dwellings, and Persimmon already designs its homes to go beyond these minimum thresholds. This includes enhanced insulation
and improved building fabric performance, with reduced U values for elements such as walls, roofs, floors and windows to minimise heat loss. As a result, our homes typically achieve strong Energy Performance Certificate (EPC) ratings, generally in the A–B categories.

Introducing further operational net zero requirements at a local planning level risks adding cost, complexity and uncertainty, potentially affecting the viability and deliverability of housing sites. The Development Plans Manual for Wales is clear that local plans should not repeat national policy or seek to regulate matters already addressed through other statutory regimes. On that basis, Policy CC1 is not considered to be justified and is inconsistent with the second test of soundness.

The proposed shift in standards from April 2030 represents a substantial and abrupt escalation in
expectations. Although the policy refers to schemes such as Tai ar y Cyd and AECB CarbonLite, these examples largely relate to grant funded affordable housing projects. There is no robust evidence that equivalent standards can be met on mainstream housing sites without undermining overall viability. The Development Plans Manual requires policies to be based on strong evidence and to be realistically deliverable across the plan period. Without this, there is a risk that the proposed policy could impede
housing delivery and compromise the RLDP’s ability to meet identified needs.

Policy CC1 could also lead to inconsistent energy performance requirements across Local Planning
Authorities in Wales, contradicting the advantages of a unified regulatory system via Building Regulations. For volume housebuilders working across several authority areas, this would introduce unnecessary variation and complication. The DPM highlights the importance of policies that support
housing delivery and avoid avoidable burdens. By introducing bespoke modelling thresholds and
operational monitoring requirements, CC1 risks blurring the line between planning and Building Control,
raising questions about the policy’s justification and practical application.

It is Persimmon’s view that Policy CC1 is premature and that it is more appropriate for such matters to be addressed through building control rather than planning policy. In its current form, the policy risks impacting housing supply, affordable housing delivery and overall implementation across the plan period. For these reasons, we consider that Policy CC1 fails to satisfy the relevant tests of soundness and should be removed from the emerging RLDP.

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