Planning in the Kent Countryside: What Landowners and Homeowners Need to Know
Kent’s countryside is one of the county’s greatest assets. From the rolling landscapes of the Kent Downs to ...
22 October, 2026
GSP can offer trusted initial advice on the potential for planning permission to be granted by reviewing the site’s planning constraints, history and relevant development plan policies and guidance

GSP is a multi-disciplinary consultancy and can offer to work on the plans as well as make the planning case

GSP can review your intended proposal, advise as to whether planning permission is required and/or submit an application to the Council seeking to certify its lawfulness

GSP can review the decision and provide advice about a potential appeal

GSP can act on your behalf to challenge the notice at appeal or work with the Council to try to withdraw the notice or minimise the issues

GSP will research the planning merits of an objection and can author detailed letters of representation on your behalf as well as attend and speak at planning committee meetings
Based in Hartley, near Longfield, Graham Simpkin Planning provides planning consultancy and architectural services across Kent and London. We advise homeowners, landowners, developers and businesses on house extensions and planning applications, infill and residential development, and planning appeals.
Our team of planners and architectural staff bring over 40 years of experience in managing complex planning and architectural projects. We handle a wide range of developments, from small-scale residential and householder proposals to large-scale residential, commercial, and various other types of projects.
We strive to simplify your interactions with what is a complex planning system, ensuring the process is as straightforward as possible. By collaborating closely with our clients and adopting a team-oriented approach, we consistently achieve the best outcomes.

GSP offers trusted initial advice on the likelihood of obtaining planning permission by thoroughly reviewing a site’s planning constraints, history, and relevant development plan policies and guidance

GSP is a multi-disciplinary consultancy that provides comprehensive services, including architectural drawings and advocacy for planning cases relating to both residential and non-residential properties

GSP can review a proposal and site to determine if any such rights exist, potentially avoiding the need for costly planning applications. If so, GSP can submit an application to certify its lawfulness

GSP can review the decision and provide advice regarding a potential appeal. Alternatively, we can proceed directly with an appeal against a refusal of an application or a condition imposed by the Council

GSP can act on your behalf to challenge the notice at appeal. Alternatively, we can collaborate with the Council to mitigate the issues it presents or even seek to have the notice withdrawn altogether

GSP will assess the planning merits of an objection and can prepare detailed letters of representation on your behalf. We can also attend planning meetings and/or appeals to advocate your interests
Practical guidance from our planning team on the issues that matter to homeowners, landowners and developers across Kent and London. From permitted development and house extensions to building in the countryside, our latest articles help you understand your options before you apply.
Kent’s countryside is one of the county’s greatest assets. From the rolling landscapes of the Kent Downs to ...
22 October, 2026Do You Need Planning Permission for a home extension in Kent? A 2026 Guide Short answer: often not, if your extension is...
15 October, 2026local planning authorities
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