Planning Permission Drawings

Whether you need Planning Permission isn’t always straightforward. Some home improvements can be carried out under Permitted Development, while others require a planning application or a different approval route.

Downland Studio can help you understand the likely route before you commit to drawings or an application.

Use our Planning Permission Checker to answer a few simple questions about your home and proposed project. We’ll highlight whether Permitted Development may be possible, whether further checks are needed and some of the other approvals you may need to consider.

Downland Studio Project Tool

Am I likely to need Planning Permission?

Answer a few questions about your home and proposed work to understand your likely planning route and some of the other approvals you may need.

First, tell us about your home

Householder Permitted Development rights depend on the property type and its history.

Was the home created through a previous change of use?

For example, a former shop, office or agricultural building converted to a home.

Please answer both questions.

Does the property have any special planning restrictions?

It's completely normal not to know. Choose “Not sure” and we'll tell you what needs checking.

Is it a Listed Building?
Is it in a specially protected area?

For example a Conservation Area, National Landscape / AONB, National Park or World Heritage Site.

Is there an Article 4 Direction or planning condition removing Permitted Development rights?
Please answer each question.

What are you thinking of doing?

Choose the main part of the project. We'll show other approvals separately at the end.

Please choose the main project type.
Please complete the project questions.

Property history and available space

Has the property been substantially extended or altered before?

Include extensions, roof enlargements, substantial internal alterations and substantial outbuildings.

Would buildings and extensions cover more than half the land around the original house?

Don't include the footprint of the original house itself. If you're unsure, we'll flag this for checking.

Please answer both questions.

Trees and the site

Tree protection is separate from Planning Permission, but it can affect the design and construction approach.

Are there trees close to the proposed work?
Do you know if a nearby tree is protected by a TPO?
Please answer both questions.
Your initial assessment

Our Approach

We focus on producing simple, clear and compliant drawings that respond to the site, surrounding context and local planning requirements.

Where required, we can liaise with the local planning authority to support the application process.

What We Do

Our planning service covers everything needed to prepare and submit a planning application or Lawful Development Certificate (LDC).

  • Existing and proposed drawings (plans & elevations)

  • Site plans and location plans

  • Householder planning applications

  • Lawful Development Certificates (LDC)

  • Submission via Planning Portal

Added Value

With a practical understanding of construction and buildability, proposals are developed with both planning approval and future delivery in mind.

If you’re considering an extension or residential project in Worthing, get in touch to discuss your planning requirements.