9 Essential Things You Need to Know About Planning Permission for a BalcoDeck®

Transform your underused rooftop into a stylish outdoor living space with a BalcoDeck®. But before you start planning your perfect terrace, here’s everything you need to know about UK planning permission requirements.

1

Yes, You Almost Always Need Planning Permission

In most cases, you'll need planning permission to create a new roof terrace in the UK. This includes:

  • Adding a terrace on any flat roof (including above single-storey extensions)
  • Changing an existing flat roof's use to a terrace (even without building work)
  • Installing railings, screens, balustrades, decking, or access stairs
  • Making structural changes to create a level walking area

Why planning is required:

  • Overlooking and privacy issues - roof terraces can allow views into neighbors' gardens and windows
  • Visual impact - railings or balustrades can alter your property's appearance from the street
  • Noise concerns - terrace use may introduce noise in previously quiet areas
  • Structural concerns - roofs not designed for walking may need reinforcing
2

Balustrades Are Almost Always Considered Development

Adding a new balustrade to a flat roof or raising its height typically requires planning permission, especially if:

  • The balustrade is over 1 meter in height from the original roof level
  • It materially changes the building's external appearance
  • It introduces or intensifies use of the roof space
3

Replacing Existing Balustrades May Not Need Permission

You might avoid planning permission when replacing an existing balustrade if:

  • The existing balustrade was lawfully installed
  • The replacement is like-for-like (same material, height, and appearance)
  • There's no change in roof area use

But watch out: Any increase in height, addition of privacy screens, or substantial design changes could trigger planning requirements. In Conservation Areas or listed buildings, even like-for-like replacements may need permission.

4

Location Matters - A Lot

London
  • Strictest requirements due to high population density
  • Most boroughs (Camden, Westminster, Islington) require full planning applications
  • Often refuse applications where privacy or visual impact is a concern
Conservation Areas
  • Article 4 Direction may apply, removing permitted development rights
  • Even minor changes like balustrade replacements may need permission
Listed Buildings
  • Listed building consent needed for any character-affecting alteration
  • Applies to both internal and external changes
Outside London/Rural Areas
  • May be more flexible but planning usually still required
  • Proposals with good screening and no overlooking risk more likely to succeed
5

Permitted Development Rights Don't Usually Apply

Generally, permitted development rights don't extend to roof terraces. The use of flat roofs as terraces is specifically excluded from residential permitted development.

Limited exceptions include:
  • Adding skylights or rooflights flush with the roof
  • Adding a small Juliet balcony with no external platform

Pro tip: Submit a Lawful Development Certificate (LDC) to confirm whether planning is needed, especially for balustrade replacements.

6

The Consequences of Skipping Planning Permission

Working without necessary planning permission can result in:

  • Enforcement action requiring removal of the terrace or balustrade
  • Property sale difficulties - unapproved works can delay sales
  • Insurance complications - issues with home insurance or building warranties
7

BalcoDeck® Can Handle Your Planning Process

If you don't have an architect or planning expert, BalcoDeck® offers full planning support including:

  • Initial cost assessment and budget quotes
  • Complete planning application management
  • £3,000 + VAT deposit (refundable if planning refused, applied to order if approved)
8

Planning Process Costs Breakdown

Step 1: Site Investigation

Site survey, plans, and initial assessment £1,400 - £1,600 + VAT

Step 2: Concept Design

Feasibility study and initial design options £900 - £1,200 + VAT

Step 3: Developed Design & Application

Planning drawings, statements, and submission £2,000 - £2,500 + VAT

Step 4: Technical Design (After Approval)

Structural engineering and Building Control £4,300 - £5,000 + VAT

Additional costs may include:

  • Extra site visits (£75/hour or £400 per visit)
  • Travel expenses beyond two visits
  • TfL zone and parking charges
  • Additional printing beyond one planning copy
9

Ready to Get Started?

The BalcoDeck® system adapts to a wide range of situations. Start with an initial phone consultation with their technical staff to:

  • Assess your property's suitability
  • Get tailored advice for your specific situation
  • Receive a detailed quote for your BalcoDeck®

Remember: Always check with your local planning authority before assuming any rights apply, and consider consulting a planning expert to avoid costly mistakes.