Create the open-plan space you've always wanted.
Knock through planning permission in Jersey.
A knock-through between two rooms creates open-plan living space. We assess the wall, confirm whether it is load-bearing, produce the structural calculations, and deliver Bylaw Plus drawings your builder can work from on day one.
- Free Initial Consultation
- All In-House — No Subcontractors
- Bylaw Plus — Builder-Ready Drawings
- Jersey Only Specialists
- Structural Engineering Included
What's Included
- Free consultation and structural assessment
- Load-bearing wall survey
- Structural calculations
- Bylaw Plus drawings
- Bye-law application
How It Works
Assessment
We visit the property and confirm the structural implications of the proposed knock-through.
Structural design
We produce structural calculations for any beam or lintel required.
Bylaw Plus
Drawings showing the full scope of works including temporary propping.
Planning Note
Internal knock-throughs do not require planning permission in a standard residential property. Bye-law approval is required for any structural works.
Frequently Asked Questions
Alterations & Windows we have taken through planning
Listed Window Replacement
“Replacing the old windows on our cottage in St Ouen felt like a legal minefield. The team sorted out the historic environment details and drawings without any fuss, and the planning department approved the slimline double glazing on our first attempt.”
Solar Panel Array
“We wanted in-roof solar panels on a roof facing the street in St Helier. Planning initially pushed back, but the team handled the submission brilliant and won the approval for us.”
First Floor Glass Balcony
“We were worried a glass balcony on our first floor would trigger privacy complaints from next door. The architectural team designed frosted side panels into the drawings, which satisfied the planning officer straight away.”
Ready to start your knock through project?
Free initial consultation. We advise on planning, costs, and timescales. Jersey only.