Two-storey extension plans and drawings in the Isle of Wight
Our plans and drawings service covers the whole of the Isle of Wight. Choose your town below, or get in touch to talk your project through.
The Isle of Wight at a glance
- Nation
- England
- Price region
- South East England
- Postcode areas
- PO
- Towns covered
- 8 listed below, plus surrounding villages
- Site visits
- By arrangement, with travel costs agreed in writing first
What a set of extension plans involves
This service suits you if you want clear, accurate plans for a two-storey extension, whether to apply for planning, check permitted development or get build prices. You get a measured survey, sketch options with guide costs, a chosen design developed into planning drawings and, if you go ahead, building regulations drawings coordinated with the structural engineer. Because we also build, the drawings are prepared with the build in mind.
The main places we list in the Isle of Wight are Newport (Isle of Wight) (PO30), Ryde (PO33), Cowes (PO31), Sandown (PO35), East Cowes (PO32) and Shanklin (PO37). We cover the villages in between too.
Fees
Planning drawings (survey and design) are a guide of £2,000–£3,500 and building regulations drawings and specification £1,500–£4,000, with your design stage priced in writing before it starts.
Rules in England
In England, the plans support either a householder application, costing £548 (or £575 for applications made from 8 December 2026), or a lawful development certificate for permitted development, costing £274 (about £288 for applications from 8 December 2026). They must show the extension's relationship to the original house, the boundaries and neighbours, because two-storey rear permitted development depends on the 3 m and 7 m limits.
Approval in England: Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
Building regulations: Building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end.
The Party Wall etc. Act 1996 applies, so notices may be needed for work on or near a shared wall or boundary.
Getting the design right
Start with a measured survey
Accurate drawings depend on accurate measurements of the house, the boundaries and neighbouring windows. We measure inside and out, note levels, drains and trees, and record the original house so permitted development limits can be checked against the right starting point.
Planning drawings versus building regulations drawings
Planning drawings show what the extension looks like and how it affects neighbours. Building regulations drawings show how it is built: foundations, structure, insulation, fire safety, ventilation and drainage. Most two-storey extensions need both, prepared at different stages.
How we work in the Isle of Wight
Visit by arrangement
We agree a visit to your home in the Isle of Wight and any travel costs with you in writing first, then look at the structure, access and boundaries.
Design and approvals
We draw the extension and check it against the rules for England, then apply for planning permission or a certificate of lawfulness, whichever fits.
Structure and building control
A structural engineer sizes the foundations and steels, and we get building regulations approval before work starts.
Build it
The new structure goes up first, then we open into the house, finish inside and get the completion certificate.
Towns we cover in the Isle of Wight
Two-storey extension plans and drawings in the Isle of Wight: questions
How long do extension plans take to prepare?
Survey, design and planning drawings usually take 4 to 8 weeks, depending on how many options you want to explore. Technical design, structural calculations and building control approval take a further 4 to 8 weeks, and this can overlap with the planning decision period.
Do I own the plans once they are drawn?
You receive copies of the drawings to use for your project, including your planning application and building regulations approval. Copyright in drawings normally stays with whoever prepares them unless agreed otherwise. Your written design stage price sets out how the drawings can be used.
Can I use plans from a previous owner's planning permission?
Sometimes. If the permission is still valid, usually within three years of the decision in England, you can build to it. The drawings may still need updating for building regulations, and the design may not suit your needs. We check old plans and permissions at the site visit.
Neighbouring areas
- Two-storey extension plans and drawings in Hampshire
- Two-storey extension plans and drawings in Dorset
- Two-storey extension plans and drawings in West Sussex
- Two-storey extension plans and drawings in Berkshire
All extension services in the Isle of Wight · About two-storey extension plans and drawings
Ready to see what a second storey could do for your home?
Visits here are by arrangement, with any travel costs agreed in writing first. We'll look at your house, talk through options and explain the approvals you'd need.