Two-storey extensions in Newquay
Everything for a two-storey extension in Newquay, in one place: types, guide prices for South West England, the approval rules in England and how to get started.
Newquay at a glance
- Postcode districts
- PL28, TR6, TR7, TR8 and TR9
- Area
- Cornwall, England
- Price region
- South West England
- Nearest towns
- Truro (10.4 miles), St Austell (14.1 miles), Redruth (14.3 miles), Bodmin (15.8 miles)
- Distance to Truro
- about 10.4 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
We cover postcode districts PL28, TR6, TR7, TR8 and TR9 in and around Newquay, along with neighbouring Truro, St Austell and Redruth.
Extensions available in Newquay
Two-storey rear extensions
From £57,500 in Newquay. Free visit to firm it up.
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Two-storey side extensions
Design, approvals and build for Newquay homes. Guide from £88,500.
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Two-storey wraparound extensions
Guide from £124,000 in Newquay, including VAT.
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Part single, part two-storey extensions
From £74,000 in Newquay. Free visit to firm it up.
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Extensions over a garage
Newquay guide price from £32,500, Standard spec.
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First-floor extensions
From £26,000 in Newquay. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
From £57,500 in Newquay. Free visit to firm it up.
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Two-storey extensions for detached houses
Our South West England guide starts at £88,500 for this type.
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Kitchen extensions with bedrooms above
From £57,500 (before kitchen units) in Newquay. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Guide from £57,500 (plus en-suite) in Newquay, including VAT.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Newquay we measure distances to every boundary before suggesting a type.
Also available in Cornwall
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Newquay
Newquay is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. 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.
The full England rules explained
Questions about extensions in Newquay
Do you cover Newquay?
Yes. We cover Newquay (PL28, TR6, TR7, TR8 and TR9) and the surrounding area, including Truro and St Austell. The first site visit is free.
What does a two-storey extension cost in Newquay?
Using our South West England guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Newquay do you cover?
Everywhere around it, including Truro (10.4 miles), St Austell (14.1 miles) and Redruth (14.3 miles), and the rest of Cornwall.