Truro, Cornwall
Side return extension in Truro
Side return extension in Truro: infilling the narrow passage beside a Victorian or Edwardian back addition. We measure the house, show you what the rules allow, price it in writing and build it.
Truro sits in Cornwall, with postcode districts including TR1. Side returns suit the Victorian and Edwardian terraces found across parts of Cornwall, where the kitchen sits in a narrow back addition.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a side return extension cost in Truro?
A side return extension in Truro is priced at £2,390–£3,950 per square metre including VAT as a guide, before kitchen fit-out and fees. South West prices run slightly above our West Midlands baseline; natural stone to match the house is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £28,500–£47,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £42,000–£69,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a side return extension in Truro?
Whether your side return extension in Truro needs a planning application depends on its size, your house and any local restrictions.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Truro like to extend?
Stone-built and rendered houses are common around Truro, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.
How a side return extension in Truro comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Side return extensions near Truro
We also build side return extensions in nearby Falmouth (7.7 miles) and Redruth (7.8 miles).
- Side return extension in Falmouth
- Side return extension in Redruth
- Side return extension in Newquay
- Side return extension in Camborne
- Side return extension in St Austell
Other work in Truro:
FAQ
Side return extension questions in Truro
Do you handle building control in Truro?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do I need planning permission for a rear extension in Truro?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
How much space does a side return add?
Typically 8 to 18 square metres, enough to turn a galley kitchen into a kitchen-diner with an island.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
What postcode areas do you cover around Truro?
Including TR1, and the surrounding Cornwall area.
Is the site visit in Truro free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.