Extensions in Lowestoft: design, planning and build
We design and build house extensions for homes in Lowestoft and the surrounding Suffolk area, with guide prices adjusted for the region.
- Postcode districtsNR32, NR33
- Price regionEast of England (×1.06)
- Planning rulesEngland
- Site visitFree, no obligation
Areas we cover around Lowestoft
We cover Lowestoft and the postcode districts NR32, NR33. We also work in nearby Woodbridge (31 miles), Stowmarket (37 miles), Ipswich (38 miles), Felixstowe (39 miles), Bury St Edmunds (47 miles). Great Yarmouth, in Norfolk, is roughly 9 miles from Lowestoft and also on our list.
What extensions cost in Lowestoft
We publish guide prices so you can budget before anyone visits. For Lowestoft they are adjusted by ×1.06, the factor we use across East of England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Kitchen extensions | 20 m² | £44,500 – £56,500 |
| Orangery extensions | 16 m² | £47,000 – £59,500 |
| Wraparound extensions | 25 m² | £60,500 – £77,000 |
| Side return extensions | 11 m² | £27,500 – £35,000 |
| Extensions over a garage | 12 m² | £26,500 – £34,500 |
| Double-storey extensions | 32 m² | £61,000 – £80,000 |
Choosing the right extension in Lowestoft
The East of England mixes market-town terraces, inter-war semis and modern estates. Clay soils are common in parts of the region, which can affect foundation design.
The types we would usually look at first for a home in Lowestoft are bungalow extensions, wraparound extensions and double-storey extensions, depending on the garden and how the house is laid out.
Approvals for an extension in Lowestoft
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
All extension types we build in Lowestoft
- Building regulations for extensions · from £950
- Bungalow extensions · from £27,500
- Pitched roof extensions · from £23,500
- Wraparound extensions · from £38,000
- Extensions over a garage · from £25,000
- Flat roof extensions · from £22,000
- Timber frame extensions · from £22,000
- Bedroom extensions · from £27,500
- Kitchen extensions · from £28,500
- Porch extensions · from £4,200
- Single-storey rear extensions · from £22,000
- Glass box extensions · from £31,500
- Orangery extensions · from £31,500
- Home office extensions · from £16,500
- Annexe extensions · from £58,000
- Planning permission for extensions · from £350
- Extension plans and drawings · from £1,250
- Side extensions · from £23,000
- Side return extensions · from £19,000
- Utility and boot room extensions · from £14,500
- Double-storey extensions · from £40,000
- Conservatory replacement extensions · from £21,000
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Lowestoft
How much does an extension cost in Lowestoft?
Using our East of England factor (×1.06), a standard-spec single-storey extension of 20 m² is a guide £43,000 to £55,500 including VAT, and a 32 m² two-storey extension £61,000 to £80,000. Your written price follows the survey.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Do you cover all of Lowestoft?
Yes, including the surrounding parts of Suffolk. Site visits are free and there is no obligation.
Book a free site visit in Lowestoft
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.