Gainsborough, Lincolnshire
Terraced house rear extension in Gainsborough
We plan and build rear extensions for terraced houses for homeowners in Gainsborough. Rear and side return extensions for terraces, with access through the house and two neighbours. Start with a free site visit, then a written price once the design is agreed.
We cover Gainsborough (DN21) as part of our Lincolnshire work. In Gainsborough we plan the delivery route through the house and the skip licence before anything else.
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 terraced house rear extension cost in Gainsborough?
Guide prices for a terraced house rear extension in Gainsborough start from our East Midlands rate of £1,990–£3,200 per square metre, including VAT. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £27,000–£43,000 |
| 3 m wide × 6 m deep (18 m²) | £36,000–£57,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a terraced house rear extension in Gainsborough?
Planning for a terraced house rear extension in Gainsborough follows the English householder rules.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Gainsborough like to extend?
Red-brick terraces and semis are typical of Gainsborough. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How a terraced house rear extension in Gainsborough 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Terraced house rear extensions near Gainsborough
Neighbouring places we cover include Retford (8.4 miles) and Scunthorpe (14.3 miles).
- Terraced house rear extension in Retford
- Terraced house rear extension in Scunthorpe
- Terraced house rear extension in Lincoln
- Terraced house rear extension in Boughton
- Terraced house rear extension in Worksop
Other work in Gainsborough:
FAQ
Terraced house rear extension questions in Gainsborough
Do you handle building control in Gainsborough?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How much does a terraced house rear extension cost in Gainsborough?
As a guide, £1,990–£3,200 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £27,000–£43,000 at that rate. Your written price follows the survey.
How deep can I go on a terrace?
3 metres under permitted development in England, or up to 6 metres with prior approval outside designated land.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Do I need planning permission for a rear extension in Gainsborough?
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.