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Immingham, Lincolnshire

Rear extension planning drawings in Immingham

Measured survey, design options, planning drawings and the application, handled for you. If you live in Immingham and want to know what a rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.

We cover Immingham (DN40) as part of our Lincolnshire work. Rear extension applications in Lincolnshire are householder applications, which councils aim to decide within about eight weeks.

Book a free site visit

Tell us about the house and we'll call to arrange a free, no-obligation visit.

What do rear extension planning drawings cost in Immingham?

As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. 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 rear extension in Immingham?

Here is how the rules in England apply to a rear extension in Immingham.

England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.

Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.

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 Immingham like to extend?

Immingham has plenty of inter-war semis and bungalows, and single-storey rear extensions suit both.

How a rear extension in Immingham comes together

  1. Survey visit

    We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.

  2. Drawings and budget

    Floor plans and elevations for the options, each with a guide price.

  3. Approvals

    Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.

  4. 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.

Rear extension planning drawings near Immingham

Close by, we work in Grimsby, about 6.7 miles away, and Cleethorpes, about 8.4 miles away.

Other work in Immingham:

All rear extensions in Immingham

FAQ

Rear extension planning drawings questions in Immingham

What postcode areas do you cover around Immingham?

Including DN40, and the surrounding Lincolnshire area.

Can you match the brick or stone on my Immingham house?

We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.

Can planning conditions affect the build?

Yes, for example matching materials or obscure glazing. We plan for them.

What do rear extension planning drawings cost in Immingham?

As a guide, £1,000–£2,500 including VAT for a single-storey rear extension and £2,000–£3,500 for a two-storey scheme, covering the measured survey, design options and the application. The council fee is extra.

Do I need a party wall agreement?

In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.

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.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

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