Mirfield, West Yorkshire
Rear extension planning drawings in Mirfield
We plan and build rear extensions for homeowners in Mirfield. Measured survey, design options, planning drawings and the application, handled for you. Start with a free site visit, then a written price once the design is agreed.
Mirfield sits in West Yorkshire, with postcode districts including WF14. Planning applications in Mirfield go to the local planning authority covering Mirfield, and we check its local design guidance for rear extensions before drawing.
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 Mirfield?
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. We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a rear extension in Mirfield?
Here is how the rules in England apply to a rear extension in Mirfield.
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 Mirfield like to extend?
Stone terraces and brick semis are typical of Mirfield. Matching sandstone or gritstone on a terrace is one of the biggest cost variables, and reclaimed stone is often the best match.
How a rear extension in Mirfield 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.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Rear extension planning drawings near Mirfield
Neighbouring places we cover include Liversedge (2.2 miles) and Heckmondwike (2.4 miles).
- Rear extension planning drawings in Liversedge
- Rear extension planning drawings in Heckmondwike
- Rear extension planning drawings in Dewsbury
- Rear extension planning drawings in Batley
- Rear extension planning drawings in Cleckheaton
Other work in Mirfield:
FAQ
Rear extension planning drawings questions in Mirfield
Do you handle building control in Mirfield?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Can you match the brick or stone on my Mirfield house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
How long does a rear extension take to build in Mirfield?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Is the site visit in Mirfield free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do I need planning permission for a rear extension in Mirfield?
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.