Double-storey extensions in Kingswinford

Before your two-storey extension in Kingswinford

Planning permission from Dudley Council is the first hurdle for most double-storey extensions in Kingswinford. Householder applications have an eight-week target for a decision, and Building Regulations approval and the Party Wall Act may also apply.

The householder planning fee in England is £548 from April 2026, paid to Dudley Council when you apply.
Scaffolding is usually up for most of the build, so think about access along the side of the house early.
A side extension of more than one storey always needs a householder planning application.

Postcode district: DY6
Planning and building control: Dudley Council
From our West Bromwich base: 8 miles

Choices to weigh up in Kingswinford

Combined side and rear

An L-shaped two-storey build wrapping the side and back of the house gives the biggest gain, sometimes two extra bedrooms. It's a substantial project with more steel and a complex roof junction, and it will need a householder planning application. Expect a longer programme and a careful plan for keeping the house secure while the roofs are joined.

Two-storey rear extension

Adds depth to both floors across the back of the house: a kitchen-diner below and a larger bedroom or new bathroom above. Permitted development only covers projections up to 3 metres and at least 7 metres from the rear boundary, so many rear builds still need planning. Overlooking and loss of light to neighbours are the usual tests.

Double-storey extensions prices in Kingswinford

Expect to budget between £52,000 and £135,000 depending on size and specification in Kingswinford. A two-storey side extension on a three-bed semi, about 32 m² over two floors: typically £68,000–£88,000.

Guide prices for double-storey extensions
Option	Guide price	Good to know
Compact two-storey rear (20–28 m² total)	£52,000 – £72,000	Bigger kitchen below, bedroom or bathroom above
Two-storey side or rear (30–40 m² total)	£68,000 – £98,000	The usual size on a three-bed semi
Large or combined side and rear (45 m²+)	£95,000 – £135,000	More steel, a complex roof and a longer programme

Guide ranges include VAT where it applies. Your fixed price for the agreed specification follows a free survey at your Kingswinford address.

Before you book in Kingswinford

How much does a double-storey extension cost?

In the West Midlands, most double-storey extensions cost between £52,000 and £135,000, including VAT where it applies. A typical side extension on a three-bed semi, around 32 m² across both floors, usually costs £68,000–£88,000 built to a plastered finish. Kitchen units, a bathroom suite, flooring and decorating are priced separately, so you can choose them to suit your budget.

Which postcodes in Kingswinford do you work in?

We cover DY6 and the streets around them. If you're on the edge of Kingswinford, neighbouring Wordsley and Brierley Hill are covered too.

Can we stay in the house while you build?

Most families do. The early stages are outside, and the existing house stays closed off until the shell is weathertight. The harder weeks are when openings are cut through on both floors, which brings dust and noise into bedrooms and the kitchen. We sheet off openings, lock up securely every night and agree in advance which rooms you'll lose and when.

Will I need permission from the council in Kingswinford?

Usually both. Most two-storey extensions need a planning application to Dudley Council, and the structural work needs Building Regulations approval from its building control team or a registered building control approver.

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Let's talk about the space you need; a written, itemised quote for your Kingswinford home costs nothing and commits you to nothing.