Double-storey extensions in Walsgrave

Planning your two-storey extension in Walsgrave

Expect to apply to Coventry City Council for planning permission for a two-storey extension in Walsgrave; side extensions over one storey always need it. We prepare the drawings, and the structural work also needs Building Regulations approval.

New first-floor bedrooms normally need an escape window with at least 0.33 m² of clear openable area.
Party wall notices take one or two months to run, so they're best served as soon as planning is granted.
Councils often expect a side extension's first floor to be set back from the front wall, with its roof below the main ridge.

Postcode district: CV2
Planning and building control: Coventry City Council
From our West Bromwich base: 24 miles

Options to consider in Walsgrave

Two-storey side extension

Built over the side of the house, often where a driveway or old garage sits. It can create a garage, utility or study downstairs with a double bedroom above. Councils often expect the upper floor to be set back from the front and the roof to sit lower than the main ridge, so the design needs care to win approval.

Building over an existing extension

Adds a first floor on top of an existing single-storey extension or attached garage. It can cost less because the footprint already exists, but a structural engineer must check the existing foundations and walls first, and they sometimes need strengthening. The old flat roof comes off and the new floor is tied into the main house.

Double-storey extensions prices in Walsgrave

Guide prices start at £52,000 and run to £135,000 depending on size and specification. A two-storey side extension on a three-bed semi, about 32 m² over two floors: around £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. A free survey turns this guide into a fixed, itemised price.

Double-storey extensions in Walsgrave: common questions

What will the council look at when deciding planning?

Councils judge two-storey extensions mainly on their effect on neighbours and the street. They look at loss of light and outlook next door, overlooking from upstairs windows, and whether the extension sits comfortably with the house, often expecting side extensions to be set back and lower than the main roof. Many councils publish householder design guides, and following yours closely improves the chance of approval.

Which postcodes in Walsgrave do you work in?

We cover CV2 and the streets around them. If you're on the edge of Walsgrave, neighbouring Wyken and Binley are covered too.

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.

Does Coventry City Council need to approve my two-storey extension?

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

Also covering nearby

Other work we do in Walsgrave

Want a guide figure first? Use our quote tool for your Walsgrave extension, then book a survey for a fixed price for the agreed specification.