Solihull · B91–B94
House Extensions in Solihull
Kingdom Build designs and builds house extensions across Solihull (B91–B94) under Solihull MBC. Single-storey rear extensions typically is quoted per property at the premium specification this market expects. Fixed-price contract, 12-month guarantee, free site visit and a written quote within 5–7 days.
- Free site visit
- 10–24 weeks
- Fixed-price contract
- 12-Month Guarantee
House Extensions in Solihull
Kingdom Build designs and builds house extensions across Solihull (B91–B94) under Solihull MBC. Single-storey rear extensions typically is quoted per property at the premium specification this market expects. Fixed-price contract, 12-month guarantee, free site visit and a written quote within 5–7 days.
Solihull is the most exacting market we work in, on both sides of the job. The houses are bigger, the gardens are wider and the specification expectations are higher — clients here are generally not choosing between us and the cheapest quote, they are choosing on detailing and delivery. Most Solihull extensions we build involve structural slim-frame glazing, engineered stone worktops, bespoke joinery and increasingly MVHR and smart home integration.
The stock ranges from inter-war housing around Olton — where the work resembles a good Sutton Coldfield job — through to the substantial detached properties in Knowle, Dorridge and the village fringes near Hampton-in-Arden, where extensions are frequently large enough to need a genuine architectural response rather than a bolt-on.
Solihull MBC has a deserved reputation as one of the more thorough planning authorities in the region, and that shapes how we design here. Officers pay close attention to materials, proportions, ridge heights, overlooking and the effect on the streetscape. The flip side is genuinely useful: a careful, well-detailed application usually goes through first time, and we would rather spend two extra weeks on drawings than lose eight weeks to a refusal and resubmission.
Costs
How much does house extension cost in Solihull?
What you pay depends mostly on which of the options below your property allows — the gap between the simplest and the most involved is substantial, and it is decided by the building rather than by us. We survey first, then give you a single fixed price. We would rather do that than publish a range that does not survive contact with your Solihull property.
| Option |
|---|
| Single-storey rear extension20–30m² at the specification Solihull expects — structural glazing, engineered stone, quality joinery. |
| Wraparound extensionSide return plus rear. Common on the Olton and Shirley stock. |
| Double-storey extensionKnowle and Dorridge detached. Full planning application, and usually an architect-led design. |
| Major extension + internal replanLarge detached properties where the extension triggers a whole-house reconfiguration. |
Free site visit across B91–B94, then a written fixed-price quote within 5–7 days. Get yours.
Planning
Do you need planning permission in Solihull?
Your planning authority is Solihull Metropolitan Borough Council. Here is what that means in practice for house extensions in B91–B94.
- Permitted development limits are the national ones, but Solihull MBC applies the qualifying tests strictly — particularly on what counts as the 'original' house, which catches out properties already extended in the 1980s and 90s.
- Officers scrutinise materials and proportions closely. Expect to justify brick and render choices, window proportions and ridge height against the existing elevation and the wider streetscape.
- Overlooking is the most common refusal reason on two-storey work in B91–B94, given the generous but overlooked plot layouts across much of the borough.
- Old Solihull and parts of Knowle are conservation areas, which removes permitted development rights and raises the bar on materials and detailing. We design to that from day one rather than at the redesign stage.
- Parts of the borough near Hampton-in-Arden and the village fringes sit within or adjoining Green Belt, where extension size is tightly controlled by proportionate-addition tests.
Local property
What the Solihull housing stock means for your extension
- Inter-war semis and detached (Olton): rear and side-return extensions, similar in structure to Sutton Coldfield work but usually specified higher.
- Post-war detached (Shirley, Solihull Lodge): generous plots, straightforward structurally, often large single-storey rear additions with wide glazing spans.
- Substantial detached (Knowle, Dorridge): major extensions and full replans, frequently architect-collaborated and running past quoted per property.
- Village fringe properties (Hampton-in-Arden, Balsall Common edge): Green Belt and conservation constraints usually govern what is achievable more than the building does.
- Wide glazing spans are the norm here — slim-frame sliding systems need steelwork designed around them from the start, not retrofitted into a standard opening.
Our work
House Extensions we have delivered
House Extensions in Solihull — your questions
Other work we do in Solihull
House Extensions in nearby areas
- House Extensions in Sutton Coldfield
- House Extensions in Edgbaston
- House Extensions in Harborne
- House Extensions in Walsall
- House Extensions in Lichfield
Or read the general house extensions guide covering the whole West Midlands.
Ready to start?
Get a free quote for your Solihull project
Free site visit across B91–B94. Fixed-price quote in 5–7 days. No obligation.