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🏡 Home Extensions Solihull | Design & Build Specialists

Home Extensions in Solihull

Single-storey, double-storey and rear extensions for homes across Solihull, Knowle, Dorridge and Shirley — designed, planned and built by one local team.

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Home Extensions Built for Solihull Homes

Solihull's mix of interwar semis, 1930s detached homes and larger properties around Knowle, Dorridge and Widney Manor gives most homeowners real scope to extend — whether that's a single-storey rear extension to open up a kitchen-diner, or a full double-storey addition for a growing family. We handle the whole project ourselves: architectural design, structural engineering, the planning application where one's needed, and the build itself, so you're dealing with one team from first sketch to final handover.

We've completed projects across the borough, including a ground-up eco-home build in Solihull featured in our portfolio — built to the same standard we bring to every extension, whatever its size.

  • Single, double-storey and wrap-around extensions
  • Full architectural design and structural engineering in-house
  • We handle Solihull MBC planning applications for you where required
  • 12-month workmanship guarantee, up to 5 years structurally
Modern home extension completed by HSS Design & Build in Solihull, West Midlands

Why Choose HSS in Solihull

Local knowledge of Solihull's planning patterns, backed by the accreditations that matter.

Local Planning Knowledge

We know which Solihull streets typically need a full planning application versus permitted development, and plan your project accordingly from day one.

Design-and-Build, One Team

Architecture, structural engineering and construction under one roof — no handoffs between separate firms, no gaps in accountability.

Fully Accredited

Federation of Master Builders, Gas Safe, NICEIC and REFCOM certified, with public liability and structural guarantees on every project.

Planning Permission for Extensions in Solihull

Solihull Metropolitan Borough Council is the local planning authority for the whole borough, including Solihull town centre, Knowle, Dorridge, Shirley, Olton and Castle Bromwich. Many single-storey rear extensions can be built under permitted development rights — generally up to 4 metres beyond the rear wall for a detached house (3 metres for an attached one), rising to 8 metres and 6 metres respectively with prior approval — but this depends entirely on your specific property and plot.

Solihull has 20 designated conservation areas, including Knowle, Olton, Dorridge (Station Approach) and Solihull town centre itself. Permitted development rights are removed for properties inside a conservation area, so any extension there needs a full planning application. We check this for every enquiry before recommending a design route, so you're not designing something that later needs reworking.

Planning rules summarised here are for general guidance only and can change — we'll confirm exactly what applies to your specific property before any work begins.

Read our full guide: Home Extensions in Solihull & Sutton Coldfield: Permitted Development →

Frequently Asked Questions

It depends on the size, your house type and whether your property sits in one of Solihull's 20 conservation areas. Many single-storey rear extensions qualify under permitted development, but larger, side, or upward extensions — and anything in a conservation area — generally need a full application to Solihull Metropolitan Borough Council. We assess this for you at the initial consultation stage, free of charge.
A single-storey rear extension typically takes 6–12 weeks once on site. Larger or double-storey extensions, or projects needing planning permission first, usually run 4–9 months from initial design through to completion — we'll give you a realistic timeline before work begins.
Yes. Where a planning application is needed, our architectural team prepares the drawings and submits the application to Solihull MBC on your behalf, and we handle any follow-up queries from the planning department.
All three. Solihull has a real mix of housing stock — from Dorridge and Knowle's larger detached homes to the semis and terraces around Olton and Shirley — and we design extensions to suit whichever you have.

Ready to Start Your Home Extensions in Solihull?

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