Edgbaston · B15–B16
House Extensions in Edgbaston
Kingdom Build designs and builds sympathetic extensions to Edgbaston's Victorian and Edwardian houses (B15–B16). Projects typically is quoted per property and 16–40 weeks, reflecting heritage detailing and, on the Calthorpe Estate, dual planning oversight. Fixed-price contract. Free site visit and written quote in 5–7 days.
- Free site visit
- 16–40 weeks
- Fixed-price contract
- 12-Month Guarantee
House Extensions in Edgbaston
Kingdom Build designs and builds sympathetic extensions to Edgbaston's Victorian and Edwardian houses (B15–B16). Projects typically is quoted per property and 16–40 weeks, reflecting heritage detailing and, on the Calthorpe Estate, dual planning oversight. Fixed-price contract. Free site visit and written quote in 5–7 days.
Extending in Edgbaston is a heritage exercise before it is a building one. The stock here is some of the most architecturally significant residential property in Birmingham — large Victorian villas around Carpenter Road and Wheeleys Road, substantial Edwardian houses through Vicarage Road, and the Calthorpe Estate's listed and conservation-area properties running off the Hagley Road. Extensions that succeed here are sympathetic and subordinate to the original building, not statements competing with it.
Two planning controls overlap, and that is the single biggest difference from working anywhere else in the region. Birmingham City Council's standard process applies, and where the property sits within the Calthorpe Estate, the Estate's own design oversight applies on top. Both have to be satisfied. That means thorough up-front work — measured surveys, heritage statements, pre-application meetings, and listed building consent where required — all of which we treat as part of the design stage rather than an afterthought.
Specialist trades decide the quality of the result. Matching a Victorian brick and its lime mortar, running a moulded string course through into new work, or forming a sash opening that reads as original are not things a general team can improvise. We work with lime plasterers, sash window restorers, slate roofers and traditional masons we have used for years — the kind of trades you cannot book on a fortnight's notice, which is why Edgbaston programmes are longer and planned further ahead.
Costs
How much does house extension cost in Edgbaston?
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 Edgbaston property.
| Option |
|---|
| Rear extension to a Victorian villaHeritage detailing, lime mortar, matched brick and joinery. Typically 20–30 weeks. |
| Garden room / orangery additionOften the most approvable form of extension on a conservation-area property. |
| Major extension + internal reconfigurationLarger villas where the extension triggers a whole-house replan. |
| Basement conversion or excavationSometimes the only way to add significant space on a constrained heritage plot. |
Free site visit across B15–B16, then a written fixed-price quote within 5–7 days. Get yours.
Planning
Do you need planning permission in Edgbaston?
Your planning authority is Birmingham City Council, plus Calthorpe Estate where applicable. Here is what that means in practice for house extensions in B15–B16.
- Much of Edgbaston sits within a conservation area, which removes permitted development rights entirely — a full householder application is required for work that would be permitted elsewhere.
- Listed properties additionally require listed building consent, which is assessed on the effect on special architectural and historic interest and covers internal alterations as well as external.
- Calthorpe Estate properties are subject to the Estate's own design oversight alongside Birmingham City Council. Both consents are needed, and they run on separate timescales.
- Applications here normally need supporting documents that a standard householder application does not: measured survey drawings, a heritage statement, and sometimes a structural or arboricultural report.
- Pre-application discussion is genuinely worth the fee in Edgbaston. Establishing the principle of an extension with the conservation officer before detailed design saves months.
- Mature trees are common on these plots and frequently carry Tree Preservation Orders, which can govern where an extension can physically go.
Local property
What the Edgbaston housing stock means for your extension
- Large Victorian villas (Carpenter Road, Wheeleys Road): typically rear or garden-facing extensions, kept subordinate to the original elevation and detailed to match.
- Edwardian houses (Vicarage Road): rear extensions and side additions; original joinery and plasterwork profiles need matching rather than approximating.
- Calthorpe Estate properties: dual consent, and a design language the Estate expects to see respected.
- Solid brick walls with lime mortar throughout — cement mortar traps moisture and causes spalling, so new work has to be built in lime.
- Slate roofs and original sash windows: both need specialist trades, and both have long lead times that shape the programme.
- Basements and cellars are common and are sometimes the better route to extra space than building outwards on a constrained heritage plot.
Our work
House Extensions we have delivered
House Extensions in Edgbaston — your questions
Other work we do in Edgbaston
House Extensions in nearby areas
- House Extensions in Sutton Coldfield
- House Extensions in Solihull
- House Extensions in Harborne
- House Extensions in Walsall
- House Extensions in Lichfield
Or read the general house extensions guide covering the whole West Midlands.
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Get a free quote for your Edgbaston project
Free site visit across B15–B16. Fixed-price quote in 5–7 days. No obligation.