Typical planning ranges in Birmingham
What the West Midlands factor means
Our broad 0.98× regional model sits 2% below the national planning baseline. It is a UK Home Costs planning assumption rather than an externally measured city-wide price index. For projects with a large nationally priced equipment or materials component — such as solar, windows, EV chargers, insulation, underfloor heating and consumer units — the table uses only the documented share of that broad regional difference used by the corresponding calculator.
Planning considerations in Birmingham
- City-centre, inner-urban and suburban projects can have very different access, parking and delivery conditions.
- Separate structural repairs or remedial work from the headline renovation budget when the existing condition is uncertain.
- Ask contractors to identify waste, scaffold, professional fees and approvals so quotes can be compared against the same scope.
How to use these figures
Actual contractor pricing can vary by access, project scale and specification, so compare itemised quotes against the planning range.
Start with the table to understand project scale, then use a calculator to add floor area, condition, finish level and other project-specific inputs. A postcode-aware calculator can infer the same broad region while still allowing a manual override.
Compare this region with all locations
Detailed project cost guides in Birmingham
These pages apply the same transparent regional model — or the calculator's documented moderated regional treatment where appropriate — to detailed project tables rather than publishing a single city-wide headline figure.
Extension cost
Modelled Birmingham extension cost using the current £1,800–£3,000 per m² national benchmark before VAT and the UK Home Costs West Midlands regional planning model.
£1,800–£3,000 per m² national benchmark before VATOpen Birmingham guide →2026 regional guideLoft conversion cost
Modelled Birmingham loft conversion cost using the current £22,500–£80,000 across common 2026 conversion types and the UK Home Costs West Midlands regional planning model.
£22,500–£80,000 across common 2026 conversion typesOpen Birmingham guide →2026 regional guideRoof replacement cost
Modelled Birmingham roof replacement cost using the current £4,000–£19,000 for most roof replacements; £8,000 UK average and the UK Home Costs West Midlands regional planning model.
£4,000–£19,000 for most roof replacements; £8,000 UK averageOpen Birmingham guide →2026 regional guideHouse rewire cost
Modelled Birmingham house rewire cost using the current £3,000–£12,500 across common flats and houses and the UK Home Costs West Midlands regional planning model.
£3,000–£12,500 across common flats and housesOpen Birmingham guide →2026 regional guideNew boiler cost
Modelled Birmingham new boiler cost using the current £2,500–£4,000 like-for-like combi; £3,000–£15,000 broader installed projects and the UK Home Costs West Midlands regional planning model.
£2,500–£4,000 like-for-like combi; £3,000–£15,000 broader installed projectsOpen Birmingham guide →2026 regional guideSolar panel cost
Modelled Birmingham solar panel cost using the current £6,000–£10,000 for 3–6 kW solar-only systems; about £8,000 for 4 kW and the UK Home Costs West Midlands regional planning model.
£6,000–£10,000 for 3–6 kW solar-only systems; about £8,000 for 4 kWOpen Birmingham guide →2026 regional guideKitchen renovation cost
Modelled Birmingham kitchen renovation cost using the current £5,250–£28,400 current fitted-kitchen range; £10,550 UK average and the UK Home Costs West Midlands regional planning model.
£5,250–£28,400 current fitted-kitchen range; £10,550 UK averageOpen Birmingham guide →2026 regional guideBathroom renovation cost
Modelled Birmingham bathroom renovation cost using the current £5,500–£8,000 typical new bathroom; £7,000 UK average; £14,000+ high-end and the UK Home Costs West Midlands regional planning model.
£5,500–£8,000 typical new bathroom; £7,000 UK average; £14,000+ high-endOpen Birmingham guide →2026 regional guideWindow replacement cost
Modelled Birmingham window replacement cost using the current £500–£5,000+ per double-glazed window by type; £8,000–£15,000 for a typical 3-bed house and the UK Home Costs West Midlands regional planning model.
£500–£5,000+ per double-glazed window by type; £8,000–£15,000 for a typical 3-bed houseOpen Birmingham guide →2026 regional guideHome insulation cost
Modelled Birmingham home insulation cost using the current £654–£1,206 for common loft-quilt examples; £950–£4,600 cavity-wall examples by property type and the UK Home Costs West Midlands regional planning model.
£654–£1,206 for common loft-quilt examples; £950–£4,600 cavity-wall examples by property typeOpen Birmingham guide →2026 regional guideEV charger cost
Modelled Birmingham ev charger cost using the current about £1,000 typical home installation; eligible 2026 OZEV grants cover 75% up to £500 per socket and the UK Home Costs West Midlands regional planning model.
about £1,000 typical home installation; eligible 2026 OZEV grants cover 75% up to £500 per socketOpen Birmingham guide →2026 regional guideExternal wall insulation cost
Modelled Birmingham external wall insulation cost using the current £150–£200 per m² installed; £6,000–£30,000+ across common property examples and the UK Home Costs West Midlands regional planning model.
£150–£200 per m² installed; £6,000–£30,000+ across common property examplesOpen Birmingham guide →2026 regional guideUnderfloor heating cost
Modelled Birmingham underfloor heating cost using the current £50–£110 per m² across electric and wet new-build or renovation systems; £3,000–£13,000 for many full-property installs and the UK Home Costs West Midlands regional planning model.
£50–£110 per m² across electric and wet new-build or renovation systems; £3,000–£13,000 for many full-property installsOpen Birmingham guide →2026 regional guideConsumer unit cost
Modelled Birmingham consumer unit cost using the current about £485 for a typical installed 10-way RCBO unit; roughly £350–£800 by circuits and property size and the UK Home Costs West Midlands regional planning model.
about £485 for a typical installed 10-way RCBO unit; roughly £350–£800 by circuits and property sizeOpen Birmingham guide →Popular calculators
House renovation
Refine the Birmingham planning range with project-specific inputs.
Open calculator →Live calculatorHouse extension
Refine the Birmingham planning range with project-specific inputs.
Open calculator →Live calculatorLoft conversion
Refine the Birmingham planning range with project-specific inputs.
Open calculator →Live calculatorGarage conversion
Refine the Birmingham planning range with project-specific inputs.
Open calculator →Live calculatorKitchen renovation
Refine the Birmingham planning range with project-specific inputs.
Open calculator →Live calculatorBathroom renovation
Refine the Birmingham planning range with project-specific inputs.
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