The 10 extension builders from Google's results for Birmingham, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleBirmingham
Minesh Patel Architects designs residential house extensions and loft conversions across Birmingham. The practice assists clients with initial design guidance, planning permission applications, and building regulations compliance. Consultations help homeowners explore project timelines and structural options before construction begins.
0121 822 0208 54-57 Allison St, Birmingham B5 5TH
on GoogleNunthorpe, Middlesbrough
Hepburn Architects creates architectural designs for residential extensions, rural buildings, and new builds across North Yorkshire. Services cover initial project briefing, site-led planning strategies, and coordinated technical details for Building Control. The firm works directly on adapting existing homes and developing regional properties.
07720 813035 1 Church Ln, Nunthorpe, Middlesbrough TS7 0PD
on GoogleHollywood, Birmingham
JH Building Contractors constructs home extensions for properties throughout Birmingham and the West Midlands. The builders handle residential extension projects of various sizes and architectural styles. Services cover the full building process to expand living space across local residences.
07749 704709 25 Simon Rd, Hollywood, Birmingham B47 5LH
on GoogleErdington, Birmingham
TessCon carries out single-storey, double-storey, and kitchen extensions across Birmingham. The company also handles garage conversions to create additional space for homeowners. Projects are managed from the initial build stages through to full completion.
07599 937948 20, Wentworth Court, Erdington, Birmingham B24 8QN
on GoogleBirmingham
Lapworth Architects is an architecture practice designing house extensions for homeowners in Birmingham and across the West Midlands. Its extension schemes cover extra space for growing families, home offices and layouts that make better use of the garden.
0121 455 0032 4 Edward St, Birmingham B1 2RX
on GoogleStechford, Birmingham
Manor Loft Conversions delivers house extension and loft conversion services across Solihull, Birmingham, and the West Midlands. Its work includes initial project planning, design development, and building construction. The company offers multiple extension options to suit different property layouts.
0121 786 1350 9 Red House Rd, Stechford, Birmingham B33 8QY
on GoogleShirley, Solihull
Ridley Construction builds house and kitchen extensions for properties across Solihull and Birmingham. The firm manages entire building projects from start to finish, also undertaking commercial developments, new builds, property conversions, and residential renovations.
0121 647 7254 9 Welham Croft, Shirley, Solihull B90 4UU
Birmingham
CK Architectural supplies architectural design and planning services across Birmingham and the West Midlands. Its project options include single and double-storey extensions, loft conversions, garage conversions, and structural engineering. The team also produces 3D visualisations and assists with listed building consent.
Birmingham
West Midlands Extensions constructs single and double-storey home extensions throughout Birmingham and the West Midlands. Beyond residential extensions, the company handles new builds and installs fitted kitchens, bathrooms, driveways, and flooring for local homeowners.
Birmingham
J Dowd & Sons provides homeowner guidance on house extension specifications and roofing considerations in Birmingham. The business outlines how access, existing structures, drainage, and roof junctions influence project scopes and construction planning.
In Birmingham, single storey, per m² typically costs £1,700 – £2,400. Labour in West Midlands runs 6% below the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "house extensions birmingham". They are ranked on Google rating, online presence and other factors.
The figures above are Birmingham ranges. These explain what drives them, so you can read a quote properly.
Per-square-metre prices for single-storey, two-storey, side return and kitchen extensions, costs by size, the fees outside the build price, and planning limits by nation.
The permitted development limits for extensions, lofts, porches and outbuildings in England, where the rights do not apply, what prior approval and a certificate cost, and how Wales, Scotland and NI differ.
When the Party Wall Act applies, which notice to serve and how far ahead, what your neighbour can do, what a surveyor's award costs, and the rules in Scotland and NI.
Under permitted development, three metres for a terrace or semi and four for a detached, doubled to six and eight under the prior approval process. Height, materials and how much garden you cover all carry separate limits, and none of it applies in a conservation area.
If you are excavating within three metres of a neighbour's foundations or building on the boundary, yes. You must serve notice two months before work starts. Skipping it is the most common reason extension projects stall.