How Much Does It Cost To Build A Porch In 2026? A UK Guide

March 31st 2026

A porch is usually a straightforward addition, but while the scope is typically modest, costs can vary depending on size, materials, and how it ties into the existing building. Like most projects, clients are keen to understand a rough budget for the options available to them at the outset.

In this guide, we break down the key factors affecting porch costs in the UK, comparing four types: brick, rendered, enclosed timber, and open porches. We haven’t included uPVC porches here because they are often mass-produced and less customisable, with costs that tend to be more uniform.

Additionally, we have included costs from across different regions of the UK to provide more localised accuracy, and benchmarks across different contractors to give you a price range for small to large contractors.

Building A Porch Construction Cost Calculations

Our cost comparisons are based on a gross external floor area (GEFA) of 3m². The only exception is the open porch, which is based on a GEFA of 2m2. Since an open porch is primarily an aesthetic shelter, a smaller size better reflects its typical usage.

 

In terms of build specification, BuildPartner gives you three broad options to choose from:

 

• Basic spec is a basic finish; e.g., Leyland, Everest, Wickes.
• Standard spec is a standard finish; e.g., Dulux, Hamilton, Slim Line.
• Premium spec is a high-spec finish; e.g., Farrow & Ball, Fine Line, Siemens.

 

To keep this comparison simple, we have chosen standard spec in all our cost estimations. In addition to this, we have also provided three different benchmarks to show the range you can expect amongst different contractors, which are:

 

• Low benchmark – smaller companies are generally lower cost but less specialised and with low project management function; good for basic/standard-spec projects and tight budgets.

• Mid benchmark – medium-sized companies offer a balanced mix of cost-effectiveness and specialisation; good for mid-range projects for effective execution within moderate budgets.

• High benchmark – larger companies generally have a higher cost base but can handle a wide variety of specialist tasks; good for standard/premium-spec projects and project management.

 

Cost Of Building A Brick Porch

Here’s a table showing the average cost of building a 3m2 brick porch in the UK:

 

Brick Porch	Total Average Build Cost			Average Cost Per Sq Metre
	Low Benchmark	Mid Benchmark	High Benchmark	Low Benchmark	Mid Benchmark	High Benchmark
East Anglia	£8,597	£9,613	£10,551	£2,866	£3,204	£3,517
Greater London	£8,746	£9,780	£10,734	£2,915	£3,260	£3,578
Inner London	£8,742	£10,177	£10,679	£2,914	£3,392	£3,560
Midlands	£8,261	£9,238	£10,139	£2,754	£3,079	£3,380
North England	£8,730	£9,761	£10,714	£2,910	£3,254	£3,571
Northern Ireland	£8,447	£9,073	£10,207	£2,772	£3,024	£3,402
Scotland	£8,578	£9,591	£10,527	£2,859	£3,197	£3,509
South East	£8,107	£9,065	£10,058	£2,937	£3,284	£3,605
South West	£8,302	£9,521	£10,450	£2,838	£3,174	£3,483
Wales	£8,089	£9,045	£9,710	£2,696	£3,015	£3,237
Average	£8,460	£9,487	£10,377	£2,846	£3,188	£3,484

All costs exclude VAT.

 

Here’s what the data shows for the cost of building a brick porch:

 

• The minimum cost is £8,089, and the maximum cost is £10,734.
• The total average cost is £9,441, or £3,173 per square metre.

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Start your free trial with BuildPartner today to get the most accurate estimate of your construction project.

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Cost Of Building A Timber Porch

 

Here’s a table showing the average cost of building a 3m2 timber porch in the UK:

 

Timber Porch (Enclosed)	Total Average Build Cost			Average Cost Per Sq Metre
	Low Benchmark	Mid Benchmark	High Benchmark	Low Benchmark	Mid Benchmark	High Benchmark
East Anglia	£7,222	£8,076	£8,863	£2,407	£2,692	£2,954
Greater London	£7,259	£8,117	£8,909	£2,420	£2,706	£2,970
Inner London	£7,306	£8,447	£8,923	£2,435	£2,816	£2,974
Midlands	£6,909	£7,725	£8,479	£2,303	£2,575	£2,826
North England	£7,069	£7,904	£8,676	£2,356	£2,635	£2,892
Northern Ireland	£7,028	£7,543	£8,486	£2,305	£2,514	£2,829
Scotland	£7,141	£7,985	£8,764	£2,380	£2,662	£2,921
South East	£6,743	£7,540	£8,275	£2,443	£2,732	£2,998
South West	£6,670	£7,341	£8,057	£2,188	£2,447	£2,686
Wales	£6,775	£7,575	£8,125	£2,258	£2,525	£2,708
Average	£7,012	£7,825	£8,556	£2,350	£2,630	£2,876

All costs exclude VAT.

 

Here’s what the data shows for the cost of building a timber porch:

 

• The minimum cost is £6,670, and the maximum cost is £8,923.
• The total average cost is £7,798, or £2,619 per square metre.

 

Cost Of Building A Rendered Porch

 

Here’s a table showing the average cost of building a 3m2 rendered porch in the UK:

 

Rendered Porch	Total Average Build Cost			Average Cost Per Sq Metre
	Low Benchmark	Mid Benchmark	High Benchmark	Low Benchmark	Mid Benchmark	High Benchmark
East Anglia	£7,031	£7,862	£8,629	£2,344	£2,621	£2,876
Greater London	£7,097	£7,935	£8,709	£2,366	£2,645	£2,903
Inner London	£7,120	£8,258	£8,700	£2,373	£2,753	£2,900
Midlands	£6,672	£7,461	£8,189	£2,224	£2,487	£2,730
North England	£6,887	£7,701	£8,452	£2,296	£2,567	£2,817
Northern Ireland	£6,749	£7,547	£8,283	£2,250	£2,516	£2,761
Scotland	£5,974	£6,617	£7,226	£1,991	£2,206	£2,409
South East	£6,572	£7,349	£8,154	£2,191	£2,450	£2,718
South West	£6,723	£7,674	£8,423	£2,241	£2,558	£2,808
Wales	£6,582	£7,360	£7,913	£2,194	£2,453	£2,638
Average	£6,741	£7,576	£8,268	£2,247	£2,525	£2,756

All costs exclude VAT.

 

Here’s what the data shows for the cost of building a rendered porch:

 

• The minimum cost is £5,974, and the maximum cost is £8,709.
• The total average cost is £7,528, or £2,509 per square metre.

 

Cost Of Building An Open Porch

 

Here’s a table showing the average cost of building a 2m2 open porch:

 

Open Porch	Total Average Build Cost			Average Cost Per Sq Metre
	Low Benchmark	Mid Benchmark	High Benchmark	Low Benchmark	Mid Benchmark	High Benchmark
East Anglia	£3,825	£4,277	£4,694	£1,912	£2,138	£2,347
Greater London	£3,872	£4,329	£4,752	£1,936	£2,165	£2,376
Inner London	£3,892	£4,505	£4,751	£1,946	£2,253	£2,376
Midlands	£3,695	£4,132	£4,535	£1,847	£2,066	£2,267
North England	£3,855	£4,311	£4,732	£1,928	£2,156	£2,366
Northern Ireland	£3,759	£4,029	£4,533	£1,847	£2,015	£2,266
Scotland	£3,825	£4,277	£4,694	£1,912	£2,138	£2,347
South East	£3,593	£4,018	£4,458	£1,953	£2,184	£2,397
South West	£3,561	£3,915	£4,296	£1,750	£1,957	£2,148
Wales	£3,693	£4,048	£4,332	£1,810	£2,024	£2,166
Average	£3,757	£4,184	£4,578	£1,884	£2,109	£2,306

All costs exclude VAT.

 

Here’s what the data shows for the cost of building an open porch:

 

• The minimum cost is £3,561, and the maximum cost is £4,752.
• The total average cost is £4,173, or £2,100 per square metre.

 

Summary Of The Average Cost To Build A Porch

So, how much does it cost to build a new porch in the UK? Based on the four different types of porches covered in this article, you can expect building a porch to cost on average (when using a mid-benchmark contractor):

• Brick porch: £9,487, or £3,118 per square metre
• Timber porch: £7,825, or £2,630 per square metre
• Rendered porch: £7,576, or £2,525 per square metre
• Open porch: £4,184, or £2,109 per square metre

 

Last year, we ran the numbers on these same porch builds to the exact same specification, and since then, prices have seen an average increase of around 16%. 

 

Please remember that all costs exclude VAT.

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Start your free trial with BuildPartner today to get the most accurate estimate of your construction project.

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Frequently Asked Questions About Building A Porch

Here are some frequently asked questions about building a porch.

Do I need planning permission to build a porch?

Many porches fall under permitted development, but you’ll need planning permission if your porch exceeds 3 meters in depth at the front, is on a listed building, or is within 2 meters of the boundary with a road. Always check with your local council.

What are the most common unexpected costs when building a porch?

The most common additional costs include drainage work, alterations to the existing roof, reflagging or block paving around the porch, and the cost of the front door (including glazing, frame, and hardware).

What is a typical cost breakdown for building a porch?

For an example project (excluding overheads, profit, and VAT), the cost split might look like this:

• Building Materials: £2,129.51 (27%)
• Finishing Materials: £2,167.06 (27%)
• Labour: £3,616.03 (46%)

Labour typically accounts for the largest portion of the budget, while materials and finishes make up the rest. Percentages are approximate and illustrate how costs are distributed across the project.