Builder Marketing Statistics 2026: Planning Volumes, Job Values and Search Demand

Domestic building is a strange market to sell into. Job values are enormous by trade standards, the buying decision takes months, and the customer will probably only make it once or twice in their life.

That makes marketing for builders less about volume and more about being present at one specific moment, then surviving a long, anxious evaluation.

The data below covers what the UK domestic building market looks like going into the back half of 2026: how many firms are competing, what homeowners are applying to build, what those jobs cost, when people search, and what the wider economy is doing to demand.

Key builder marketing statistics for 2026

• 58,925 UK enterprises were registered under construction of domestic buildings in 2025, up from 35,400 in 2015, according to ONS UK Business Counts data via Nomis [1]
• 52,545 of those firms (89.2%) employ four people or fewer, and 95.8% are micro businesses with under ten staff [1]
• English planning authorities decided 33,500 householder development applications in the quarter to March 2026, down 7% year on year, per MHCLG [2]
• 91% of householder applications were granted, 93% within eight weeks or the agreed time [2]
• 5,200 permitted development applications were reported in Q1 2026, with large householder extensions accounting for 53% of them [2]
• A 20m² single storey extension averages £48,000, or £1,800 to £3,000 per m² for a full fit, according to the Checkatrade cost guide updated June 2026 [3]
• A dormer loft conversion averages £50,000 over 10 to 12 weeks, per Checkatrade [4]
• FMB members reported workload balances of +35% in Northern Ireland and +28% in Scotland against +7% in Wales in H2 2025 [5]
• Only 32% of UK design and build firms reported a good or very good outlook for 2026, against 55% of architects, in the 2026 Houzz UK State of the Industry study [6]
• "Loft conversion" draws 11,000 UK searches a month and "extension builders near me" carries a $3.50 CPC, on Ahrefs Keywords Explorer data for August 2026 [7]
• Private housing repair and maintenance output fell 5.0% in May 2026, the main drag on total construction output that month, per ONS [8]

How many building firms is a UK homeowner choosing between?

Roughly 59,000 registered companies describe themselves as constructing domestic buildings, and almost nine in ten of them are four people or fewer.

ONS UK Business Counts figures accessed through Nomis put 58,925 enterprises in SIC 41202, construction of domestic buildings, in 2025 [1]. That is up from 35,400 in 2015, a 66% increase in a decade.

The size distribution is the interesting part. 52,545 firms have zero to four employees, and only 200 in the whole category employ 100 or more people.

Source: ONS UK Business Counts via Nomis, 2025 [1]

So the competitive set for a homeowner extending a semi in Reading is not 59,000 firms. It is a handful of local outfits with three to eight people, all marketing on roughly the same budget, which is to say almost none.

In a market where nobody has a marketing department, small advantages compound fast. A firm with a proper website, twenty recent Google reviews and photographed jobs is not competing against a national brand. It is competing against a Facebook page last updated in 2023.

Note too that the firm count grew through a period when demand did not. More companies chasing flat or falling householder work is a squeeze, and it shows in the enquiry-to-win ratios builders complain about.

What do the FMB numbers say about builder workloads in 2026?

Workloads were positive but uneven at the last reading, with the balance ranging from +35% in Northern Ireland to +7% in Wales.

The FMB State of Trade Survey for H2 2025, published 31 March 2026 and based on 493 responses, reported net workload balances of +22% in England, +28% in Scotland, +35% in Northern Ireland and +7% in Wales [5]. Enquiry balances were tighter: +19%, +16%, +12% and +14% respectively.

Look at that gap. In Northern Ireland workloads ran 23 points ahead of enquiries; in Wales enquiries ran 7 points ahead of workloads. Where enquiries outrun workloads, the bottleneck is conversion and pricing, not lead generation. Where workloads outrun enquiries, firms are living off backlog and will feel the drop later.

The FMB also found 72% of firms affected by a lack of skilled workers, with carpenters (30%) and bricklayers (29%) hardest to hire, and 49% reporting job delays as a result [5]. Delays are a marketing problem too: a delayed job is a delayed review, photograph and referral.

The Houzz UK State of the Industry study, fielded 12 to 28 January 2026 among 145 businesses, is gloomier about the build side. Just 32% of design and build firms called their 2026 outlook good or very good, against 55% of architects and 54% of interior designers, and 73% of design and build firms said 2025 revenues fell short of expectations [6].

Architects being more optimistic than builders is worth watching, since design work usually precedes construction by six to twelve months.

How many extensions and loft conversions are actually being applied for?

English councils decided 33,500 householder applications in the first quarter of 2026, down 7% on the same quarter a year earlier, and granted 91% of them.

MHCLG defines householder developments as work to a residence requiring planning permission, "such as extensions, loft conversions and conservatories" [2]. That is about as close to a direct demand indicator as builders get.

Over the year to March 2026, 151,900 householder decisions were made, 51% of all district-level decisions, with 90% granted [2]. Total applications received in Q1 2026 fell 10% year on year to 79,600.

Source: MHCLG, Planning applications in England, January to March 2026 [2]

London is the outlier at 81% granted, nine points below the South West. If you build in London, refusal risk is a genuine sales objection and a genuine content opportunity.

Permitted development is the forgotten half of the picture. 5,200 prior approval applications were reported in Q1 2026, of which large householder extensions were 53%, with an overall acceptance rate of 81% [2]. Prior approval was not required for 2,700 of them.

That is small next to 33,500 full householder decisions, so most extension work still goes the ordinary route. It also confirms that "do I even need planning permission?" is a high-intent query most builder websites answer badly or not at all.

What do extensions and loft conversions cost in 2026?

Checkatrade's guides put a 20m² single storey extension at £48,000 and a dormer loft conversion at £50,000, with per-square-metre rates between roughly £920 and £2,170 depending on type.

Sources: Checkatrade extension cost guide, updated June 2026, and loft conversion cost guide, updated March 2026 [3][4]

Treat these as directional. Checkatrade builds cost guides from its own job data and supplier input rather than from a probability sample, and the spread on any single project is wide: the 20m² extension range runs £40,000 to £56,000 [3].

What they are useful for is calibration. If your quotes sit well above the published average, your marketing has to justify that before the quote lands, not after. Homeowners read these guides, and they are the reference point in the room whether you like it or not.

How many people search for this work, and when?

"Loft conversion" pulls around 11,000 UK searches a month and "builders near me" around 7,000, with cost queries close behind.

Source: Ahrefs Keywords Explorer, United Kingdom, August 2026 [7]

Two things stand out. Difficulty scores are absurdly low across the commercial terms: "kitchen extension" and "loft conversion cost" both sit at KD 1. Builders are not fighting each other for search visibility, they are mostly absent from it.

The highest CPC on the list is "extension builders near me" at $3.50 against only 800 searches a month, the classic shape of a high-intent, low-volume commercial query. Ahrefs reports UK CPCs in US dollars, so read these as relative signals rather than exact bid prices.

Seasonality is severe and predictable. Ahrefs volume history for "loft conversion" shows 13,266 searches in January 2026 against 8,582 in December 2025, a 1.55x swing, with the same pattern in January 2025 at 14,552 [7]. "Builders near me" runs the opposite shape, troughing at 4,821 in December 2025 and peaking at 7,464 in April 2026.

People dream about lofts in January and hire builders in spring. Flat spend across the year underspends both windows.

How long is the sales cycle on high-ticket domestic building work?

There is no clean published figure, but the mechanics put most extension and loft jobs at four to nine months from first search to first day on site.

Work the timeline forward. A January search, then weeks of gathering ideas and quotes, then a planning application that MHCLG says is decided within eight weeks or the agreed time in 93% of householder cases [2], then a build that Checkatrade puts at 10 to 12 weeks for a dormer or three to six months for an extension [3][4].

That gap between enquiry and cash is why builder marketing feels like it is not working when it is. A firm that switched on a website in February should not judge the result in April. A homeowner who enquired then went quiet is probably waiting on a planning decision or a mortgage, not lost.

The implication is that a builder's CRM matters more than their ad account. Yet only 24% of the UK businesses in the Houzz State of the Industry sample reported using marketing or CRM software in 2025, against 73% using accounting software and 46% using website building tools [6]. Advertising and marketing costs were the second most commonly cited rising expense, named by 40% of firms reporting higher costs.

Spending more on marketing whilst not tracking who enquired is a fairly precise description of the problem.

What is a building lead actually worth?

Nobody publishes a clean UK cost-per-lead figure for extension work, but the arithmetic is not subtle.

Take the Checkatrade average of £48,000 for a 20m² single storey extension [3]. Even on a modest margin, one won job is worth thousands in profit. A $3.50 click on "extension builders near me" [7] would need dozens of clicks per enquiry, and several enquiries per win, before the maths turned uncomfortable.

That is a structural advantage most domestic builders never use. High job value means you can afford to pay far more per lead than a boiler service, and to lose money on the first six months of any channel. It also means three or four quotes, every review checked, and weeks of deliberation. Cost per won job is the number that varies, and it is driven by trust signals rather than traffic.

Trust is measurably thin here. FMB and HomeOwners Alliance research published in the FMB's Licence to Build report found 47% of UK adults wrongly believe builders are already licensed, whilst only 32% expect builders to register with a government or regulatory body, 35% expect membership of a professional organisation like the FMB, and 39% think builders should have to pass competence tests to trade [9].

Most homeowners do not know what accreditation means, so displaying a logo is not enough. You have to explain what it proves.

How much do portfolio and photography matter?

No single UK study puts a number on it, but the search data makes the case indirectly and the Houzz trend data makes it loudly.

The 2026 Houzz UK Emerging Trends Report, published 3 June 2026 and comparing UK Houzz searches in January to March 2026 with the same period in 2025, found "Victorian extensions" up 130%, "broken plan" layouts up 36%, "under stairs pantries" up 3.5x, "exposed wooden beams" up 79% and "accessible bathrooms" up 5x [10].

Every one of those is a visual query. Nobody searches "Victorian extension" wanting a paragraph of text.

Ahrefs shows 2,000 UK monthly searches for "loft conversion ideas" and 800 for "house extension ideas" against 1,300 for "house extension cost" [7]. Inspiration demand and cost demand are roughly the same size, and cost is the one builders tend to answer.

The takeaway is unglamorous. A builder with fifteen properly photographed jobs, each with a short note on the property type, the problem and the solution, has an asset most competitors cannot match, ranks for long-tail project queries and closes better on the doorstep.

How do interest rates and house prices affect demand?

Both sit in the flat, unexciting territory that produces hesitation rather than collapse.

The Bank of England maintained Bank Rate at 3.75% at its meeting on 30 July 2026, unchanged from June [11]. Nationwide reported UK annual house price growth slowing to 1.8% in July 2026 from 2.2% in June, with prices up 0.1% month on month [12].

That combination is awkward for domestic building. Easier borrowing helps, but slow price growth undermines the "it will add value" argument that sells extensions to hesitant households.

The output data reflects it. ONS figures show total construction output fell 0.8% in May 2026, driven entirely by repair and maintenance, which fell 2.1%, with private housing repair and maintenance down 5.0% as the main contributor [8]. Three-monthly output was still up 1.6%, the third consecutive increase.

For scale, the FMB's July 2026 sector skills report puts the housing RMI market at £40.7bn in 2023, 18% of total construction output in Great Britain [13].

The market is large, mildly shrinking month to month, and dominated by spending homeowners can defer indefinitely. Demand generation beats demand capture, because the pool who have already decided to extend is shrinking.

How to read these numbers

Planning statistics are administrative counts, not surveys, so they are accurate about applications but silent about work needing no permission. Much internal renovation, kitchen and bathroom work never appears in them.

The FMB survey is a weighted panel of its own members, 493 of them, and members of a trade association are not a random sample of builders. Net balances are directional, not volumetric: a +22% balance means more firms reported rises than falls, not that workloads rose 22%.

The Houzz State of the Industry figures come from 145 businesses with Houzz profiles, a small self-selected sample skewed towards design-led, higher-value residential work.

Checkatrade cost guides come from job data and trade input rather than a statistical sample, and are updated at different times, which is why the extension guide's loft figures do not match the loft guide's exactly.

Ahrefs keyword volumes are modelled estimates built from clickstream data, not readings from Google. Reliable for relative comparison and seasonality, less so as absolute counts.

Finally, ONS monthly construction output is revised, sometimes substantially. A single month's 5.0% fall in private housing repair and maintenance is a signal, not a verdict.

What this means going into 2027

Householder planning volumes are drifting down, so builders relying on already-decided customers will feel it first. The firms that grow will be the ones creating demand from people who were only half considering it.

Search competition here is genuinely weak. Keyword difficulty of 1 to 18 on core extension and loft terms will not last forever, and the cost of entry in 2027 will be higher than in 2026.

Seasonality should drive budget allocation, not follow it. January inspiration searches and spring hiring searches are two audiences needing different content.

Photography is the cheapest durable advantage available. Visual search demand on Houzz UK is rising at double and triple-digit rates whilst most builder websites still show four blurry photos of the same conversion.

If rates fall further into 2027 without house prices accelerating, expect enquiry volumes to recover before job values do. Homeowners will return cautious and slower to commit, putting the pressure on follow-up and trust rather than lead volume. If you want help working out how findable your building business really is in search and AI answers, you can book a call with me.