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Built Cybernetics plc (BUC) fair value: what the stock is really worth

As of Sep 24, 2026: fair value of Built Cybernetics plc £0.02, price £0.02, upside -13.1%, quality 30 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.

  1. Fair value above price? No
  2. Good quality? No
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Industrials · GB

BC Thin data Sep 23, 2026

Built Cybernetics plc

BUC · LSE

Weak valuationQuality is weak on top of the rich price.

!Fair value £0.0152 · Overvalued (−13%)
!Quality 30/100
!Expensive Growth (revenue 5y +10.5 %/yr)
!Loss-making · -2.7% net margin (TTM)
!Low debt · negative free cash flow
!Trails peers (1/11)
!Narrow moat 17/100
!Evidence only low, so the estimate is less certain
!Weak on valuation: 16 out of 100

What runs behind every stock

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

£0.0280 £0.0085 Fair Value £0.0152 Jul 2021 Sep 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 23, 2026.

How to read this chart

60‑month range £0.0085 – £0.0280 · fair‑value band £0.0152 – £0.0167 · the £0.0175 price screens above the £0.0152 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 1 fiscal year is left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Sep 23, 2026.

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Company profile

Built Cybernetics plc, together with its subsidiaries, provides integrated professional design services in the United Kingdom and Turkey. It operates through United Kingdom Architecture, Torpedo Factory Group, Anders+Kern, ecoDriver, and Continental Europe segments.

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Built Cybernetics plc, together with its subsidiaries, provides integrated professional design services in the United Kingdom and Turkey. It operates through United Kingdom Architecture, Torpedo Factory Group, Anders+Kern, ecoDriver, and Continental Europe segments. The company offers architectural design services, including master planning, interior design, and fit-out capability under the Aukett Swanke brand; executive architectural delivery services under the Veretec brand; architect of record and project execution stage services; energy monitoring software, energy efficiency consulting services, and sensors and other hardware to monitor energy usage; and support and engineering services. It also engages in the distribution and installation of workplace technology; integration of smart building and AV systems; software development; design, supply, and installation of stage technology, stage engineering, and associated master systems; and non-trading activities. The company was formerly known as Aukett Swanke Group Plc and changed its name to Built Cybernetics plc in February 2025. Built Cybernetics plc was founded in 1906 and is based in London, the United Kingdom.

Stock analysis

Built Cybernetics plc (BUC) currently trades at £0.0175, while our model-based Fair Value estimate is £0.0152, implying the stock looks roughly 15.1% overvalued today.

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Valuation

How firm this estimate is: it rests on 5 models at a data quality of 95/100, which puts the evidence level at low.

Scenario range: £0.0152 (bear) to £0.0167 (bull), the price of £0.0175 sits above it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 30/100 (below-average quality), in the Industrials sector.

Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.

Built Cybernetics plc reported revenue of £20.1M in FY2025 versus £9.2M in FY2021, a compound +21.5%/yr. Reported net income was −£31.0K in FY2025.

Key figures

Market cap 6.2M GBX · P/S ratio 0.29 · Net margin −0.2% · Return on equity −20.7% · Return on assets (EBIT) −3.5% · Operating margin −3.9% · Revenue (TTM) £19.1M · Revenue growth (YoY) −5.7%.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 47 out of 100 (low confidence).

What moves the price

The share trades about 26% below its 52-week high and 25% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Industrials peers we cover trades at −31% fair-value upside, at −13%, BUC screens cheaper than that median.

Fair Value models

Bear £0.0152 Fair Value £0.0152 Bull £0.0167
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Highest evidence
Owner Earnings £0.0100 £0.0100 £0.0200 75
EV/EBITDA £0.0200 £0.0300 £0.0300 67
EV/EBIT n/a n/a £0.0100 61
All 4 models by family
DCF Models
Owner Earnings £0.0100 £0.0100 £0.0200 75
Multiples
EV/EBIT n/a n/a £0.0100 61
EV/EBITDA £0.0200 £0.0300 £0.0300 67
Asset-Based
NCAV (Graham) n/a n/a £0.0100 51

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Quality Score breakdown

Overall quality 30/100

Of which business quality 32 · Market factors (momentum, volatility) 45

Profitability 48
Margins and returns on capital today
Quality Growth 80
Are margins and returns improving?
Cashflow 8
Earnings quality: real cash, not paper profit
Fin. Strength 25
Balance sheet, leverage, solvency risk
Investment 41
Disciplined investing over empire-building
Low Volatility 75
Calm price path (market factor)
Momentum 38
Price trend over the last 3–12 months (market factor)
52W Momentum 23
Distance to the 52-week high (market factor)
Net Issuance 0
Share count: buybacks or dilution?

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Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 36/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
+1.7%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+32.4%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+10.5%
Start year 2020 (pandemic). Over 10 years: +1.7% a year
Revenue growth 40 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+4.6%
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
−7.3% (2020) → 0.6% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed

BUC screens 15% overvalued. Compare with Quanta Services, Inc →

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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Engineering & Construction · 840 stocks

Beats the industry median on 1/9 measures
Overall it trails its industry peers.
Valuation
Quality Score 30 · Bottom 25%
Fair Value upside −13% · Below median
Profitability
Return on assets −1% · Bottom 25%
Net margin (TTM) −3% · Bottom 25%
Operating margin (TTM) −4% · Bottom 25%
Growth and dividend
Revenue growth −6% · Below median
Balance sheet
Debt / equity 0.43× · Above median

Valuation Multiplesvs Engineering & Construction median · lower = cheaper

P/B 3.18× · book value is mostly goodwill ⓘGoodwill and other intangible assets are larger than the equity. The book value mainly reflects prices paid for past acquisitions, so we do not rank this P/B against the peer group.
P/S (TTM) 0.43× · Cheaper than median
EV/EBITDA 97.8× · Priciest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)16 · sector 29
FUTURE (revenue growth)0 · sector 11
PAST (return on equity)0 · sector 29
HEALTH (low debt)78 · sector 94
DIVIDEND (yield)0 · sector 40

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Engineering & Construction stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value
Quanta Services, Inc PWR $634.90 $163.08 −74%
Vinci SA DG €110.50 €185.62 +68%
Comfort Systems USA, Inc FIX $1,626 $1,122 −31%
Larsen & Toubro Limited LT ₹3,930 ₹1,994 −49%
Ferrovial N.V FER $56.30 $24.01 −57%
Samsung C&T Corporation 028260 367,000 KRW 256,792 KRW −30%
HOCHTIEF Aktiengesellschaft HOT €397.00 €203.87 −49%
ACS, Actividades de Construcción y Servicios, S.A ACS €92.75 €75.04 −19%
EMCOR Group EME $751.80 $521.87 −31%
MasTec, Inc MTZ $217.52 $106.05 −51%

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Cite: Fair Value Calculator (2026). "Built Cybernetics plc Fair Value". https://www.fairvalue-calculator.com/stock/BUC

Frequently asked questions

Is Built Cybernetics plc (BUC) overvalued or undervalued?
As of Sep 23, 2026, our model estimates a fair value of £0.0152 versus a price of £0.0175, about −13% upside (overvalued).
What is the fair value of BUC?
Our model-based fair value for Built Cybernetics plc is £0.0152 (as of Sep 23, 2026), built from audited fundamentals. The current price: £0.0175.
What is the quality score of BUC?
Built Cybernetics plc has a Quality Score of 30/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Built Cybernetics plc (BUC)?
Our model-based price target is the fair value of £0.0152 (as of Sep 23, 2026) from 4 valuation models. Cautious scenario £0.0152, optimistic scenario £0.0167. It is a calculation from audited fundamentals, not an analyst target.
What is the Built Cybernetics plc stock forecast for 2026?
Our models put fair value at £0.0152, about −13% upside versus a price of £0.0175 (overvalued). Cautious scenario £0.0152, optimistic scenario £0.0167. The calculation is refreshed regularly with new filings.
What is the revenue of Built Cybernetics plc (BUC)?
Built Cybernetics plc reported trailing-twelve-month revenue of about £19.1M (latest available figure, as of Sep 23, 2026).
What is the intrinsic value of Built Cybernetics plc (BUC)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Built Cybernetics plc it is £0.0152 per share (as of Sep 23, 2026), against a price of £0.0175. It is the blended result of 4 valuation models (cash flow, earnings, asset, dividend).
Is Built Cybernetics plc stock overvalued or undervalued in 2026?
As of Sep 23, 2026, BUC trades above its calculated fair value: price £0.0175, fair value £0.0152, a gap of about −13% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of BUC?
No. The price is what the market pays today (£0.0175); the fair value is what the company's own numbers justify (£0.0152). For Built Cybernetics plc the two are £0.0023 per share apart. That gap is exactly why we show both numbers side by side.
How much is Built Cybernetics plc worth?
The market values Built Cybernetics plc at about 6.2M GBX (market capitalisation, as of Sep 23, 2026). Per share that is £0.0175; our models calculate a fair value of £0.0152 per share.
What do the bullish and bearish scenarios say about BUC?
Our models span a range for Built Cybernetics plc: cautious scenario £0.0152, base £0.0152, optimistic £0.0167 per share (as of Sep 23, 2026, price £0.0175). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Built Cybernetics plc (BUC)?
Balance-sheet figures for Built Cybernetics plc (as of Sep 23, 2026): return on equity −20.7%, debt of 0.43 per unit of equity. They feed the Quality Score of 30/100, which measures business quality independently of the share price.
How far is BUC from its 52-week high?
Built Cybernetics plc trades at £0.0175, about 26% below its 52-week high of £0.0235 and 25% above the low of £0.0140 (as of Sep 24, 2026). Distance from the high says nothing about value: that is what the fair value of £0.0152 is for.
Which stocks are comparable to Built Cybernetics plc?
From the same area (Industrials) we also value Quanta Services, Inc, Vinci SA, Comfort Systems USA, Inc, Larsen & Toubro Limited, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Built Cybernetics plc stock attractive at the current price?
The data as of Sep 23, 2026: price £0.0175, calculated fair value £0.0152 (−13%), Quality Score 30/100, from 4 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of BUC calculated?
We run Built Cybernetics plc through 4 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of £0.0152, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 14.0 % above its aggregate fair value. Built Cybernetics plc itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Built Cybernetics plc (BUC)?
The closing price on Sep 24, 2026 was £0.0175. Our model-based fair value is £0.0152, about −13% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Built Cybernetics plc right now?
The price sits above even our optimistic bull case (£0.0167). The favourable scenario is already priced in. The models converge in a tight band (£0.0152 to £0.0167), unusually little disagreement for a valuation. Evidence is limited here (fewer models, shorter history), so the fair value is a rougher estimate than usual.

Key figures of Built Cybernetics plc

How large is the market capitalisation of Built Cybernetics plc (BUC)?
The market capitalisation of Built Cybernetics plc is 6.2M GBX. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Built Cybernetics plc (BUC)?
The price-to-sales ratio of Built Cybernetics plc is 0.29 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What is the net margin of Built Cybernetics plc (BUC)?
The net margin of Built Cybernetics plc is −0.2% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Built Cybernetics plc (BUC)?
The return on equity (ROE) of Built Cybernetics plc is −20.7% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Built Cybernetics plc (BUC)?
On an EBIT basis the return on assets of Built Cybernetics plc is −3.5% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Built Cybernetics plc (BUC)?
The operating margin of Built Cybernetics plc is −3.9% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Built Cybernetics plc (BUC)?
Revenue at Built Cybernetics plc is growing −5.7% versus a year earlier (3y avg +32.4%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How much free cash flow does Built Cybernetics plc (BUC) generate?
The free cash flow of Built Cybernetics plc is −472K GBX (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Built Cybernetics plc (BUC) carry?
The net debt of Built Cybernetics plc is 962K GBX (fiscal year 2025). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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