A.D. CALVERT ARCHITECTURAL STONE SUPPLIES LIMITED

🌳Matureactive
04113853 · ltd · incorporated 2000-11-24
Investment thesis
Well-run mature business — low negotiation leverage; premium likely.
Why interesting: Textbook target; clean filings, stable trading.
Why risky: No pressure on seller; any deal likely at full price.
Opportunity decay
hardening · 12-months
Already tight — no obvious softening catalysts on the horizon.
  • · Thesis: well-run, low negotiation leverage
🔒Estimated value
—
Upgrade to see
Turnover
—
not disclosed
Net worth
—
book net assets
Opportunity
75/100
Strong
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What this business does
Primary activity: SIC 08110
Sector: Mining & quarrying
ALSO REGISTERED FOR
  • 23990SIC 23990
Investor take
Pursue
Strong opportunity: active trading company with strong profile and bankable structure.

Opportunity 75/100 (strong), bankability 75/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Most likely exit: strategic trade sale (63/100).

Data confidence

Overall: medium (55/100)

Adequate coverage. AI outputs are reliable for the sections scored high; verify the rest in diligence.

Company profile
address, 2 SIC codes, incorporation date
100
Financials
No iXBRL financials extracted
0
Lenders & charges
Confirmed no charges registered
85
Directors & officers
7 officers (3 active, 7 linked, 2 with DOB)
76
Ownership & PSC
2 active PSC(s) of 2 total, 2 with control declared
90
Director network
2 connected companies via shared directors
51
Filing history
75 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
75/100Strong
PassWatchWorth a lookStrongExceptional 

Solid opportunity signal. Worth a dedicated memo and management meeting.

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
60
Some acquirability indicators.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.

Recent activity

Last 30 days
0
filings
Last 90 days
0
filings
Last 180 days
1
filing
  • • 1 confirmation-statement
Counts from Companies House filing history.
Corporate timeline (28 events)Click to expand
  1. 2025-07-18
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2024-06-17
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2023-10-26
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC01
  4. 2023-05-24
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2022-05-05
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2021-10-15
    📄
    change-person-director-company-with-change-date
    officers · CH01
  7. 2021-07-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2020-04-08
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2020-04-06
    📄
    change-to-a-person-with-significant-control
    persons-with-significant-control · PSC06
  10. 2019-09-05
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  11. 2019-03-26
    ➕
    CALVERT, Allison Jane appointed
    secretary
  12. 2019-03-26
    ➖
    REED, Peter Eric resigned
    secretary
  13. 2019-03-26
    📄
    appoint-person-secretary-company-with-name-date
    officers · AP03
  14. 2019-03-26
    📄
    termination-secretary-company-with-name-termination-date
    officers · TM02
  15. 2018-09-25
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  16. 2018-05-01
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  17. 2018-04-23
    ➕
    CALVERT, Allison Jane appointed
    director
  18. 2017-08-29
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  19. 2017-01-11
    📄
    capital-allotment-shares
    capital · SH01
  20. 2009-01-01
    ➕
    REED, Peter Eric appointed
    secretary
  21. 2008-12-31
    ➖
    FAWCETT, William John Metcalfe resigned
    secretary
  22. 2000-11-24
    🏢
    Company incorporated
    As A.D. CALVERT ARCHITECTURAL STONE SUPPLIES LIMITED
  23. 2000-11-24
    ➕
    CALVERT, Andrew Daniel appointed
    director
  24. 2000-11-24
    ➕
    FAWCETT, William John Metcalfe appointed
    secretary
  25. 2000-11-24
    ➕
    LONDON LAW SECRETARIAL LIMITED appointed
    corporate-nominee-secretary
  26. 2000-11-24
    ➖
    LONDON LAW SECRETARIAL LIMITED resigned
    corporate-nominee-secretary
  27. 2000-11-24
    ➕
    LONDON LAW SERVICES LIMITED appointed
    corporate-nominee-director
  28. 2000-11-24
    ➖
    LONDON LAW SERVICES LIMITED resigned
    corporate-nominee-director

Owner dependency

91/100
Critical — business is the founder

The business appears inseparable from the founder. Acquisition without a serious earn-out or meaningful transition period would likely destroy value.

FACTORS
  • +Two-director setup: Only two active directors — typical of owner-managed SMEs but limits succession.
  • +Founder name in company name: Company name contains director surname "CALVERT" — strong identity link between founder and business.
  • +Long-tenure founder: Senior director has been in place 25 years — deep operational knowledge concentrated in one person.
  • +Family involvement: Multiple officers share a surname — likely family business, which concentrates governance.

Succession & seller-readiness

66/100
Strong succession signal

Multiple signals suggest succession is on the horizon. Candidate for proactive outreach.

SIGNALS
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.
  • primary20+ year tenure: Director in role 25 years. Very long tenure is a classic succession signal.
  • secondaryStable-but-static management: Company is 25 years old and no new directors in the last 3 years — succession not yet being planned internally.
  • supportingClean filings + long tenure: Disciplined long-tenure operator — classic lifestyle-business pattern that often sells quietly.

Red flags

clean
No red flags detected from available public data. (This is not a clean bill of health — detailed accounts review still recommended.)

Shareholders & ownership

2 active beneficial owners · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
Andrew Daniel Calvert
Individual
75–100%
—board control75-100% shares · board control06/04/2016
Mrs Allison Jane Calvert
Individual · British · DOB 03/1972 · age 54
25–50%
—25-50% shares25/11/2016

From Companies House Persons with Significant Control filings. Share ranges are banded per the public PSC regime.

🔒Co-director network graph

Radial SVG graph showing every company connected via shared directors, colour-coded by status.

Available from the Pro tier upwards.

See pricing →

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Peers ranked by estimated value, then turnover, then opportunity score.See all →
🔒Tailored diligence questions

6 specific questions generated from this company's actual signals — liquidity, leverage, director age, charge count, red flags, age-of-company.

Available from the Pro tier upwards.

See pricing →
🔒Advanced scoring suite

Exit-route ranking, improvement thesis, quiet-distress detector, covenant-pressure proxy, extraction monitor, approaching triggers, ownership drift, local cluster, value trap, debt capacity, archetype classification — 48+ scoring modules.

Available from the Pro tier upwards.

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Company details

Statusactive
Typeltd
Incorporated2000-11-24
Jurisdictionengland-wales
Primary SIC08110 — SIC 08110

Registered office

The Stoneyard
Wensley Road
Leyburn
North Yorkshire
DL8 5ED
England

Filing status

Accounts
Next due: 2026-09-30
Last made up to: 2024-12-31
Confirmation statement
Next due: 2026-12-08
Last: 2025-11-24

Officers (3 active · 4 resigned)

CALVERT, Allison Jane→
secretary · appointed 2019-03-26
View their other companies + combined net worth →
Active
CALVERT, Allison Jane→
director · ~54y · appointed 2018-04-23
View their other companies + combined net worth →
Active
CALVERT, Andrew Daniel→
director · ~55y · appointed 2000-11-24
View their other companies + combined net worth →
Active
FAWCETT, William John Metcalfe→
secretary · appointed 2000-11-24 · resigned 2008-12-31
Resigned
REED, Peter Eric→
secretary · appointed 2009-01-01 · resigned 2019-03-26
Resigned
LONDON LAW SECRETARIAL LIMITED→
corporate-nominee-secretary · appointed 2000-11-24 · resigned 2000-11-24
Resigned
LONDON LAW SERVICES LIMITED→
corporate-nominee-director · appointed 2000-11-24 · resigned 2000-11-24
Resigned

Click a director name to see their full track record across all companies.

Recent filings (75 total)

confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-11-24
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-07-18
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-11-25
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-06-17
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-11-30
notification-of-a-person-with-significant-control
persons-with-significant-control · PSC01
2023-10-26
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-05-24
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-12-06
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-05-05
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-12-07
change-person-director-company-with-change-date
officers · CH01
2021-10-15
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-07-28
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-01-22
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-04-08
change-to-a-person-with-significant-control
persons-with-significant-control · PSC06
2020-04-06