BLACK DIAMOND BUILDERS LIMITED
💤Zombieactive
07367023 · ltd · incorporated 2010-09-06
Investment thesis
Zombie company — trading but stalled; unlikely mover.
Why interesting: Quiet, steady; could be a succession or carve-out candidate with the right conversation.
Why risky: No growth signal; thin margin for error on price.
🔒Estimated value
—
Upgrade to see
Turnover
—
year to Sept 2025
Net worth
—
book net assets
Opportunity
80/100
Exceptional
What this business does
Primary activity: SIC 99999
Sector: Extraterritorial bodies
Investor take
PursueActive trading company with a 64-year-old founder — textbook succession opportunity.
Opportunity 80/100 (exceptional), bankability 75/100. Strong seller-intent signal (70/100, director aged 64). Share purchase looks the cleaner deal structure. Biggest value-creation lever: Broaden director team. Sole director creates succession risk and reduces buyer comfort. Appoint a second director or strong #2. Most likely exit: share sale to pe / searcher (73/100).
Data confidence
Overall: medium (78/100)Adequate coverage. AI outputs are reliable for the sections scored high; verify the rest in diligence.
Company profile
address, 1 SIC codes, incorporation date
100
Financials
2 years of iXBRL accounts extracted (YoY deltas available) + narrative notes parsed
75
Lenders & charges
Confirmed no charges registered
85
Directors & officers
1 officers (1 active, 1 linked, 1 with DOB)
90
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
Network not yet resolved
30
Filing history
33 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
80/100Exceptional
PassWatchWorth a lookStrongExceptional
Strong composite across quality, acquirability, and risk. High-priority target — progress to serious diligence.
Business quality
70
Active, clean filings, stable charge profile.
Acquirability
80
Strong succession / seller-readiness signals.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.
Key financials
2 years extracted from filed iXBRL accountsCash
—
Net Worth
—
Current Assets
—
Current Liabilities
—
Hover to see exact values · click legend to toggle series
Financials
Extracted from Companies House accounts · FRS 102| Metric | 2025-09-30 | 2024-09-30 |
|---|
Amounts extracted automatically from iXBRL. Fields left blank were not reported or not mapped. Values in GBP unless stated.
Recent activity
Last 30 days
0
filings
Last 90 days
0
filings
Last 180 days
0
filings
Counts from Companies House filing history.
Corporate timeline (17 events)Click to expand
- 2025-10-30📄accounts-with-accounts-type-dormantaccounts · AA
- 2024-10-24📄accounts-with-accounts-type-dormantaccounts · AA
- 2023-10-25📄accounts-with-accounts-type-dormantaccounts · AA
- 2022-11-14📄accounts-with-accounts-type-dormantaccounts · AA
- 2021-10-21📄accounts-with-accounts-type-dormantaccounts · AA
- 2020-10-13📄accounts-with-accounts-type-dormantaccounts · AA
- 2019-11-06📄accounts-with-accounts-type-dormantaccounts · AA
- 2018-10-22📄accounts-with-accounts-type-dormantaccounts · AA
- 2017-10-23📄accounts-with-accounts-type-dormantaccounts · AA
- 2017-02-20📄accounts-with-accounts-type-dormantaccounts · AA
- 2015-10-19📄accounts-with-accounts-type-dormantaccounts · AA
- 2015-10-01📄annual-return-company-with-made-up-date-full-list-shareholdersannual-return · AR01
- 2015-03-11📄accounts-with-accounts-type-dormantaccounts · AA
- 2014-09-15📄annual-return-company-with-made-up-date-full-list-shareholdersannual-return · AR01
- 2014-05-12📄accounts-with-accounts-type-dormantaccounts · AA
- 2010-09-06🏢Company incorporatedAs BLACK DIAMOND BUILDERS LIMITED
- 2010-09-06➕HARRIS, Paul appointeddirector
Owner dependency
98/100
Critical — business is the founderThe business appears inseparable from the founder. Acquisition without a serious earn-out or meaningful transition period would likely destroy value.
FACTORS
- +Sole director: Only one active director — all governance concentrated on one person.
- +Long-tenure founder: Senior director has been in place 16 years — deep operational knowledge concentrated in one person.
- +Senior director age: Director aged approximately 64 — approaching natural succession window.
- +No director turnover: Company is 16 years old with no director changes — suggests a very tight-knit founder team never broadened.
Succession & seller-readiness
88/100
Likely off-market candidateStrong acquirability signals converging. Worth approaching directly — this is how off-market deals start.
SIGNALS
- primaryFounder aged 63+: Senior director is approximately 64. Approaching typical UK retirement age — succession thinking likely.
- primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
- secondary12+ year tenure: Director in role 16 years.
- secondaryStable-but-static management: Company is 16 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
cleanNo red flags detected from available public data. (This is not a clean bill of health — detailed accounts review still recommended.)
Shareholders & ownership
1 active beneficial owner · dominant holder ≥75%| Name | Shares | Voting rights | Nature of control | Notified |
|---|---|---|---|---|
Mr Paul Harris Individual · British · DOB 01/1962 · age 64 | 75–100% | 75–100% | board control75-100% shares · 75-100% voting · board control | 06/04/2016 |
From Companies House Persons with Significant Control filings. Share ranges are banded per the public PSC regime.
Similar companies
Active · Other · B postcode area| Company | Est. value | Turnover | Net worth | Staff | Age | Opp | Director |
|---|---|---|---|---|---|---|---|
| BIRMINGHAM CONTACT CENTRE LTD→ 13314116 · est 2021 · no financials extracted | — | — | — | — | 5y | — | — |
| BIRMINGHAM GRAB HIRE LIMITED→ 08289038 · est 2012 · no financials extracted | — | — | — | — | 13y | — | — |
| BIRMINGHAM LAW SOCIETY(THE)→ 00005188 · est 1870 · no financials extracted | — | — | — | — | 155y | — | — |
| BIRMINGHAM MECHANICAL SERVICES LIMITED→ 00910949 · est 1967 · no financials extracted | — | — | — | — | 58y | — | — |
| BIRMINGHAM METALLURGICAL ASSOCIATION(THE)→ 00164614 · est 1920 · no financials extracted | — | — | — | — | 106y | — | — |
| BIRMINGHAM SCHOOL OF ENGLISH LTD→ 13551629 · est 2021 · no financials extracted | — | — | — | — | 4y | — | — |
| BIRMINGHAM STORAGE LTD→ 15580043 · est 2024 · no financials extracted | — | — | — | — | 2y | — | — |
| BLACK FAMILY PRACTITIONERS NETWORK (BFPN) CIC→ 15806640 · est 2024 · no financials extracted | — | — | — | — | 1y | — | — |
| BLACKWELL COMMUNITY HALL CIC→ 13702421 · est 2021 · no financials extracted | — | — | — | — | 4y | — | — |
| BLAKEDOWN FUNERAL SERVICES LTD→ 09569031 · est 2015 · no financials extracted | — | — | — | — | 10y | — | — |
| BLAZE OF GLORY LIMITED→ 16423179 · est 2025 · no financials extracted | — | — | — | — | — | — | — |
| BLIGHTY MANUFACTURING LIMITED→ 13562538 · est 2021 · no financials extracted | — | — | — | — | 4y | — | — |
Peers ranked by estimated value, then turnover, then opportunity score.See all →
🔒Tailored diligence questions
7 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.
See pricing →Company details
Statusactive
Typeltd
Incorporated2010-09-06
Jurisdictionengland-wales
Primary SIC99999 — SIC 99999
Registered office
12a Oak Crescent
Tividale
Oldbury
West Midlands
B69 1RL
Filing status
Accounts
Next due: 2027-06-30
Last made up to: 2025-09-30
Confirmation statement
Next due: 2026-09-22
Last: 2025-09-08
Officers (1 active · 0 resigned)
HARRIS, Paul→
Activedirector · ~64y · appointed 2010-09-06
View their other companies + combined net worth →
Click a director name to see their full track record across all companies.
Recent filings (33 total)
accounts-with-accounts-type-dormant
accounts · AA
2025-10-30
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-09-12
accounts-with-accounts-type-dormant
accounts · AA
2024-10-24
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-09-09
accounts-with-accounts-type-dormant
accounts · AA
2023-10-25
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-09-08
accounts-with-accounts-type-dormant
accounts · AA
2022-11-14
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-09-09
accounts-with-accounts-type-dormant
accounts · AA
2021-10-21
confirmation-statement-with-updates
confirmation-statement · CS01
2021-09-15
accounts-with-accounts-type-dormant
accounts · AA
2020-10-13
confirmation-statement-with-updates
confirmation-statement · CS01
2020-09-08
accounts-with-accounts-type-dormant
accounts · AA
2019-11-06
confirmation-statement-with-updates
confirmation-statement · CS01
2019-09-09
accounts-with-accounts-type-dormant
accounts · AA
2018-10-22