---
title: "CSL DEVELOPMENTS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bae726b1-0eff-5f90-978c-a3db3fb08fea
json: https://whiteintel.dev/api/public/dossier/bae726b1-0eff-5f90-978c-a3db3fb08fea
identifier: oo:GB-COH-03451623
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CSL DEVELOPMENTS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-03451623`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bae726b1-0eff-5f90-978c-a3db3fb08fea  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bae726b1-0eff-5f90-978c-a3db3fb08fea  

## Ownership & control

### Owners / controllers

- **Mrs Sarah Louise Clark** (beneficial owner) — 50% — https://whiteintel.dev/entity/6d13bdba-6027-5e81-9155-557dccefa919
- **Mr John Mark Clark** (beneficial owner) — 100% — https://whiteintel.dev/entity/4f5816f9-91d3-545b-96dc-c672a7abe9bc
- **Mrs Sarah Louise Clark** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/c3bf2ae7-adf6-4625-b089-cbe4351f15fe
- **Mr John Mark Clark** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/9be02f44-1961-491f-93a1-957eb8d56f89
- **Mrs Sarah Louise Clark** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/cda3dfb0-1724-47bc-aa0b-456059ba0bab

### UBO chain (walk to the ultimate owner)

A **5-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `03451623`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1997-10-17
- **Registered office:** Unit 10 Anglo Business Park, Smeaton Close, Aylesbury, Buckinghamshire, HP19 8UP
- **SIC:** 28990

### Officers

- CLARK, Sarah Louise — secretary · British · appointed 2001-03-23
- CLARK, John Mark — director · British · appointed 1997-10-17
- CLARK, Sarah Louise — director · British · appointed 2023-10-05
- HOPKINS, Jeanette Eileen — secretary · British · appointed 1997-10-17 · resigned 2001-03-23
- CLARK, Richard — director · British · appointed 2015-10-05 · resigned 2020-02-11
- KAPLICZ, Shane Andrew — director · British · appointed 2017-10-16 · resigned 2024-12-31
- MCGOWAN SMYTH, Graham John — director · Irish · appointed 2003-12-15 · resigned 2011-02-01
- SANDERSON, Damian — director · British · appointed 2000-11-01 · resigned 2003-03-31

### Beneficial owners (Persons with Significant Control)

- Mrs Sarah Louise Clark — 25–50% shares · individual PSC — since 2026-06-02
- Mr John Mark Clark — 75–100% shares · individual PSC — since 2016-04-06
- Mrs Sarah Louise Clark — 25–50% shares · individual PSC — ceased 2026-06-01

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03451623
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03451623

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CSL DEVELOPMENTS LIMITED**. Human view: https://whiteintel.dev/entity/bae726b1-0eff-5f90-978c-a3db3fb08fea · Structured JSON: https://whiteintel.dev/api/public/dossier/bae726b1-0eff-5f90-978c-a3db3fb08fea._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._