---
title: "KEYSTONE ESTATES LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/4e23ff95-268c-5d13-b4ba-cac42acf7928
json: https://whiteintel.dev/api/public/dossier/4e23ff95-268c-5d13-b4ba-cac42acf7928
identifier: oo:GB-COH-04803481
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# KEYSTONE ESTATES LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-04803481`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/4e23ff95-268c-5d13-b4ba-cac42acf7928  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/4e23ff95-268c-5d13-b4ba-cac42acf7928  

## Ownership & control

### Owners / controllers

- **Mrs Claire Jayne De Massey** (beneficial owner) — 50% — https://whiteintel.dev/entity/4ef6b282-4c20-5cba-8506-948b73999659
- **Michael Charles De Massey** (beneficial owner) — 50% — https://whiteintel.dev/entity/0cd9f1a6-e0b8-5cfb-ac50-1bb80cdd0d92
- **Michael Charles De Massey** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8562a025-d0f6-460a-b23c-3a47bf2f0d83
- **Mrs Claire Jayne De Massey** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/23af391d-c795-4ab4-b11e-abab4b1b46f9

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

A **4-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:** `04803481`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2003-06-18
- **Registered office:** Trafalgar House, 110 Manchester Road, Altrincham, Cheshire, WA14 1NU, England
- **SIC:** 68310

## Financials (Companies House accounts)

| Figure | 2025-09-30 |
|---|---:|
| Net assets | £347,756 |
| Cash | £28,547 |
| Shareholder funds | £100 |
| Fixed assets | £0 |
| Current assets | £130,078 |
| Employees | 0 |

_Latest filed period. Full 2-year history unlocks with a paid dossier — https://whiteintel.dev/pricing. As filed at Companies House._

### Officers

- DE MASSEY, Claire Jayne — secretary · appointed 2026-06-03
- DE MASSEY, Claire Jayne — director · British · appointed 2020-10-07
- DE MASSEY, Michael Charles — director · British · appointed 2003-07-16
- DE MASSEY, Rita — secretary · British · appointed 2003-07-16 · resigned 2026-06-03
- YORK PLACE COMPANY SECRETARIES LIMITED — corporate nominee secretary · appointed 2003-06-18 · resigned 2003-07-16
- YORK PLACE COMPANY NOMINEES LIMITED — corporate nominee director · appointed 2003-06-18 · resigned 2003-07-16

### Beneficial owners (Persons with Significant Control)

- Michael Charles De Massey — 25–50% shares · individual PSC · England — since 2016-04-06
- Mrs Claire Jayne De Massey — 25–50% shares · individual PSC · England — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/04803481
- companies_house_accounts — https://find-and-update.company-information.service.gov.uk/company/04803481/filing-history
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/04803481

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **KEYSTONE ESTATES LIMITED** — https://whiteintel.dev/entity/4e23ff95-268c-5d13-b4ba-cac42acf7928 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **KEYSTONE ESTATES LIMITED**. Human view: https://whiteintel.dev/entity/4e23ff95-268c-5d13-b4ba-cac42acf7928 · Structured JSON: https://whiteintel.dev/api/public/dossier/4e23ff95-268c-5d13-b4ba-cac42acf7928._

_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"._