---
title: "HOUSE OF DESIGN ARCHITECTS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/30554e6e-2a9a-58a7-b319-032c705db8bc
json: https://whiteintel.dev/api/public/dossier/30554e6e-2a9a-58a7-b319-032c705db8bc
identifier: oo:GB-COH-12414666
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HOUSE OF DESIGN ARCHITECTS LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-12414666`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/30554e6e-2a9a-58a7-b319-032c705db8bc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/30554e6e-2a9a-58a7-b319-032c705db8bc  

## Ownership & control

### Owners / controllers

- **Mrs Maria Eugenia Turcan** (beneficial owner) — 50% — https://whiteintel.dev/entity/45f52acf-fd4a-5248-9869-64571a1a6e07
- **Mrs Lucia Sonsino** (beneficial owner) — 50% — https://whiteintel.dev/entity/8a01845f-544a-51ce-9674-aafbaad0dea3
- **Mrs Katharine Anne Purser** (beneficial owner) — 50% — https://whiteintel.dev/entity/b06c9079-76d6-55c6-b250-b6d18814d5d2
- **Mr Gideon John Lynch Purser** (beneficial owner) — 50% — https://whiteintel.dev/entity/4817ec88-eae3-5f93-9e87-6a81caa08150
- **Mr William Sonsino** (beneficial owner) — 50% — https://whiteintel.dev/entity/8c3b8cf6-7d92-5fa3-8309-b7f2915be277
- **Mr John Cheyne Turcan** (beneficial owner) — 50% — https://whiteintel.dev/entity/5b380b73-af0a-5f0b-aed3-c24d80a645de
- **Mr William Sonsino** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/956cc847-d976-4c2f-a0cb-124ea80d453c
- **Mr John Cheyne Turcan** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f14c1e3f-862f-412c-834d-23431eb5ae4b
- **Mr Gideon John Lynch Purser** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/ee408002-4d88-4388-806a-c48a24bc9e39
- **Mrs Lucia Sonsino** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/96fe5d35-1ed3-434e-a8ed-8bbebfc45ffd
- **Mrs Katharine Anne Purser** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/94090ba1-3074-4c0b-ab08-64234edfc09a
- **Mrs Maria Eugenia Turcan** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f47e9de3-30e6-4cba-818f-09e2891f3077

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

1. **Mrs Maria Eugenia Turcan** — beneficial owner 50% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mrs Lucia Sonsino** — beneficial owner 50% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mrs Katharine Anne Purser** — beneficial owner 50% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mr Gideon John Lynch Purser** — beneficial owner 50% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mr William Sonsino** — beneficial owner 50% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mr John Cheyne Turcan** — beneficial owner 50% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mr William Sonsino** — beneficial owner 37.5% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mr John Cheyne Turcan** — beneficial owner 37.5% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mr Gideon John Lynch Purser** — beneficial owner 37.5% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mrs Lucia Sonsino** — beneficial owner 37.5% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mrs Katharine Anne Purser** — beneficial owner 37.5% → *HOUSE OF DESIGN ARCHITECTS LIMITED*
1. **Mrs Maria Eugenia Turcan** — beneficial owner 37.5% → *HOUSE OF DESIGN ARCHITECTS LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `12414666`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-01-20
- **Registered office:** Unit 2d 36 Woodstock Grove, London, W12 8LE, England
- **SIC:** 71111

### Officers

- PURSER, Gideon John Lynch — secretary · appointed 2024-08-19
- PURSER, Katharine — secretary · appointed 2020-11-19
- SONSINO, Lucia — secretary · appointed 2020-11-19
- TURCAN, Maria Eugenia — secretary · appointed 2020-11-19
- PURSER, Gideon John Lynch — director · British · appointed 2020-01-20
- SONSINO, William — director · British · appointed 2020-01-20
- TURCAN, John Cheyne — director · Scottish · appointed 2020-01-20
- TURCAN, John Cheyne — secretary · appointed 2020-01-20 · resigned 2026-01-11

### Beneficial owners (Persons with Significant Control)

- Mrs Lucia Sonsino — 25–50% shares · individual PSC · England — since 2020-11-19
- Mrs Katharine Anne Purser — 25–50% shares · individual PSC · England — since 2020-11-19
- Mrs Maria Eugenia Turcan — 25–50% shares · individual PSC · England — since 2020-11-19
- Mr Gideon John Lynch Purser — 25–50% shares · individual PSC · England — since 2020-01-20
- Mr William Sonsino — 25–50% shares · individual PSC · England — since 2020-01-20
- Mr John Cheyne Turcan — 25–50% shares · individual PSC · England — since 2020-01-20

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12414666
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12414666

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HOUSE OF DESIGN ARCHITECTS LIMITED**. Human view: https://whiteintel.dev/entity/30554e6e-2a9a-58a7-b319-032c705db8bc · Structured JSON: https://whiteintel.dev/api/public/dossier/30554e6e-2a9a-58a7-b319-032c705db8bc._

_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"._