---
title: "J.B. BUILDING & RENOVATION LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/084eab6f-e93a-4bc0-8a96-c72d0382741a
json: https://whiteintel.dev/api/public/dossier/084eab6f-e93a-4bc0-8a96-c72d0382741a
identifier: gb-coh:17016695
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# J.B. BUILDING & RENOVATION LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `gb-coh:17016695`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/084eab6f-e93a-4bc0-8a96-c72d0382741a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/084eab6f-e93a-4bc0-8a96-c72d0382741a  

## Ownership & control

### Owners / controllers

- **Mr Jakub Borowczak** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/305082d2-2016-40ef-992f-f70592b3c205

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

A **1-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:** `17016695`
- **Status:** Active
- **Type:** Private Limited Company
- **Incorporated:** 2026-02-06
- **Registered office:** 25 HAFOD CWNIN, CARMARTHEN, SA31 2AU
- **SIC:** 43320 - Joinery installation, 43330 - Floor and wall covering, 43390 - Other building completion and finishing

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/17016695

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **J.B. BUILDING & RENOVATION LTD**. Human view: https://whiteintel.dev/entity/084eab6f-e93a-4bc0-8a96-c72d0382741a · Structured JSON: https://whiteintel.dev/api/public/dossier/084eab6f-e93a-4bc0-8a96-c72d0382741a._

_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"._