opendata.bot
Company number
09557724

JOINED UP BUILDING LTD

Active
✓ Active company on the official register. Next accounts due 31 December 2026.

Company details

London, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
JOINED UP BUILDING LTD
Company number
09557724
Registered office
39 STREATHBOURNE ROAD, LONDON, SW17 8QZ, ENGLAND · 14 other companies at this postcode
Company type
Private Limited Company
Incorporated on
23 April 2015
Status
Active
Age
11 years
Nature of business (SIC)
41100 — Development of building projects
Accounts — next due
31 Dec 2026
Accounts — last made up to
31 Mar 2025
Confirmation statement — next due
19 Nov 2026
Confirmation statement — last
05 Nov 2025

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Mr Philip Sidney Smith
owns 25–50% of shares
Notified 06/04/2016
Mr Tomasz Krzysztof Mrozinski
owns 25–50% of shares
Notified 06/04/2016

Corporate structure

Who controls this company, and who they control in turn

2 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Mr Philip Sidney Smith
born 03/1966 · United Kingdom owns 25–50% of shares Notified 06/04/2016 Controls 4 companies
Mr Tomasz Krzysztof Mrozinski
born 07/1983 · England owns 25–50% of shares Notified 06/04/2016

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
06/04/2016 Person with significant control added Mr Tomasz Krzysztof Mrozinski
06/04/2016 Person with significant control added Mr Philip Sidney Smith

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2025FY2024
Net assets 837
▲ 17.0%
715
Employees (avg) 4 4

Documents for JOINED UP BUILDING LTD

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Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

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Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

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Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

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Data protection register

Registered with the Information Commissioner's Office as a data protection fee payer.

Joined Up Building Ltd — SW17 8QZ
Tier 1 · renews 21/04/2027
ICO entry

The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.

Get this company via API

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X-Api-Key: $OPENDATA_KEY
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Frequently asked questions

What is the company number of JOINED UP BUILDING LTD?
According to the official registry, the company number of JOINED UP BUILDING LTD is 09557724.
Where is JOINED UP BUILDING LTD registered?
The registered office is 39 STREATHBOURNE ROAD, LONDON, SW17 8QZ, ENGLAND.
What is the SIC code of JOINED UP BUILDING LTD?
The nature of business is recorded under SIC code 41100 — Development of building projects.
Who controls JOINED UP BUILDING LTD?
Mr Philip Sidney Smith is recorded as a person with significant control, and owns 25–50% of shares.
When are the next accounts of JOINED UP BUILDING LTD due?
The next annual accounts are due by 31 December 2026, and the last accounts were made up to 31 March 2025.

About JOINED UP BUILDING LTD (09557724)

JOINED UP BUILDING LTD is a private limited company incorporated on 23 April 2015 and registered in the United Kingdom under company number 09557724. Its registered office is at 39 STREATHBOURNE ROAD, LONDON, SW17 8QZ, ENGLAND. The recorded nature of business is development of building projects (SIC 41100). The company is currently active , with statutory accounts last made up to 31 March 2025. , and the person with significant control is Mr Philip Sidney Smith. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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