- Companies
- Joiners and carpenters
- Southampton
- A. D. (Southern) Limited
A. D. (Southern) Limited
- Company number
- 07354554
- Incorporated
- 24 Aug 201016 years trading
- Registered office
- 105-107 Bitterne Road West, Southampton, SO18 1AU
- Nature of business
- Joinery installation
A. D. (Southern) Limited is a 16-year-old private limited company registered in Southampton, company number 07354554, one of 85 joinery companies in Southampton. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £355K (-155.8%) on the year before, to -£127K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £544K against £701K owed within a year: 0.8 times cover.
- 6 employees on average, up from 5 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | -£127K | £544K | £701K | 6 | |
| 31 Aug 2024 | £228K | £755K | £518K | 5 | |
| 31 Aug 2023 | £289K | £696K | £377K | 5 | |
| 31 Aug 2022 | £280K | £861K | £549K | 5 | |
| 31 Aug 2021 | £214K | £699K | £456K | 3 | |
| 31 Aug 2020 | £159K | £391K | £248K | 4 | |
| 31 Aug 2019 | £9,499 | £807K | £821K | 7 | |
| 31 Aug 2018 | £118K | £712K | £624K | 7 | |
| 31 Aug 2017 | £44K | £871K | £842K | ||
| 31 Aug 2016 | -£106K | £220K | £525K | £636K |
Public contracts won
A. D. (Southern) Limited has 6 public sector contract awards on record; the ones with their own published value total £520K, from 2020 to 2024. Source: Contracts Finder and Find a Tender award notices.
Awards by year
Main buyers
- University of Southampton6 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| University of Southampton | Long Term Maintenance for Halls (2024) - Wessex Lane External Works Package | £192K | 16 Jul 2024 |
| University of Southampton | B30 Lift Enabling Works | £38K | 8 Jan 2024 |
| University of Southampton | B13 Coffee Room Refurbishment | £68K | 11 Jul 2023 |
| University of Southampton | Connaught Halls - Kitchen Roof Repair Work | £33K | 6 May 2021 |
| University of Southampton | WorldPop Relocation - B39 Refurbishment | £33K | 29 Oct 2020 |
| University of Southampton | Building 17 Wind Tunnel Works and Alterations | £157K | 6 Feb 2020 |
Where A. D. (Southern) Limited is registered
The registered office is in Southampton (SO18), in the Southampton local authority area, South East. Show SO18 1AU on a map.
Other trade companies in SO18
- Nationwide Steelfixing LtdBuilders
- Terraline LimitedSpecialist contractors
- Omni Group Holdings LtdSpecialist contractors
- Zammit Property Developments LtdProperty developers
- Shotton Marine LtdMachinery repair and installation
- Amiri Mobile Mechanic LtdMechanics and garages
- Roofing Building & Maintenance LtdSpecialist contractors
- The Tidy Life LtdCleaning companies
What happens if A. D. (Southern) Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 07354554
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 August 2010 (16 years ago)
- Registered office
- 105-107 Bitterne Road West, Southampton, SO18 1AU
- Nature of business
- Joinery installation (SIC 43320)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 4 July 2026
- Previous names
- A. D. Carpentry (Southern) Limited (until 31 Jan 2012)
Filing notes for joinery companies
Joinery companies can carry stock and work in progress at the year end, especially bespoke workshop work, and that figure moves the profit for the year.
Similar companies in Southampton
Other active joinery companies registered in Southampton.
- Andy Harris Limited2003
- Angfit Limited2020
- Anro Renovations Ltd2015
- Apc Contracts Limited2018
- Apex Pro Carpentry Ltd2020
- Arrow Shopfitting Limited2026
- Benjamin1 Installations Limited2024
- C & E Carpentry Ltd2026
All joinery companies in Southampton · All trades in Southampton · Joiners and carpenters across the UK
Frequently asked questions
When are A. D. (Southern) Limited's accounts due?
A. D. (Southern) Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is A. D. (Southern) Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is A. D. (Southern) Limited still trading?
A. D. (Southern) Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does A. D. (Southern) Limited do?
A. D. (Southern) Limited is registered under Joinery installation (SIC 43320).
How old is A. D. (Southern) Limited?
A. D. (Southern) Limited was incorporated on 24 August 2010, 16 years ago.
Has A. D. (Southern) Limited won public sector contracts?
Yes. A. D. (Southern) Limited has 6 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £520K), most recently from UNIVERSITY OF SOUTHAMPTON.
What is the penalty if A. D. (Southern) Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View A. D. (Southern) Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.