Construction Materials Southern Ltd
- Company number
- 08805686
- Incorporated
- 6 Dec 201312 years trading
- Registered office
- Ground Floor Unit 2 East Horton Business Park, Knowle Lane, Fair Oak, Hampshire, SO50 7DZ
- Nature of business
- Construction of commercial buildings
Construction Materials Southern Ltd is a 12-year-old private limited company registered in Fair Oak, company number 08805686, one of the UK's building contractors. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £4,987 (-3.9%) on the year before, to -£134K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £950K against £1.1M owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- 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 Mar 2025 | -£134K | £1,029 | £950K | £1.1M | 1 |
| 31 Mar 2024 | -£129K | £367 | £942K | £1.1M | 1 |
| 31 Mar 2023 | -£167K | £85 | £945K | £1.1M | 1 |
| 31 Mar 2022 | -£159K | £4,779 | £965K | £1.1M | 2 |
| 31 Mar 2021 | -£158K | £4,779 | £959K | £1.1M | 2 |
| 31 Mar 2020 | -£125K | £10 | £871K | £996K | 2 |
| 31 Mar 2019 | -£1,494 | £10 | £945K | £946K | 11 |
| 31 Mar 2018 | £50K | £23K | £958K | £909K | 14 |
| 31 Mar 2017 | £40K | £29K | £824K | £784K | 13 |
| 31 Mar 2016 | £31K | £315 | £624K | £593K |
Who runs and owns Construction Materials Southern Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** P*** | Director | Oct 2017 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| R*** F*** | Director | Dec 2013 | Oct 2017 |
Person with significant control
Where Construction Materials Southern Ltd is registered
The registered office is in Fair Oak (SO50), in the Eastleigh local authority area, South East. Show SO50 7DZ on a map.
Other trade companies in SO50
- Chevron Homes LimitedBuilders
- Plymouth Construction & Roofing LtdRoofers
- Marley Roofing and Guttering LtdRoofers
- Gutter and Glass LimitedCleaning companies
- Zap Clean Systems LimitedCleaning companies
- Pro Spray Hampshire LtdPainters and decorators
- National Trusted Vehicles LtdMotor traders
- Kuji Service LtdMachinery repair and installation
Also registered at this address
1 other company uses the same registered office as Construction Materials Southern Ltd.
- Parsons Construction LimitedBuilders
What happens if Construction Materials Southern Ltd 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 08805686
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 December 2013 (12 years ago)
- Registered office
- Ground Floor Unit 2 East Horton Business Park, Knowle Lane, Fair Oak, Hampshire, SO50 7DZ
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 6 December 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies
Other active building contractors.
Frequently asked questions
When are Construction Materials Southern Ltd's accounts due?
Construction Materials Southern Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Construction Materials Southern Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Construction Materials Southern Ltd still trading?
Construction Materials Southern Ltd 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 Construction Materials Southern Ltd do?
Construction Materials Southern Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Construction Materials Southern Ltd?
Construction Materials Southern Ltd was incorporated on 6 December 2013, 12 years ago.
Who runs Construction Materials Southern Ltd?
Construction Materials Southern Ltd has 1 active director, the longest-serving appointed in Oct 2017. Their names and service addresses are on the Companies House register.
Who owns Construction Materials Southern Ltd?
One person or company has significant control of Construction Materials Southern Ltd: Parsons Construction Limited (owns 75% or more of the shares).
What is the penalty if Construction Materials Southern Ltd 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 Construction Materials Southern Ltd 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.