- Companies
- Specialist contractors
- London
- City South Construction Ltd
City South Construction Ltd
- Company number
- 06940851
- Incorporated
- 22 Jun 200917 years trading
- Registered office
- C/O Esdg Accountancy Ltd, 44 Royal Parade Mews, London, SE3 0TN
- Nature of business
- Other specialised construction activities n.e.c.
City South Construction Ltd is a 17-year-old private limited company registered in London, company number 06940851, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for City South Construction LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 up £52K (+19.4%) on the year before, to £321K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £833K against £508K owed within a year: 1.6 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £321K | £9,518 | £833K | £508K | 3 |
| 31 Dec 2023 | £268K | £297K | £623K | £323K | 4 |
| 31 Dec 2022 | £100K | £0 | £349K | £210K | 3 |
| 31 Dec 2021 | £10K | £13K | £132K | £79K | 3 |
| 31 Dec 2020 | £24K | £32K | £169K | £96K | 3 |
| 31 Dec 2019 | £75K | £466 | £175K | £102K | 3 |
| 31 Dec 2018 | £120K | £34K | £340K | £220K | 3 |
| 30 Jun 2017 | £10K | £99 | £161K | £153K | 2 |
| 30 Jun 2016 | £16K | £8,140 | £145K | £132K | |
| 30 Jun 2015 | £13K | £31K | £100K | £91K |
Where City South Construction Ltd is registered
The registered office is in London (SE3), in the Lewisham local authority area, London. Show SE3 0TN on a map.
Other trade companies in SE3
- Azaway LtdMotor traders
- Sunny Star Drylining LtdBuilders
- Lina Cleaning Services LtdCleaning companies
- J&J Property Works LtdJoiners and carpenters
- Nirvana Climate Solutions LtdPlumbers and heating engineers
- Akers Mep Services LtdPlumbers and heating engineers
- Pinewood Electrical LtdElectricians
- Zufc LtdCleaning companies
Also registered at this address
7 other companies use the same registered office as City South Construction Ltd.
- Can Do Scaffolding LtdScaffolders
- Jmpa Management LtdInstallers
- K & J Project Management Solutions LtdSpecialist contractors
- Lighten Up Electrical LtdElectricians
- Mzlondon LtdBuilders
- Puerta Cleaning Services LtdCleaning companies
- RSG Decorators (Kent) LimitedPainters and decorators
What happens if City South Construction 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 06940851
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 June 2009 (17 years ago)
- Registered office
- C/O Esdg Accountancy Ltd, 44 Royal Parade Mews, London, SE3 0TN
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 22 June 2026
- Previous names
- VT Systems Limited (until 11 Jan 2013)
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- City Waterproofing Ltd2024
- Civaris Ltd2026
- Civcon Ltd2013
- Civil Management Consult Limited2025
- Civil Utility Limited2026
- CJ Decorators Ltd2008
- CJM1 Solutions Ltd2026
- CK Welder Ltd2018
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are City South Construction Ltd's accounts due?
City South Construction Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is City South Construction Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is City South Construction Ltd still trading?
City South Construction 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 City South Construction Ltd do?
City South Construction Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is City South Construction Ltd?
City South Construction Ltd was incorporated on 22 June 2009, 17 years ago.
What is the penalty if City South Construction 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 City South Construction 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.