- Companies
- Specialist contractors
- Portsmouth
- City Damp Solutions Ltd
City Damp Solutions Ltd
- Company number
- 11075716
- Incorporated
- 22 Nov 20178 years trading
- Registered office
- 350-352 London Road, Portsmouth, PO2 9JY
- Nature of business
- Other specialised construction activities n.e.c.
City Damp Solutions Ltd is a 8-year-old private limited company registered in Portsmouth, company number 11075716, one of 193 specialist construction companies in Portsmouth. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 up £74K (+31.1%) on the year before, to £310K.
- Net assets rose in 7 of 7 year-on-year comparisons on record.
- Current assets of £353K against £53K owed within a year: 6.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £310K | £353K | £53K | 2 | |
| 30 Nov 2024 | £237K | £291K | £58K | 2 | |
| 30 Nov 2023 | £146K | £237K | £97K | 2 | |
| 30 Nov 2022 | £93K | £153K | £68K | 2 | |
| 30 Nov 2021 | £58K | £120K | £55K | 2 | |
| 30 Nov 2020 | £38K | £60K | £37K | 2 | |
| 30 Nov 2019 | £27K | £31K | £23K | ||
| 30 Nov 2018 | £9,948 | £2,197 | £6,472 |
Where City Damp Solutions Ltd is registered
The registered office is in Portsmouth (PO2), in the Portsmouth local authority area, South East. Show PO2 9JY on a map.
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- LLPG Carpentry LtdBuilders
- Xyz Developments LtdProperty developers
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- Manila Haulage LtdMechanics and garages
Shared registered office
54 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if City Damp Solutions 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 11075716
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 November 2017 (8 years ago)
- Registered office
- 350-352 London Road, Portsmouth, PO2 9JY
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 21 November 2025
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 Portsmouth
Other active specialist construction companies registered in Portsmouth.
- Cladiatorz Limited2022
- Clear Contracting Solutions Limited2025
- Coastal Building Solutions Ltd2025
- Complete Formwork Solutions Ltd2011
- Custom Pools & Developments Limited2019
- D & L Builders Ltd2017
- D C Groundworks Limited2013
- D M Building & Restoration Ltd2012
All specialist construction companies in Portsmouth · All trades in Portsmouth · Specialist contractors across the UK
Frequently asked questions
When are City Damp Solutions Ltd's accounts due?
City Damp Solutions Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is City Damp Solutions Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is City Damp Solutions Ltd still trading?
City Damp Solutions 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 Damp Solutions Ltd do?
City Damp Solutions Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is City Damp Solutions Ltd?
City Damp Solutions Ltd was incorporated on 22 November 2017, 8 years ago.
What is the penalty if City Damp Solutions 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 Damp Solutions 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.