- Companies
- Specialist contractors
- London
- Harlequin Swimming Pools Limited
Harlequin Swimming Pools Limited
- Company number
- 01482677
- Incorporated
- 4 Mar 198046 years trading
- Registered office
- 3RD Floor, 86 - 90 Paul Street, London, EC2A 4NE
- Nature of business
- Other specialised construction activities n.e.c.
Harlequin Swimming Pools Limited is a 46-year-old private limited company registered in London, company number 01482677, one of 4,318 specialist construction companies in London. 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 £43K (+25.6%) on the year before, to £210K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £596K against £381K owed within a year: 1.6 times cover.
- 21 employees 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £210K | £313K | £596K | £381K | 21 |
| 30 Nov 2024 | £167K | £346K | £720K | £563K | 21 |
| 30 Nov 2023 | £1.4M | £1.2M | £1.4M | £233K | 17 |
| 30 Nov 2022 | £1.7M | £1M | £1.2M | £214K | 16 |
| 30 Nov 2021 | £1.6M | £811K | £1.1M | £247K | 16 |
| 30 Nov 2020 | £1.4M | £657K | £824K | £167K | 16 |
| 30 Nov 2019 | £972K | £478K | £707K | £186K | 15 |
| 30 Nov 2018 | £825K | £542K | £647K | £194K | 13 |
| 30 Nov 2017 | £681K | £415K | £531K | £150K | |
| 30 Nov 2016 | £612K | £378K | £462K | £147K |
Where Harlequin Swimming Pools Limited is registered
The registered office is in London (EC2A), in the Hackney local authority area, London. Show EC2A 4NE on a map.
Other trade companies in EC2A
- Simlan Management LtdCleaning companies
- Renova Secure LtdBuilders
- Auraglasspartitions LtdGlaziers
- A2D Professional Cleaning LtdCleaning companies
- Matson Co. LtdProperty developers
- Paint Hub LimitedMechanics and garages
- SJK Construction & Management LtdBuilders
- Cenlora Cleaning Group LtdCleaning companies
Shared registered office
172 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 Harlequin Swimming Pools 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 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
- 01482677
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 March 1980 (46 years ago)
- Registered office
- 3RD Floor, 86 - 90 Paul Street, London, EC2A 4NE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 14 September 2026
- Charges (mortgages)
- 0 outstanding of 1 registered
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.
- Harmony Morgan Ltd2025
- Harrison Barratt Group Ltd2025
- Harrow Interior Solutions Ltd2022
- Harry Grover (Decorations) Limited1967
- Hart Logistics Forwarding & Logistics Ltd2018
- Harvi Interiors Ltd2017
- Has Prime Solutions Ltd2026
- Hassan Allam Construction UK Limited2024
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Harlequin Swimming Pools Limited's accounts due?
Harlequin Swimming Pools Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Harlequin Swimming Pools Limited'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 Harlequin Swimming Pools Limited still trading?
Harlequin Swimming Pools 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 Harlequin Swimming Pools Limited do?
Harlequin Swimming Pools Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Harlequin Swimming Pools Limited?
Harlequin Swimming Pools Limited was incorporated on 4 March 1980, 46 years ago.
What is the penalty if Harlequin Swimming Pools 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 Harlequin Swimming Pools 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.