- Companies
- Civil engineering
- Boston
- Diamond Playgrounds Ltd
Diamond Playgrounds Ltd
- Company number
- 09191747
- Incorporated
- 28 Aug 201412 years trading
- Registered office
- The Bungalow Ropers Lane, Sutterton, Boston, PE20 2HZ
- Nature of business
- Construction of other civil engineering projects n.e.c.
Diamond Playgrounds Ltd is a 12-year-old private limited company registered in Boston, company number 09191747, one of 17 civil engineering contractors in Boston. 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 £4,035 (-3%) on the year before, to £131K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £100K against £9,923 owed within a year: more than 10 times cover.
- 4 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 |
|---|---|---|---|---|---|
| 31 Aug 2025 | £131K | £100K | £9,923 | 4 | |
| 31 Aug 2024 | £135K | £131K | £16K | 4 | |
| 31 Aug 2023 | £101K | £84K | £3,755 | 5 | |
| 31 Aug 2022 | £91K | £113K | £19K | 6 | |
| 31 Aug 2021 | £51K | £80K | £18K | 2 | |
| 31 Aug 2020 | £29K | £41K | £9,079 | 2 | |
| 31 Aug 2019 | £50K | £48K | £13K | ||
| 31 Aug 2018 | £34K | £59K | £6,902 | ||
| 31 Aug 2017 | £24K | £61K | £11K | ||
| 31 Aug 2016 | £25K | £30K | £95K | £20K |
Where Diamond Playgrounds Ltd is registered
The registered office is in Boston (PE20), in the Boston local authority area, East Midlands. Show PE20 2HZ on a map.
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What happens if Diamond Playgrounds 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 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
- 09191747
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 August 2014 (12 years ago)
- Registered office
- The Bungalow Ropers Lane, Sutterton, Boston, PE20 2HZ
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 14 March 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Boston
Other active civil engineering contractors registered in Boston.
- East Anglian Piling (Boston) Limited2009
- Electrical Distribution Services Ltd2009
- Elevate Services Group Ltd2026
- JC Consultancy Limited2006
- Jdarail UK Limited2012
- Lightweight Components Engineering Ltd2012
- Lynx Engineers Limited2013
- Maddison Water Technology Limited2006
All civil engineering contractors in Boston · All trades in Boston · Civil engineering across the UK
Frequently asked questions
When are Diamond Playgrounds Ltd's accounts due?
Diamond Playgrounds Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Diamond Playgrounds Ltd'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 Diamond Playgrounds Ltd still trading?
Diamond Playgrounds 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 Diamond Playgrounds Ltd do?
Diamond Playgrounds Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Diamond Playgrounds Ltd?
Diamond Playgrounds Ltd was incorporated on 28 August 2014, 12 years ago.
What is the penalty if Diamond Playgrounds 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 Diamond Playgrounds 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.