- Companies
- Cleaning companies
- Newmarket
- Crystal Diamonds Ltd
Crystal Diamonds Ltd
- Company number
- 10511785
- Incorporated
- 6 Dec 20169 years trading
- Registered office
- 7 Laureate Paddocks, Newmarket, Suffolk, CB8 0AP
- Nature of business
- Other cleaning services
Crystal Diamonds Ltd is a 9-year-old private limited company registered in Newmarket, company number 10511785, one of 14 cleaning companies in Newmarket. Its next accounts are due at Companies House on 29 September 2027, and the CT600 for the period to 29 December 2026 is due at HMRC on 29 December 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 £4,530 on the year before, to £4,571.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £11K against £6,541 owed within a year: 1.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £4,571 | £11K | £6,541 | 2 | |
| 31 Dec 2024 | £41 | £5,717 | £5,950 | 2 | |
| 31 Dec 2023 | £90 | £17K | £17K | 2 | |
| 31 Dec 2022 | £437 | £12K | £12K | 2 | |
| 31 Dec 2021 | £204 | £12K | £6,908 | 2 | |
| 31 Dec 2020 | £212 | £7,962 | £8,615 | 2 | |
| 31 Dec 2019 | £1,713 | £7,268 | £6,708 | 2 | |
| 31 Dec 2018 | £60 | £2,230 | £3,708 | 1 | |
| 31 Dec 2017 | £22 | £2,561 | £2,539 | 1 |
Where Crystal Diamonds Ltd is registered
The registered office is in Newmarket (CB8), in the West Suffolk local authority area, East of England. Show CB8 0AP on a map.
Other trade companies in CB8
- Houndworks Property Maintenance LtdCleaning companies
- Ajm Carpentry & Construction LtdBuilders
- Gemland Automotive LimitedMechanics and garages
- Safi Autobody Shop LimitedMechanics and garages
- BC Plumbing & Heating Contractors LtdPlumbers and heating engineers
- Anglia Landscaping Group LimitedLandscapers and gardeners
- Zee Mobile Tyres LtdMotor traders
- Ajs Developments (Burwell) LimitedProperty developers
Shared registered office
45 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 Crystal Diamonds 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 29 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Sep 2027 to 29 Oct 2027 | £150 |
| 1 to 3 months late | 30 Oct 2027 to 29 Dec 2027 | £375 |
| 3 to 6 months late | 30 Dec 2027 to 29 Mar 2028 | £750 |
| More than 6 months late | From 30 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Dec 2027 | £200 |
| 3 months late | 29 Mar 2028 | another £200 |
| 6 months late | 29 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Dec 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
- 10511785
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 December 2016 (9 years ago)
- Registered office
- 7 Laureate Paddocks, Newmarket, Suffolk, CB8 0AP
- Nature of business
- Other cleaning services (SIC 81299)
- Year end
- 29 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 5 December 2025
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Newmarket
Other active cleaning companies registered in Newmarket.
- Denson Domestic Cleaning Services Limited2014
- HDC Cleaning Limited2022
- Houndworks Property Maintenance Ltd2026
- Jetshine Solutions Ltd2025
- JSL Strategy Ltd2026
- KCS Kris Cleaning Services Ltd2022
- Kinder Arsh Ltd2025
- Rothwells Cleaning Services Ltd2010
All cleaning companies in Newmarket · All trades in Newmarket · Cleaning companies across the UK
Frequently asked questions
When are Crystal Diamonds Ltd's accounts due?
Crystal Diamonds Ltd's next accounts are due at Companies House by 29 September 2027 (in 351 days), covering the period to 29 December 2026.
When is Crystal Diamonds Ltd's CT600 due?
The CT600 for the period to 29 December 2026 is due at HMRC by 29 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 September 2027.
Is Crystal Diamonds Ltd still trading?
Crystal Diamonds 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 Crystal Diamonds Ltd do?
Crystal Diamonds Ltd is registered under Other cleaning services (SIC 81299).
How old is Crystal Diamonds Ltd?
Crystal Diamonds Ltd was incorporated on 6 December 2016, 9 years ago.
What is the penalty if Crystal Diamonds 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 Crystal Diamonds 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.