- Companies
- Civil engineering
- Oxted
- Fission Engineering Limited
Fission Engineering Limited
- Company number
- 05839333
- Incorporated
- 7 Jun 200620 years trading
- Registered office
- 20 Westlands Way, Oxted, Surrey, RH8 0ND
- Nature of business
- Construction of other civil engineering projects n.e.c.
Fission Engineering Limited is a 20-year-old private limited company registered in Oxted, company number 05839333, one of the UK's civil engineering contractors. 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 £1,907 (-27.3%) on the year before, to £5,082.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 | £5,082 | £6 | £310 | 0 | |
| 31 Aug 2024 | £6,989 | £7,497 | £508 | 0 | |
| 31 Aug 2023 | £9,938 | £9,881 | £500 | 0 | |
| 31 Aug 2022 | £14K | £20K | £7,850 | 0 | |
| 31 Aug 2021 | £5,910 | £25K | £10K | 0 | |
| 31 Aug 2020 | -£1,318 | £25K | £18K | 0 | |
| 31 Aug 2019 | £14K | £26K | £17K | ||
| 31 Aug 2018 | £5,503 | £16K | £13K | ||
| 31 Aug 2017 | £6,846 | £18K | £14K | ||
| 31 Aug 2016 | £2,102 | £6,741 | £12K |
Who runs and owns Fission Engineering Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| J*** W*** | Director | Aug 2006 |
| P*** M*** | Secretary | Aug 2010 |
3 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| A*** S*** | Secretary | Jun 2006 | Aug 2006 |
| Peter Hodgson & Co Limited | Secretary (company) | Aug 2006 | Aug 2010 |
| C*** C*** | Director | Jun 2006 | Aug 2006 |
Person with significant control
Where Fission Engineering Limited is registered
The registered office is in Oxted (RH8), in the Tandridge local authority area, South East. Show RH8 0ND on a map.
Other trade companies in RH8
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- Top Supply LtdMotor traders
- All Colour Rendering LtdBuilders
- NJJL Consulting LtdMotor traders
- Arcus Park Burgess Hill LimitedProperty developers
- Sure Thing Scaffolding LimitedScaffolders
- Apps Outdoor Services LimitedLandscapers and gardeners
- Blank Slate Group LimitedCleaning companies
Also registered at this address
8 other companies use the same registered office as Fission Engineering Limited.
- Arl Construction (2017) LtdInstallers
- Charman Gardening LtdLandscapers and gardeners
- Crowhurst Marine LtdMachinery repair and installation
- P.K. Slack LimitedElectricians
- Simon R Fowler LtdSpecialist contractors
- Synergy Home & Garden Solutions LtdLandscapers and gardeners
- Wistwell LtdJoiners and carpenters
- XJS (GRP) Boat Repairs LtdMachinery repair and installation
What happens if Fission Engineering 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 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
- 05839333
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 June 2006 (20 years ago)
- Registered office
- 20 Westlands Way, Oxted, Surrey, RH8 0ND
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 7 June 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 Oxted
Other active civil engineering contractors registered in Oxted.
All civil engineering contractors in Oxted · All trades in Oxted · Civil engineering across the UK
Frequently asked questions
When are Fission Engineering Limited's accounts due?
Fission Engineering Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Fission Engineering Limited'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 Fission Engineering Limited still trading?
Fission Engineering 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 Fission Engineering Limited do?
Fission Engineering Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Fission Engineering Limited?
Fission Engineering Limited was incorporated on 7 June 2006, 20 years ago.
Who runs Fission Engineering Limited?
Fission Engineering Limited has 1 active director, the longest-serving appointed in Aug 2006. Their names and service addresses are on the Companies House register.
Who owns Fission Engineering Limited?
One person or company has significant control of Fission Engineering Limited: an individual (owns 50% to 75% of the shares).
What is the penalty if Fission Engineering 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 Fission Engineering 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.