- Companies
- Civil engineering
- Sidcup
- Sidneyrail Limited
Sidneyrail Limited
- Company number
- 10209370
- Incorporated
- 1 Jun 201610 years trading
- Registered office
- 12 Hatherley Road, Sidcup, Kent, DA14 4DT
- Nature of business
- Construction of railways and underground railways
Sidneyrail Limited is a 10-year-old private limited company registered in Sidcup, company number 10209370, one of 63 civil engineering contractors in Sidcup. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Sidneyrail LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £84 (-34.3%) on the year before, to £161.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £6,655 against £28K owed within a year: 0.2 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £161 | £5,372 | £6,655 | £28K | 2 |
| 30 Jun 2024 | £245 | £2,001 | £2,960 | £24K | 2 |
| 30 Jun 2023 | £80 | £3,284 | £4,492 | £25K | 3 |
| 30 Jun 2022 | £7,997 | £2,649 | £6,338 | £15K | 3 |
| 30 Jun 2021 | £75 | £1,723 | £1,723 | £12K | 3 |
| 30 Jun 2020 | £730 | £1 | £1 | £11K | 3 |
| 30 Jun 2019 | £1,259 | £16 | £16 | £11K | 3 |
| 30 Jun 2018 | £3,427 | £2,234 | £2,234 | £6,904 | 3 |
| 30 Jun 2017 | £1,688 | £4,231 | £4,231 | £12K | 2 |
Where Sidneyrail Limited is registered
The registered office is in Sidcup (DA14), in the Bexley local authority area, London. Show DA14 4DT on a map.
Other trade companies in DA14
- Evlor LtdElectricians
- Pfe Services LimitedElectricians
- CJM Property Services LimitedFinishing trades
- Top Local Trader LtdBuilders
- Bassett Electrical Group LimitedElectricians
- Flatline Flooring LtdFloor and wall tilers
- LDT Service's LimitedScaffolders
- Old Maidstone Road Hand Car Wash LtdMechanics and garages
Shared registered office
427 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 Sidneyrail 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 10209370
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 June 2016 (10 years ago)
- Registered office
- 12 Hatherley Road, Sidcup, Kent, DA14 4DT
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 31 May 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 Sidcup
Other active civil engineering contractors registered in Sidcup.
- Sigeng Ltd2017
- Sja Technical Services Limited2018
- South Surfacing Limited2025
- Sri P-Way Engineering Limited2015
- Thompson Welding & Construction Ltd2017
- Tickner Tracks Limited2016
- Track Air Consultants Limited2019
- Tydal Engineering Ltd2019
All civil engineering contractors in Sidcup · All trades in Sidcup · Civil engineering across the UK
Frequently asked questions
When are Sidneyrail Limited's accounts due?
Sidneyrail Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Sidneyrail Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Sidneyrail Limited still trading?
Sidneyrail 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 Sidneyrail Limited do?
Sidneyrail Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is Sidneyrail Limited?
Sidneyrail Limited was incorporated on 1 June 2016, 10 years ago.
What is the penalty if Sidneyrail 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 Sidneyrail 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.