- Companies
- Specialist contractors
- Brentwood
- Adt Rail Ltd
Adt Rail Ltd
- Company number
- 10815614
- Incorporated
- 13 Jun 20179 years trading
- Registered office
- 37 Cornwall Road, Pilgrims Hatch, Brentwood, CM15 9LU
- Nature of business
- Other specialised construction activities n.e.c.
Adt Rail Ltd is a 9-year-old private limited company registered in Brentwood, company number 10815614, one of 114 specialist construction companies in Brentwood. 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.
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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 £4,518 (+68.4%) on the year before, to -£2,085.
- Net assets rose in 1 of 7 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 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£2,085 | £2,023 | 0 | ||
| 30 Jun 2024 | -£6,603 | £995 | 0 | ||
| 30 Jun 2023 | -£568 | £16K | £7,115 | 0 | |
| 30 Jun 2022 | £100 | £21K | £8,098 | 1 | |
| 30 Jun 2021 | £100 | £25K | £11K | 1 | |
| 30 Jun 2020 | £100 | £21K | £6,772 | 1 | |
| 30 Jun 2019 | £100 | £19K | £4,868 | 1 | |
| 30 Jun 2018 | £100 | £2,402 | £437 |
Where Adt Rail Ltd is registered
The registered office is in Brentwood (CM15), in the Brentwood local authority area, East of England. Show CM15 9LU on a map.
Other trade companies in CM15
- JJ Freeman Construction LtdGroundworks and demolition
- Sky Loft London LtdFinishing trades
- LDN Systems LtdRoofers
- LDN Traditional Roofing LtdRoofers
- Reactive Roofers LtdRoofers
- K.Fire.Safety LtdElectricians
- Elevation Roofing Group LimitedRoofers
- Krosshatch Creative Concepts LimitedProperty developers
What happens if Adt Rail 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 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
- 10815614
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 June 2017 (9 years ago)
- Registered office
- 37 Cornwall Road, Pilgrims Hatch, Brentwood, CM15 9LU
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 12 June 2026
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 Brentwood
Other active specialist construction companies registered in Brentwood.
- Aircool UK Limited2007
- Aja Steelworks Ltd2021
- Ajs French Polishing Limited2014
- Alpha Pumping Solutions Limited2020
- Amber Insulations Ltd2014
- Ap MD Construction Ltd2022
- Arch Consult Global Ltd2021
- Arealight Limited1986
All specialist construction companies in Brentwood · All trades in Brentwood · Specialist contractors across the UK
Frequently asked questions
When are Adt Rail Ltd's accounts due?
Adt Rail Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Adt Rail Ltd'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 Adt Rail Ltd still trading?
Adt Rail 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 Adt Rail Ltd do?
Adt Rail Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Adt Rail Ltd?
Adt Rail Ltd was incorporated on 13 June 2017, 9 years ago.
What is the penalty if Adt Rail 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 Adt Rail 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.