- Companies
- Groundworks and demolition
- Rochester
- Coaj Site Services Ltd
Coaj Site Services Ltd
- Company number
- 09731937
- Incorporated
- 13 Aug 201511 years trading
- Registered office
- 12 Nashenden Lane, Rochester, Kent, ME1 3JQ
- Nature of business
- Site preparation
Coaj Site Services Ltd is a 11-year-old private limited company registered in Rochester, company number 09731937, one of 7 groundworks and demolition companies in Rochester. 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 up £24K (+253.8%) on the year before, to £34K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- 1 employee 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 | £34K | £35K | £0 | 1 | |
| 31 Aug 2024 | £9,541 | £7,585 | £0 | 1 | |
| 31 Aug 2023 | £8,898 | £6,942 | £0 | 1 | |
| 31 Aug 2022 | £7,956 | £6,000 | £0 | 1 | |
| 31 Aug 2021 | £1,150 | 1 | |||
| 31 Aug 2020 | £922 | £0 | £0 | 1 | |
| 31 Aug 2019 | £750 | £0 | £0 | 1 | |
| 31 Aug 2018 | £922 | £0 | £0 | ||
| 31 Aug 2017 | £1,904 | £2,135 | £0 | ||
| 31 Aug 2016 | £8,717 | £9,268 |
Where Coaj Site Services Ltd is registered
The registered office is in Rochester (ME1), in the Medway local authority area, South East. Show ME1 3JQ on a map.
Other trade companies in ME1
- Axis Site Solutions LtdCivil engineering
- Liyah Properties LimitedProperty developers
- Corner Four Solutions LtdSpecialist contractors
- Waydan LtdFinishing trades
- Newave Electrical Contractors LtdElectricians
- Jaggi Build Co LimitedBuilders
- Lilyeuk LtdMotor traders
- JWLR LimitedMachinery repair and installation
What happens if Coaj Site Services 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
- 09731937
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 August 2015 (11 years ago)
- Registered office
- 12 Nashenden Lane, Rochester, Kent, ME1 3JQ
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 12 August 2026
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Rochester
Other active groundworks and demolition companies registered in Rochester.
- First Site Surveying Limited2001
- Mikeomot Ltd2019
- Pankhurst Contracting Limited2016
- Plant Build UK Ltd2018
- SMH Scaffolding Ltd2015
- Castle Contract Builders Limited2001
All groundworks and demolition companies in Rochester · All trades in Rochester · Groundworks and demolition across the UK
Frequently asked questions
When are Coaj Site Services Ltd's accounts due?
Coaj Site Services 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 Coaj Site Services 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 Coaj Site Services Ltd still trading?
Coaj Site Services 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 Coaj Site Services Ltd do?
Coaj Site Services Ltd is registered under Site preparation (SIC 43120).
How old is Coaj Site Services Ltd?
Coaj Site Services Ltd was incorporated on 13 August 2015, 11 years ago.
What is the penalty if Coaj Site Services 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 Coaj Site Services 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.