- Companies
- Groundworks and demolition
- Rochester
- Castle Contract Builders Limited
Castle Contract Builders Limited
- Company number
- 04278496
- Incorporated
- 29 Aug 200125 years trading
- Registered office
- 365 High Street, Rochester, ME1 1DA
- Nature of business
- Site preparation; Plumbing, heat and air-conditioning installation; Painting; Other building completion and finishing
Castle Contract Builders Limited is a 25-year-old private limited company registered in Rochester, company number 04278496, one of 7 groundworks and demolition companies in Rochester. Its next accounts are due at Companies House on 26 May 2027, and the CT600 for the period to 26 August 2026 is due at HMRC on 26 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 £343K (+36.4%) on the year before, to £1.3M.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £1.3M against £182K owed within a year: 7.2 times cover.
- 3 employees 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 | £1.3M | £466K | £1.3M | £182K | 3 |
| 31 Aug 2024 | £942K | £258K | £1M | £134K | 3 |
| 31 Aug 2023 | £783K | £400K | £813K | £103K | 2 |
| 31 Aug 2022 | £716K | £375K | £710K | £83K | 2 |
| 31 Aug 2021 | £731K | £467K | £720K | £57K | 2 |
| 31 Aug 2020 | £657K | £425K | £687K | £93K | 2 |
| 31 Aug 2019 | £515K | £414K | £569K | £103K | 2 |
| 31 Aug 2018 | £509K | £402K | £592K | £129K | 2 |
| 31 Aug 2017 | £331K | £174K | £386K | £106K | 1 |
| 31 Aug 2016 | £223K | £29K | £265K | £89K |
Where Castle Contract Builders Limited is registered
The registered office is in Rochester (ME1), in the Medway local authority area, South East. Show ME1 1DA 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
Also registered at this address
1 other company uses the same registered office as Castle Contract Builders Limited.
- JSM Flooring LtdFloor and wall tilers
What happens if Castle Contract Builders 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 26 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 May 2027 to 26 Jun 2027 | £150 |
| 1 to 3 months late | 27 Jun 2027 to 26 Aug 2027 | £375 |
| 3 to 6 months late | 27 Aug 2027 to 26 Nov 2027 | £750 |
| More than 6 months late | From 27 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 27 Aug 2027 | £200 |
| 3 months late | 26 Nov 2027 | another £200 |
| 6 months late | 26 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 26 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
- 04278496
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 August 2001 (25 years ago)
- Registered office
- 365 High Street, Rochester, ME1 1DA
- Nature of business
- Site preparation (SIC 43120)
Plumbing, heat and air-conditioning installation (SIC 43220)
Painting (SIC 43341)
Other building completion and finishing (SIC 43390) - Year end
- 26 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 9 September 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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.
- Coaj Site Services Ltd2015
- First Site Surveying Limited2001
- Mikeomot Ltd2019
- Pankhurst Contracting Limited2016
- Plant Build UK Ltd2018
- SMH Scaffolding Ltd2015
All groundworks and demolition companies in Rochester · All trades in Rochester · Groundworks and demolition across the UK
Frequently asked questions
When are Castle Contract Builders Limited's accounts due?
Castle Contract Builders Limited's next accounts are due at Companies House by 26 May 2027 (in 225 days), covering the period to 26 August 2026.
When is Castle Contract Builders Limited's CT600 due?
The CT600 for the period to 26 August 2026 is due at HMRC by 26 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 27 May 2027.
Is Castle Contract Builders Limited still trading?
Castle Contract Builders 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 Castle Contract Builders Limited do?
Castle Contract Builders Limited is registered under Site preparation (SIC 43120); Plumbing, heat and air-conditioning installation (SIC 43220); Painting (SIC 43341); Other building completion and finishing (SIC 43390).
How old is Castle Contract Builders Limited?
Castle Contract Builders Limited was incorporated on 29 August 2001, 25 years ago.
What is the penalty if Castle Contract Builders 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 Castle Contract Builders 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.