- Companies
- Civil engineering
- Folkestone
- Boleyn ST Limited
Boleyn ST Limited
- Company number
- 10458804
- Incorporated
- 2 Nov 20169 years trading
- Registered office
- 135 Church Road, Folkestone, Kent, CT20 3ER
- Nature of business
- Construction of other civil engineering projects n.e.c.
Boleyn ST Limited is a 9-year-old private limited company registered in Folkestone, company number 10458804, one of 27 civil engineering contractors in Folkestone. Its next accounts are due at Companies House on 28 August 2027, and the CT600 for the period to 28 November 2026 is due at HMRC on 28 November 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 £1,007 (-6.2%) on the year before, to -£17K.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- Current assets of £498K against £515K owed within a year: 1.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Nov 2025 | -£17K | £498K | £515K | 0 | |
| 28 Nov 2024 | -£16K | £490K | £506K | 0 | |
| 29 Nov 2023 | -£12K | £485K | £496K | 0 | |
| 28 Nov 2023 | -£12K | £485K | £496K | 0 | |
| 29 Nov 2022 | -£4,659 | £477K | £481K | 0 | |
| 29 Nov 2021 | £476K | £476K | 0 | ||
| 29 Nov 2020 | £442K | £442K | 0 | ||
| 29 Nov 2019 | £425K | £424K | 0 | ||
| 29 Nov 2018 | £392K | £391K | |||
| 29 Nov 2017 | £200 | £251K |
Where Boleyn ST Limited is registered
The registered office is in Folkestone (CT20), in the Folkestone and Hythe local authority area, South East. Show CT20 3ER on a map.
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- Kev Substation LtdBuilders
- PC Project Management LtdProperty developers
- Luxe Exterior Cleaning LtdCleaning companies
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- Sparks Carpentry & Construction LtdSpecialist contractors
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Also registered at this address
15 other companies use the same registered office as Boleyn ST Limited.
- Auto Diagnostics Centre LtdMechanics and garages
- Auto Economy Centre LtdMechanics and garages
- Craftwork Master Thatchers LtdRoofers
- East Kent Trim Supplies LtdMechanics and garages
- JT Construction & Utilities LtdCivil engineering
- Kam Plastering Contractors LimitedPlasterers
- LH Construction & Landscapes LtdBuilders
- Little Helpers (Southeast) LtdLandscapers and gardeners
- LLB Brickwork LtdSpecialist contractors
- Pag Welding LtdSpecialist contractors
- Pure Climate Solutions LimitedPlumbers and heating engineers
- Quickchill LtdMachinery repair and installation
- Richard A J Thompson LimitedPlumbers and heating engineers
- Stable Fire Protection LimitedMachinery repair and installation
- W B Brickwork Ltd.Builders
What happens if Boleyn ST 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 28 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Aug 2027 to 28 Sep 2027 | £150 |
| 1 to 3 months late | 29 Sep 2027 to 28 Nov 2027 | £375 |
| 3 to 6 months late | 29 Nov 2027 to 28 Feb 2028 | £750 |
| More than 6 months late | From 29 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Nov 2027 | £200 |
| 3 months late | 28 Feb 2028 | another £200 |
| 6 months late | 28 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Nov 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
- 10458804
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 November 2016 (9 years ago)
- Registered office
- 135 Church Road, Folkestone, Kent, CT20 3ER
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 November 2025
- Last confirmation statement
- 1 November 2025
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 Folkestone
Other active civil engineering contractors registered in Folkestone.
- Centuries Multi Services Limited2024
- Cgrkent Limited2025
- CJS Site Engineering Limited2007
- Corex Group Civils Ltd2026
- Dyrhoff Limited2005
- Elite Site Engineering Limited2006
- GSR Roadmarking Ltd2022
- Heritage Groundworks & Civils Ltd2026
All civil engineering contractors in Folkestone · All trades in Folkestone · Civil engineering across the UK
Frequently asked questions
When are Boleyn ST Limited's accounts due?
Boleyn ST Limited's next accounts are due at Companies House by 28 August 2027 (in 319 days), covering the period to 28 November 2026.
When is Boleyn ST Limited's CT600 due?
The CT600 for the period to 28 November 2026 is due at HMRC by 28 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 29 August 2027.
Is Boleyn ST Limited still trading?
Boleyn ST 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 Boleyn ST Limited do?
Boleyn ST Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Boleyn ST Limited?
Boleyn ST Limited was incorporated on 2 November 2016, 9 years ago.
What is the penalty if Boleyn ST 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 Boleyn ST 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.