- Companies
- Specialist contractors
- Cowbridge
- Keystone Consulting Engineers Limited
Keystone Consulting Engineers Limited
- Company number
- 07928682
- Incorporated
- 30 Jan 201214 years trading
- Registered office
- 5 Willow Walk, Cowbridge, South Glamorgan, CF71 7EE
- Nature of business
- Other specialised construction activities n.e.c.
Keystone Consulting Engineers Limited is a 14-year-old private limited company registered in Cowbridge, company number 07928682, one of 11 specialist construction companies in Cowbridge. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £16K (+16%) on the year before, to £115K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £436K against £324K owed within a year: 1.3 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 Mar 2025 | £115K | £342K | £436K | £324K | 3 |
| 31 Mar 2024 | £99K | £378K | £497K | £401K | 3 |
| 31 Mar 2023 | £83K | £162K | £220K | £139K | 3 |
| 31 Mar 2022 | £91K | £216K | £354K | £266K | 3 |
| 31 Mar 2021 | £90K | £294K | £206K | 2 | |
| 31 Mar 2020 | £76K | £160K | £83K | 2 | |
| 31 Mar 2019 | £97K | £227K | £131K | ||
| 31 Mar 2018 | £83K | £241K | £159K | ||
| 31 Mar 2017 | £80K | £422K | £343K | ||
| 31 Mar 2016 | £261K | £195K | £339K | £80K |
Who runs and owns Keystone Consulting Engineers Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| J*** M*** | Director | Feb 2012 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| Y*** J*** | Director | Jan 2012 | Jan 2012 |
People with significant control (2)
Where Keystone Consulting Engineers Limited is registered
The registered office is in Cowbridge (CF71), in the Vale of Glamorgan local authority area, Wales. Show CF71 7EE on a map.
Other trade companies in CF71
- Matrix Window Services LimitedCleaning companies
- Urban Recreation LtdSpecialist contractors
- Dljames Roofing LtdRoofers
- Cwi (Neath) LimitedProperty developers
- PM Properties 1 LtdBuilders
- Autoworx Repair Centre LtdMechanics and garages
- TL Safety Services LtdMachinery repair and installation
- Vale Motorcycles LtdMotor traders
Also registered at this address
8 other companies use the same registered office as Keystone Consulting Engineers Limited.
- CBW Flooring Supplies LimitedFloor and wall tilers
- Cygnus Airconditioning LimitedPlumbers and heating engineers
- Cygnus HV & Electrical LimitedMachinery repair and installation
- Easicook Catering Equipment LtdMachinery repair and installation
- Lewis Homes (South Wales) LimitedBuilders
- Lewis Homes (Woodlands Green) LimitedProperty developers
- SJB Car Sales LtdMotor traders
- T J Service Centre LimitedMechanics and garages
What happens if Keystone Consulting Engineers 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 07928682
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 January 2012 (14 years ago)
- Registered office
- 5 Willow Walk, Cowbridge, South Glamorgan, CF71 7EE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 28 January 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 Cowbridge
Other active specialist construction companies registered in Cowbridge.
- Mark Godwin Bricklaying Contractors Limited2002
- Standby Construction Limited2005
- Trivett Contracting Ltd2024
- Urban Recreation Ltd2026
- C L M Construction Limited1990
- Clear Construct Limited2012
- Clive Edwards Contracts Ltd2013
- Eryr Properties Ltd2021
All specialist construction companies in Cowbridge · All trades in Cowbridge · Specialist contractors across the UK
Frequently asked questions
When are Keystone Consulting Engineers Limited's accounts due?
Keystone Consulting Engineers Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Keystone Consulting Engineers Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Keystone Consulting Engineers Limited still trading?
Keystone Consulting Engineers 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 Keystone Consulting Engineers Limited do?
Keystone Consulting Engineers Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Keystone Consulting Engineers Limited?
Keystone Consulting Engineers Limited was incorporated on 30 January 2012, 14 years ago.
Who runs Keystone Consulting Engineers Limited?
Keystone Consulting Engineers Limited has 1 active director, the longest-serving appointed in Feb 2012. Their names and service addresses are on the Companies House register.
Who owns Keystone Consulting Engineers Limited?
2 people or companies have significant control of Keystone Consulting Engineers Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Keystone Consulting Engineers 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 Keystone Consulting Engineers 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.