- Companies
- Specialist contractors
- Carterton
- Coln River Construction Limited
Coln River Construction Limited
- Company number
- 10251853
- Incorporated
- 25 Jun 201610 years trading
- Registered office
- 31 Home Close, Carterton, OX18 3GQ
- Nature of business
- Other specialised construction activities n.e.c.
Coln River Construction Limited is a 10-year-old private limited company registered in Carterton, company number 10251853, one of 6 specialist construction companies in Carterton. 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 £4,899 (+13.8%) on the year before, to -£31K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £7,491 against £18K owed within a year: 0.4 times cover.
- 3 employees on average, up from -3 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | -£31K | £7,042 | £7,491 | £18K | 3 |
| 31 Aug 2024 | -£36K | £684 | £6,684 | £37K | -3 |
| 31 Aug 2023 | -£16K | £1,635 | £27K | £53K | -4 |
| 31 Aug 2022 | £9,321 | £77K | £80K | £34K | -2 |
| 31 Aug 2021 | -£59K | £12K | £16K | £35K | -2 |
| 31 Aug 2020 | -£91K | £28K | £59K | -2 | |
| 31 Aug 2019 | -£101K | £6,461 | £62K | -2 | |
| 31 Aug 2018 | -£51K | £11K | £25K | -2 | |
| 31 Aug 2017 | -£8,705 | £18K | £117K |
Where Coln River Construction Limited is registered
The registered office is in Carterton (OX18), in the West Oxfordshire local authority area, South East. Show OX18 3GQ on a map.
Other trade companies in OX18
- Roof Oxford LimitedBuilders
- MJ Iron & Earth Ltd.Machinery repair and installation
- King Groundwork & Landscaping LtdSpecialist contractors
- Delta London Decorate LtdPainters and decorators
- Hayes & Cole LimitedCivil engineering
- CW Construction Consultancy LtdBuilders
- 99 Problems LtdLandscapers and gardeners
- Pressed for Time Construction Cleaning LtdCleaning companies
Also registered at this address
5 other companies use the same registered office as Coln River Construction Limited.
- H & H Landscaping LimitedLandscapers and gardeners
- H&P Heating & Plumbing LimitedMachinery repair and installation
- Hond-R LimitedMechanics and garages
- Newbury Marble LimitedInstallers
- Rebel Wrench Mechanics LtdMechanics and garages
What happens if Coln River Construction 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 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
- 10251853
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 June 2016 (10 years ago)
- Registered office
- 31 Home Close, Carterton, OX18 3GQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 24 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 Carterton
Other active specialist construction companies registered in Carterton.
- King Groundwork & Landscaping Ltd2026
- Ox Renovate Ltd2015
- P.G. Hawkins Building Contractors Limited2017
- Rock-Venture Designs Limited2021
- T&C Floor Screeding Limited2022
All specialist construction companies in Carterton · All trades in Carterton · Specialist contractors across the UK
Frequently asked questions
When are Coln River Construction Limited's accounts due?
Coln River Construction Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Coln River Construction Limited'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 Coln River Construction Limited still trading?
Coln River Construction 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 Coln River Construction Limited do?
Coln River Construction Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Coln River Construction Limited?
Coln River Construction Limited was incorporated on 25 June 2016, 10 years ago.
What is the penalty if Coln River Construction 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 Coln River Construction 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.