- Companies
- Civil engineering
- Aberdeen
- Colin Johnstone Limited
Colin Johnstone Limited
- Company number
- SC415826
- Incorporated
- 31 Jan 201214 years trading
- Registered office
- Sunnyside Farmhouse Sunnyside Farm, Blairs, Aberdeen, Aberdeenshire, AB12 5YA
- Nature of business
- Construction of other civil engineering projects n.e.c.
Colin Johnstone Limited is a 14-year-old private limited company registered in Aberdeen, company number SC415826, one of 34 civil engineering contractors in Aberdeen. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £801 on the year before, to £848.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £65K against £65K 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, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £848 | £98 | £65K | £65K | 0 |
| 31 Jan 2024 | £47 | £2,171 | £58K | £59K | 0 |
| 31 Jan 2023 | £143 | £3,319 | £53K | £54K | 0 |
| 31 Jan 2022 | £747 | £51K | 0 | ||
| 31 Jan 2021 | £902 | £0 | £32K | £31K | 0 |
| 31 Jan 2020 | £1,227 | £5,173 | £19K | £17K | 0 |
| 31 Jan 2019 | £828 | £0 | £14K | £13K | |
| 31 Jan 2018 | £892 | £1,520 | £18K | £17K | |
| 31 Jan 2017 | £422 | £0 | £11K | £12K | |
| 31 Jan 2016 | £235 | £1,151 | £9,668 | £11K |
Where Colin Johnstone Limited is registered
The registered office is in Aberdeen (AB12), in the Aberdeenshire local authority area, Scotland. Show AB12 5YA on a map.
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- NDS Access. LtdCleaning companies
- Control Valve Support LtdMachinery repair and installation
- Emr Homeservice LimitedPlumbers and heating engineers
- Macgregor Fabrications LtdSpecialist contractors
- Wke LtdMachinery repair and installation
- Joshconstruction&Metal LimitedSpecialist contractors
What happens if Colin Johnstone 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- SC415826
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 January 2012 (14 years ago)
- Registered office
- Sunnyside Farmhouse Sunnyside Farm, Blairs, Aberdeen, Aberdeenshire, AB12 5YA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 3 February 2026
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 Aberdeen
Other active civil engineering contractors registered in Aberdeen.
- Fraser A Consulting Ltd2024
- FW Environmental Services Ltd2025
- Gaoth Energies Limited2023
- Gjbinnovations Ltd2016
- Glome Services Limited2021
- Grampian Utility Services Ltd2026
- Impressive Engineering Limited2011
- J Morrison Engineering Ltd2016
All civil engineering contractors in Aberdeen · All trades in Aberdeen · Civil engineering across the UK
Frequently asked questions
When are Colin Johnstone Limited's accounts due?
Colin Johnstone Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Colin Johnstone Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Colin Johnstone Limited still trading?
Colin Johnstone 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 Colin Johnstone Limited do?
Colin Johnstone Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Colin Johnstone Limited?
Colin Johnstone Limited was incorporated on 31 January 2012, 14 years ago.
What is the penalty if Colin Johnstone 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 Colin Johnstone 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.