- Companies
- Civil engineering
- Lanark
- Advanced Tar Stone Limited
Advanced Tar Stone Limited
- Company number
- SC491821
- Incorporated
- 24 Nov 201411 years trading
- Registered office
- 2 & 6 Wellgatehead, Lanark, Lanarkshire, ML11 9AA
- Nature of business
- Construction of roads and motorways
Advanced Tar Stone Limited is a 11-year-old private limited company registered in Lanark, company number SC491821, one of 20 civil engineering contractors in Lanark. Companies House shows its accounts as overdue: they were due on 31 August 2026.
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 £4,032 (-12.1%) on the year before, to £29K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £24K against £10K owed within a year: 2.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | £29K | £24K | £10K | 1 | |
| 30 Nov 2023 | £33K | £28K | £15K | 1 | |
| 30 Nov 2022 | £31K | £40K | £22K | 1 | |
| 30 Nov 2021 | £17K | £58K | £9,669 | 1 | |
| 30 Nov 2020 | £42K | £55K | £26K | 1 | |
| 30 Nov 2019 | £11K | £13K | £9,668 | 1 | |
| 30 Nov 2018 | £29K | £37K | £22K | ||
| 30 Nov 2017 | £40K | £49K | £19K | ||
| 30 Nov 2016 | £43K | £50K | |||
| 30 Nov 2015 | £39K | £50K | £51K | £18K |
Who runs and owns Advanced Tar Stone Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| W*** M*** | Director | Nov 2014 |
Person with significant control
Where Advanced Tar Stone Limited is registered
The registered office is in Lanark (ML11), in the South Lanarkshire local authority area, Scotland. Show ML11 9AA on a map.
Other trade companies in ML11
- Sterling Renewables Projects LimitedElectricians
- Ejp Kitchens & Bathrooms LtdJoiners and carpenters
- J Frood Double Glazing LtdGlaziers
- Duchray Holdings LimitedSpecialist contractors
- RM Offshore LtdInstallers
- Fletcher Groundworks LimitedInstallers
- Beechtreewright LtdBuilders
- Blackwood Electrical Services LtdElectricians
Also registered at this address
3 other companies use the same registered office as Advanced Tar Stone Limited.
- Casa DM LimitedProperty developers
- D.M. Building Contractors LtdJoiners and carpenters
- Valleytech LtdPlumbers and heating engineers
What happens if Advanced Tar Stone Limited files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2026 to 30 Sep 2026 | £150 |
| 1 to 3 months late | 1 Oct 2026 to 30 Nov 2026 | £375 |
| 3 to 6 months late | 1 Dec 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2027 | 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
- SC491821
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 November 2014 (11 years ago)
- Registered office
- 2 & 6 Wellgatehead, Lanark, Lanarkshire, ML11 9AA
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 24 November 2025
- Previous names
- Advanced Tar Store Limited (until 22 Dec 2014)
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 Lanark
Other active civil engineering contractors registered in Lanark.
- Andrew Maclean Design and Construction Management Limited2013
- Asd Civils Limited2019
- Asd Group Scotland Ltd2025
- C&F Network Solutions Ltd2024
- DG Mechanical Electrical Services Ltd2023
- DJH Water Services Ltd2025
- E&C Surfacing Ltd2026
- Infinity Wind Limited2025
All civil engineering contractors in Lanark · All trades in Lanark · Civil engineering across the UK
Frequently asked questions
When are Advanced Tar Stone Limited's accounts due?
Advanced Tar Stone Limited's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is Advanced Tar Stone Limited's CT600 due?
The CT600 for the period to 30 November 2025 is due at HMRC by 30 November 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2026.
Is Advanced Tar Stone Limited still trading?
Advanced Tar Stone Limited is listed as active on the Companies House register (checked 13 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 Advanced Tar Stone Limited do?
Advanced Tar Stone Limited is registered under Construction of roads and motorways (SIC 42110).
How old is Advanced Tar Stone Limited?
Advanced Tar Stone Limited was incorporated on 24 November 2014, 11 years ago.
Who runs Advanced Tar Stone Limited?
Advanced Tar Stone Limited has 1 active director, the longest-serving appointed in Nov 2014. Their names and service addresses are on the Companies House register.
Who owns Advanced Tar Stone Limited?
One person or company has significant control of Advanced Tar Stone Limited: an individual (owns 75% or more of the shares).
What is the penalty if Advanced Tar Stone 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 Advanced Tar Stone Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.