- Companies
- Specialist contractors
- Bishop Auckland
- South Durham Structures Limited
South Durham Structures Limited
- Company number
- 01560481
- Incorporated
- 11 May 198145 years trading
- Registered office
- Dovecot Hill, South Church, Enterprise Park, Bishop Auckland, County Durham, DL14 6XR
- Nature of business
- Other specialised construction activities n.e.c.
South Durham Structures Limited is a 45-year-old private limited company registered in Bishop Auckland, company number 01560481, one of 31 specialist construction companies in Bishop Auckland. Companies House shows its accounts as overdue: they were due on 30 September 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 £254K (-22.3%) on the year before, to £885K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £665K against £391K owed within a year: 1.7 times cover.
- 30 employees 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 Sep 2024 | £885K | £205K | £665K | £391K | 30 |
| 31 May 2023 | £1.1M | £319K | £744K | £212K | 30 |
| 31 May 2022 | £1.1M | £192K | £746K | £294K | 30 |
| 31 May 2021 | £984K | £100K | £700K | £349K | 28 |
| 31 May 2020 | £967K | £308K | £651K | £338K | 28 |
| 31 May 2019 | £1M | £187K | £755K | £382K | 28 |
| 31 May 2018 | £1M | £130K | £627K | £267K | 22 |
| 31 May 2017 | £1.1M | £91 | £1.2M | £887K | 29 |
| 31 May 2016 | £1M | £137 | £756K | £448K | |
| 31 May 2015 | £1M | £250 | £961K | £679K |
Where South Durham Structures Limited is registered
The registered office is in Bishop Auckland (DL14), in the County Durham local authority area, North East. Show DL14 6XR on a map.
Other trade companies in DL14
- FJ Maintenance Ne LtdSpecialist contractors
- MTS Electrics LtdElectricians
- TMRC LtdSpecialist contractors
- Bishop Car Wash LtdCleaning companies
- Victory Roofing LtdRoofers
- Rend-Pro North East LimitedProperty developers
- Vickers Detailing LimitedCleaning companies
- Orchard Tree Care Services LtdLandscapers and gardeners
What happens if South Durham Structures Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 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 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 01560481
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 May 1981 (45 years ago)
- Registered office
- Dovecot Hill, South Church, Enterprise Park, Bishop Auckland, County Durham, DL14 6XR
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 9 July 2026
- Charges (mortgages)
- 3 outstanding of 4 registered
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 Bishop Auckland
Other active specialist construction companies registered in Bishop Auckland.
- Stanroph Contracting and Consultancy Limited2019
- Stihl Paving Ltd2023
- Tip Top Crane Op Ltd2025
- TMRC Ltd2026
- Total Planning Solutions (UK) Limited2013
- Traynor Construction Ltd2017
- UK Resilient Structures Ltd2023
- Vista Playgrounds Limited2026
All specialist construction companies in Bishop Auckland · All trades in Bishop Auckland · Specialist contractors across the UK
Frequently asked questions
When are South Durham Structures Limited's accounts due?
South Durham Structures Limited's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is South Durham Structures Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 September 2025, due by 30 September 2026, and one for the period to 31 December 2025, due by 31 December 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is South Durham Structures Limited still trading?
South Durham Structures Limited is listed as active on the Companies House register (checked 12 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 South Durham Structures Limited do?
South Durham Structures Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is South Durham Structures Limited?
South Durham Structures Limited was incorporated on 11 May 1981, 45 years ago.
What is the penalty if South Durham Structures 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 South Durham Structures Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.