- Companies
- Civil engineering
- Hexham
- SDJ Design Engineering Limited
SDJ Design Engineering Limited
- Company number
- 06480781
- Incorporated
- 23 Jan 200818 years trading
- Registered office
- Milburn House Hexham Business Park, Burn Lane, Hexham, Northumberland, NE46 3RU
- Nature of business
- Construction of other civil engineering projects n.e.c.
SDJ Design Engineering Limited is a 18-year-old private limited company registered in Hexham, company number 06480781, one of 9 civil engineering contractors in Hexham. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £107K (+40.1%) on the year before, to £374K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £360K against £70K owed within a year: 5.1 times cover.
- 7 employees on average during the year.
- Balance sheets on record for 9 years, 2018 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £374K | £360K | £70K | 7 | |
| 31 Jan 2025 | £267K | £286K | £67K | 7 | |
| 31 Jan 2024 | £283K | £309K | £53K | 8 | |
| 31 Jan 2023 | £236K | £401K | £128K | 7 | |
| 31 Jan 2022 | £148K | £225K | £55K | 6 | |
| 31 Jan 2021 | £229K | £325K | £48K | 4 | |
| 31 Jan 2020 | £171K | £187K | £26K | 4 | |
| 31 Jan 2019 | £181K | £220K | £60K | 4 | |
| 31 Jan 2018 | £220K | £276K | £80K | 3 |
Where SDJ Design Engineering Limited is registered
The registered office is in Hexham (NE46), in the Northumberland local authority area, North East. Show NE46 3RU on a map.
Other trade companies in NE46
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- N K Landscaping North East LtdLandscapers and gardeners
- Paul Britten Roofing LtdRoofers
- Funky Chair Interiors LtdRepair services
- Garden House Farm Hexham LimitedProperty developers
- Dodwell Cleaning Services LtdCleaning companies
- R380 Automotive LimitedMechanics and garages
- Tyne Valley Electrical LtdElectricians
Also registered at this address
5 other companies use the same registered office as SDJ Design Engineering Limited.
- Bowman Homes LimitedProperty developers
- Cityview LimitedSpecialist contractors
- Heritage Consolidation LimitedSpecialist contractors
- KMT Building Solutions LimitedProperty developers
- Malco Tyre Specialists LtdMotor traders
What happens if SDJ Design Engineering 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 06480781
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 January 2008 (18 years ago)
- Registered office
- Milburn House Hexham Business Park, Burn Lane, Hexham, Northumberland, NE46 3RU
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 15 January 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 Hexham
Other active civil engineering contractors registered in Hexham.
- Ycs Construction Limited2008
- Aj Beck Onsite Support Ltd2018
- Armel Limited2002
- Atworth Engineering Limited2014
- Coulson Construction Limited2002
- Hexdale Consultants Ltd2023
- Red Engineering Limited2008
- Richard Peel Consultancy Ltd2013
All civil engineering contractors in Hexham · All trades in Hexham · Civil engineering across the UK
Frequently asked questions
When are SDJ Design Engineering Limited's accounts due?
SDJ Design Engineering Limited's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is SDJ Design Engineering Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is SDJ Design Engineering Limited still trading?
SDJ Design Engineering 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 SDJ Design Engineering Limited do?
SDJ Design Engineering Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is SDJ Design Engineering Limited?
SDJ Design Engineering Limited was incorporated on 23 January 2008, 18 years ago.
What is the penalty if SDJ Design Engineering 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 SDJ Design Engineering 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.