- Companies
- Finishing trades
- Leeds
- Northern Building Systems Ltd
Northern Building Systems Ltd
- Company number
- 12838806
- Incorporated
- 26 Aug 20206 years trading
- Registered office
- 25-29 Sandy Way, Yeadon, Leeds, West Yorkshire, LS19 7EW
- Nature of business
- Other building completion and finishing
Northern Building Systems Ltd is a 6-year-old private limited company registered in Leeds, company number 12838806, one of 280 building finishing companies in Leeds. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Northern Building Systems LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £3,291 (+307%) on the year before, to £4,363.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £4,363 | £11K | 1 | ||
| 31 Aug 2024 | £1,072 | £42K | 1 | ||
| 31 Aug 2023 | £3,738 | £27K | £28K | 1 | |
| 31 Aug 2022 | £409 | £377 | £11K | £11K | 1 |
| 31 Aug 2021 | £1,782 | £1,055 | £3,826 | £2,044 | 1 |
Where Northern Building Systems Ltd is registered
The registered office is in Leeds (LS19), in the Leeds local authority area, Yorkshire and The Humber. Show LS19 7EW on a map.
Other trade companies in LS19
- TSL Automotive LtdMotor traders
- Landscape 94 LtdLandscapers and gardeners
- Bingley Builders LtdBuilders
- PP&H LtdPlumbers and heating engineers
- Agm Renovations LtdInstallers
- Mla Roofing LtdRoofers
- Centro Facilities LimitedFacilities management
- Dave Quinn Joinery Contractor LtdJoiners and carpenters
Shared registered office
162 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Northern Building Systems Ltd 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
- 12838806
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 August 2020 (6 years ago)
- Registered office
- 25-29 Sandy Way, Yeadon, Leeds, West Yorkshire, LS19 7EW
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 27 August 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Leeds
Other active building finishing companies registered in Leeds.
- Northern House Atelier Specialist Decorative Finishes Ltd2026
- Northstone Building Services Ltd2026
- Oakdene Services Limited2006
- Odh Interiors Ltd2024
- On Board Construction Ltd2024
- One Step Beyond Lofts Ltd2025
- Pak Building Services Ltd2023
- Parker Sovereign Group Limited2020
All building finishing companies in Leeds · All trades in Leeds · Finishing trades across the UK
Frequently asked questions
When are Northern Building Systems Ltd's accounts due?
Northern Building Systems Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Northern Building Systems Ltd'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 Northern Building Systems Ltd still trading?
Northern Building Systems Ltd 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 Northern Building Systems Ltd do?
Northern Building Systems Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Northern Building Systems Ltd?
Northern Building Systems Ltd was incorporated on 26 August 2020, 6 years ago.
What is the penalty if Northern Building Systems Ltd 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 Northern Building Systems Ltd 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.