- Company number
- 13243694
- Incorporated
- 4 Mar 20215 years trading
- Registered office
- Unit 3A, Station Way, Armley, Leeds, West Yorkshire, LS12 3HQ
- Nature of business
- Construction of commercial buildings
Altor Construction Ltd is a 5-year-old private limited company registered in Leeds, company number 13243694, one of 532 building contractors in Leeds. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 Altor Construction 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 £164K (+67%) on the year before, to £408K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £820K against £458K owed within a year: 1.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £408K | £447K | £820K | £458K | 0 |
| 30 Sep 2024 | £244K | £414K | £740K | £563K | 6 |
| 31 Mar 2023 | £153K | £202K | £221K | £92K | 6 |
| 31 Mar 2022 | £70K | £130K | £146K | £87K | 3 |
Public contracts won
Altor Construction Ltd has one public sector contract award on record (2022). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Leeds City Council | Leeds Building Services - Backlog Voids | Ceiling, not shown | 10 Jun 2022 |
Where Altor Construction Ltd is registered
The registered office is in Leeds (LS12), in the Leeds local authority area, Yorkshire and The Humber. Show LS12 3HQ on a map.
Other trade companies in LS12
- Ndka Investment LimitedMotor traders
- Jaw Groundworks LimitedLandscapers and gardeners
- Ivaniel Cleaning LimitedCleaning companies
- Mo Motorz LtdMotor traders
- M&A Sparkle LtdCleaning companies
- Afaaks International LtdProperty developers
- Gurmehar Motors LtdMotor traders
- Douglas Plumbing & Heating LtdPlumbers and heating engineers
Also registered at this address
4 other companies use the same registered office as Altor Construction Ltd.
- A&S Developments (Leeds) LtdBuilders
- Altor Facilities Management LtdBuilders
- Altor Projects LimitedBuilders
- Smith & Brook Developments LtdProperty developers
What happens if Altor Construction 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 13243694
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 March 2021 (5 years ago)
- Registered office
- Unit 3A, Station Way, Armley, Leeds, West Yorkshire, LS12 3HQ
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 3 March 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Leeds
Other active building contractors registered in Leeds.
- Altor Facilities Management Ltd2022
- Altor Projects Limited2025
- Alwoodley Building and Construction Ltd2017
- Alwoodley Civil Engineering Limited2026
- Alwoodley Developments Ltd2014
- Amantia North Ltd2023
- Amedea Construct Ltd2020
- Anchorstone Construct Limited2026
All building contractors in Leeds · All trades in Leeds · Builders across the UK
Frequently asked questions
When are Altor Construction Ltd's accounts due?
Altor Construction Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Altor Construction Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Altor Construction Ltd still trading?
Altor Construction Ltd 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 Altor Construction Ltd do?
Altor Construction Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Altor Construction Ltd?
Altor Construction Ltd was incorporated on 4 March 2021, 5 years ago.
Has Altor Construction Ltd won public sector contracts?
Yes. Altor Construction Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Leeds City Council.
What is the penalty if Altor Construction 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 Altor Construction Ltd 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.