- Company number
- 12044079
- Incorporated
- 11 Jun 20197 years trading
- Registered office
- 12 Mount Pleasant Lane, Bricketwood, St Albans, Hertfordshire, AL2 3XA
- Nature of business
- Construction of commercial buildings
A M 1 Ltd is a 7-year-old private limited company registered in St Albans, company number 12044079, one of 36 building contractors in St Albans. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
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 £94 (+0.8%) on the year before, to £11K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £71K against £60K owed within a year: 1.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £11K | £0 | £71K | £60K | 0 |
| 30 Jun 2024 | £11K | £3 | £111K | £91K | 0 |
| 30 Jun 2023 | -£12K | £29 | £185K | £178K | 0 |
| 30 Jun 2022 | -£21K | £361 | £183K | £176K | 0 |
| 30 Jun 2021 | -£14K | £3,358 | £144K | £120K | 0 |
| 30 Jun 2020 | -£4,638 | £44K | £60K | £15K | 0 |
Where A M 1 Ltd is registered
The registered office is in St Albans (AL2), in the St Albans local authority area, East of England. Show AL2 3XA on a map.
Other trade companies in AL2
- Keris Ventures Limited LimitedFinishing trades
- Kelly Brickwork LimitedBuilders
- Aurora Electrical LtdElectricians
- Pillars Motors LimitedMotor traders
- Pride & Joy LtdFinishing trades
- Rowantree Developments Group LimitedProperty developers
- Herts Groundworks and Civils LtdGroundworks and demolition
- Meristem Developments LtdProperty developers
What happens if A M 1 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12044079
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 June 2019 (7 years ago)
- Registered office
- 12 Mount Pleasant Lane, Bricketwood, St Albans, Hertfordshire, AL2 3XA
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 10 June 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 St Albans
Other active building contractors registered in St Albans.
- Aime Construction Limited2010
- Arch Landscape Solutions Ltd2024
- Azlan Homes Ltd2005
- Base Developments Limited2014
- Build 4 Space Limited2018
- Deegan Construction and Building Ltd2026
- Dwelling Place Homes Limited2021
- Ebro Construction Group Limited2017
All building contractors in St Albans · All trades in St Albans · Builders across the UK
Frequently asked questions
When are A M 1 Ltd's accounts due?
A M 1 Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is A M 1 Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is A M 1 Ltd still trading?
A M 1 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 A M 1 Ltd do?
A M 1 Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is A M 1 Ltd?
A M 1 Ltd was incorporated on 11 June 2019, 7 years ago.
What is the penalty if A M 1 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 A M 1 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.