- Companies
- Groundworks and demolition
- Swaffham
- Amb Plant Limited
Amb Plant Limited
- Company number
- 05312382
- Incorporated
- 14 Dec 200421 years trading
- Registered office
- 24 Market Place, Swaffham, Norfolk, PE37 7QH
- Nature of business
- Site preparation; Other specialised construction activities n.e.c.
Amb Plant Limited is a 21-year-old private limited company registered in Swaffham, company number 05312382, one of the UK's groundworks and demolition companies. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £29K (+32.7%) on the year before, to -£59K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £34K against £110K owed within a year: 0.3 times cover.
- 3 employees on average, down from 5 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | -£59K | £34K | £110K | 3 | |
| 31 Jan 2024 | -£88K | £30K | £135K | 5 | |
| 31 Jan 2023 | £3,951 | £130K | £145K | 8 | |
| 31 Jan 2022 | £3,356 | £82 | £60K | £258K | 13 |
| 31 Jan 2021 | £2,060 | £112 | £87K | £257K | 13 |
| 31 Jan 2020 | £13K | £112 | £86K | £230K | 14 |
| 31 Jan 2019 | £21K | £3,190 | £82K | £271K | 21 |
| 31 Jan 2018 | £85K | £22 | £112K | £240K | 27 |
| 31 Jan 2017 | £62K | £22 | £258K | £657K | 17 |
| 31 Jan 2016 | £166K | £12 | £160K | £246K |
Public contracts won
Amb Plant Limited has 2 public sector contract awards on record; the ones with their own published value total £108K, from 2016 to 2018. Source: Contracts Finder and Find a Tender award notices. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Saffron Walden Town Council1 award
- Norfolk Constabulary1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Saffron Walden Town Council | Chaters Hill Works | £8,000 | 2 Apr 2018 |
| Norfolk Constabulary | Car Wash Installation Works | £100K | 22 Sep 2016 |
Where Amb Plant Limited is registered
The registered office is in Swaffham (PE37), in the Breckland local authority area, East of England. Show PE37 7QH on a map.
Other trade companies in PE37
- Kris Group LimitedBuilders
- Rawh Stock LimitedMotor traders
- Codo Leisure LtdMotor traders
- E Briston Plumbing and Heating LimitedPlumbers and heating engineers
- Chimney Sweep Norfolk LtdCleaning companies
- KT Civil & Safety LtdCivil engineering
- Maple Aquatics LtdLandscapers and gardeners
- Eastern Contracts LtdElectricians
Shared registered office
90 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 Amb Plant 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 05312382
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 December 2004 (21 years ago)
- Registered office
- 24 Market Place, Swaffham, Norfolk, PE37 7QH
- Nature of business
- Site preparation (SIC 43120)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 13 December 2025
- Charges (mortgages)
- 3 outstanding of 7 registered
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Swaffham
Other active groundworks and demolition companies registered in Swaffham.
- Maerdy Plant Limited2005
- Dig - Geotech Limited2005
- Bingley Demolition Limited2005
- Contract Trenching Limited2005
- Andrew Curtis Construction Limited2005
- Dehane Rhodes Limited2005
- Garden Landscape Services Ltd2005
- J M Plant Services Limited2005
All groundworks and demolition companies in Swaffham · All trades in Swaffham · Groundworks and demolition across the UK
Frequently asked questions
When are Amb Plant Limited's accounts due?
Amb Plant Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Amb Plant Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Amb Plant Limited still trading?
Amb Plant 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 Amb Plant Limited do?
Amb Plant Limited is registered under Site preparation (SIC 43120); Other specialised construction activities n.e.c. (SIC 43999).
How old is Amb Plant Limited?
Amb Plant Limited was incorporated on 14 December 2004, 21 years ago.
Has Amb Plant Limited won public sector contracts?
Yes. Amb Plant Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £108K), most recently from Saffron Walden Town Council.
What is the penalty if Amb Plant 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 Amb Plant 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.