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- Monolith Contracts Ltd
Company profile · Specialist contractors
Monolith Contracts Ltd
Monolith Contracts Ltd is a 5-year-old private limited company registered in London, company number 13207488, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 28 February 2026, as filed at Companies House.
Monolith Contracts Ltd over the years
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 £34K (+22.4%) on the year before, to £187K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £269K against £234K owed within a year: 1.1 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 5 years, 2022 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | £187K | £104K | £269K | £234K | 3 |
| 28 Feb 2025 | £153K | £14K | £323K | £186K | 2 |
| 28 Feb 2024 | £90K | £102K | £280K | £186K | 3 |
| 28 Feb 2023 | £102K | £207K | £105K | 1 | |
| 28 Feb 2022 | £82K | £109K | £27K | 1 |
Where Monolith Contracts Ltd is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 2NX on a map.
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Shared registered office
2,436 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 Monolith Contracts 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 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13207488
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 February 2021 (5 years ago)
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 28 February (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 8 November 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Montreal Building Services Ltd2025
- Moozaction Limited2015
- Morar & Son's Ltd2024
- Moraru Group Limited2022
- Moraru UK Ltd2016
- Morgan Pools (Maintenance) Limited2015
- Morgan Site Solutions Ltd2019
- Morris Infrastructure Group UK Ltd2018
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Monolith Contracts Ltd's accounts due?
Monolith Contracts Ltd's next accounts are due at Companies House by 30 November 2027 (in 414 days), covering the period to 28 February 2027.
When is Monolith Contracts Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Monolith Contracts Ltd still trading?
Monolith Contracts 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 Monolith Contracts Ltd do?
Monolith Contracts Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209).
How old is Monolith Contracts Ltd?
Monolith Contracts Ltd was incorporated on 17 February 2021, 5 years ago.
What is the penalty if Monolith Contracts 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 Monolith Contracts 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.