- Company number
- 05557595
- Incorporated
- 8 Sep 200521 years trading
- Registered office
- Trinity Buoy Wharf, 64 Orchard Place, London, E14 0JW
- Nature of business
- Construction of commercial buildings
Comast Construction Limited is a 21-year-old private limited company registered in London, company number 05557595, one of 12,075 building contractors in London. 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.
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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 £560K (+20.1%) on the year before, to £3.3M.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £5M against £1.7M owed within a year: 3.0 times cover.
- 11 employees on average, up from 10 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £3.3M | £647K | £5M | £1.7M | 11 |
| 30 Sep 2024 | £2.8M | £788K | £4.2M | £1.3M | 10 |
| 30 Sep 2023 | £2.6M | £744K | £3.7M | £855K | 10 |
| 30 Sep 2022 | £2.4M | £760K | £3.8M | £967K | 10 |
| 30 Sep 2021 | £2.1M | £826K | £3.2M | £621K | 10 |
| 30 Sep 2020 | £2.9M | £1.2M | £3.4M | £608K | 10 |
| 30 Sep 2019 | £2.8M | £898K | £3.4M | £623K | 10 |
| 30 Sep 2018 | £2.7M | £1.2M | £3.9M | £1.2M | 12 |
| 30 Sep 2017 | £2.4M | £1.4M | £3.3M | £916K | 14 |
| 30 Sep 2016 | £2.1M | £1.3M | £2.9M | £782K |
Who runs and owns Comast Construction Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (4)
| Name | Role | Appointed |
|---|---|---|
| C*** S*** | Director | Sep 2005 |
| M*** S*** | Director | Sep 2005 |
| H*** P*** | Director | Jul 2025 |
| H*** P*** | Secretary | Mar 2021 |
6 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| D*** C*** | Secretary | Nov 2014 | Mar 2021 |
| G*** K*** | Secretary | Apr 2011 | Nov 2014 |
| L*** S*** | Secretary | Jul 2008 | Jan 2010 |
| C*** S*** | Secretary | Sep 2005 | Jul 2008 |
| Same-Day Company Services Limited | Corporate Nominee Secretary | Sep 2005 | Sep 2005 |
| Wildman & Battell Limited | Nominee director (company) | Sep 2005 | Sep 2005 |
Person with significant control
Charges (secured borrowing)
5 of 5 registered charges are outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| HSBC UK Bank PLC | Outstanding | Aug 2024 |
| Clearstorm Limited | Outstanding | Feb 2013 |
| Clearstorm Limited | Outstanding | Mar 2011 |
| Clearstorm Limited | Outstanding | Oct 2009 |
| HSBC Bank PLC | Outstanding | Aug 2006 |
Where Comast Construction Limited is registered
The registered office is in London (E14), in the Tower Hamlets local authority area, London. Show E14 0JW on a map.
Other trade companies in E14
- Clarke & Lloyds Technologies LtdSpecialist contractors
- London Dev Grays LimitedProperty developers
- London Dev Sittingbourne LimitedProperty developers
- London Dev Dagenham LimitedProperty developers
- JK Motor Vehicles LtdMotor traders
- Eilunio LtdProperty developers
- Gasi Cleaning Co LtdCleaning companies
- Lustrouk LimitedCleaning companies
Also registered at this address
1 other company uses the same registered office as Comast Construction Limited.
- Comast Projects LtdProperty developers
What happens if Comast Construction 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 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
- 05557595
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 September 2005 (21 years ago)
- Registered office
- Trinity Buoy Wharf, 64 Orchard Place, London, E14 0JW
- 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
- 2 October 2025
- Charges (mortgages)
- 5 outstanding of 5 registered
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 London
Other active building contractors registered in London.
- Combit Renovations Ltd2022
- Comeshandy Constructions Limited2017
- Comexpert Limited2016
- Comfort Building Solutions Ltd2020
- Comfort Electrical Limited2008
- Comfy Building Services Ltd2018
- Compagnons De France Ltd2025
- Compass Properties (London)Ltd2013
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Comast Construction Limited's accounts due?
Comast Construction Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Comast Construction Limited'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 Comast Construction Limited still trading?
Comast Construction 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 Comast Construction Limited do?
Comast Construction Limited is registered under Construction of commercial buildings (SIC 41201).
How old is Comast Construction Limited?
Comast Construction Limited was incorporated on 8 September 2005, 21 years ago.
Who runs Comast Construction Limited?
Comast Construction Limited has 3 active directors, the longest-serving appointed in Sep 2005. Their names and service addresses are on the Companies House register.
Who owns Comast Construction Limited?
One person or company has significant control of Comast Construction Limited: Comast Holdings Limited (owns 75% or more of the shares).
What is the penalty if Comast Construction 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 Comast Construction 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.