- Companies
- Specialist contractors
- London
- Grassfield Maritime Consultants Ltd
Grassfield Maritime Consultants Ltd
- Company number
- 06201252
- Incorporated
- 3 Apr 200719 years trading
- Registered office
- 63 Jeddo Road, Unit 1, London, W12 9EE
- Nature of business
- Other specialised construction activities n.e.c.
Grassfield Maritime Consultants Ltd is a 19-year-old private limited company registered in London, company number 06201252, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 down £2,624 (-7.6%) on the year before, to -£37K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £13K against £69K owed within a year: 0.2 times cover.
- 3 employees on average during the year.
- 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 Mar 2025 | -£37K | £13K | £69K | 3 | |
| 31 Mar 2024 | -£35K | £35K | £69K | 3 | |
| 31 Mar 2023 | -£19K | £18K | £65K | £54K | 3 |
| 31 Mar 2022 | -£20K | £60K | £106K | £84K | 3 |
| 31 Mar 2021 | £10K | £94K | £139K | £79K | 2 |
| 31 Mar 2020 | £9,041 | £22K | £55K | £46K | 2 |
| 31 Mar 2019 | £6,689 | £17K | £25K | £19K | 2 |
| 31 Mar 2018 | £13K | £6,277 | £26K | £13K | 2 |
| 31 Mar 2017 | £13K | £6,074 | £29K | £16K | 2 |
| 31 Mar 2016 | £43K | £34K | £58K | £15K |
Where Grassfield Maritime Consultants Ltd is registered
The registered office is in London (W12), in the Hammersmith and Fulham local authority area, London. Show W12 9EE on a map.
Other trade companies in W12
- Solren Cleaning LtdCleaning companies
- Skilser UK LimitedSpecialist contractors
- Kasco Builders LtdBuilders
- Roland’S Glass & Glazing LtdGlaziers
- Cybernova Solutions LimitedMechanics and garages
- Lolach Services LimitedCleaning companies
- Neat and Cleaning Services LtdCleaning companies
- Figaro W129 LimitedCleaning companies
Also registered at this address
7 other companies use the same registered office as Grassfield Maritime Consultants Ltd.
- Faultless LimitedElectricians
- McPhilip&Sons LtdFinishing trades
- Northolt Consultant LtdProperty developers
- P P K Systems LtdElectricians
- Replenish Construction LtdFinishing trades
- Titan Estates Group LtdProperty developers
- Zak Roofing LimitedRoofers
What happens if Grassfield Maritime Consultants 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 06201252
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 April 2007 (19 years ago)
- Registered office
- 63 Jeddo Road, Unit 1, London, W12 9EE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 April 2026
- Previous names
- Grassfield Offshore Consultants Limited (until 17 Apr 2007)
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.
- Grays Inn Memorials Ltd2025
- Grays Maintenance Group Ltd2025
- Green Decorations London Ltd2011
- Green Design & Solutions Ltd2018
- Green Eco Smart Limited2024
- Green Facades (Se) Limited2023
- Green Fix Property Solutions Ltd2024
- Green Homes & Horses Ltd2015
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Frequently asked questions
When are Grassfield Maritime Consultants Ltd's accounts due?
Grassfield Maritime Consultants Ltd's next accounts are due at Companies House by 31 December 2026 (in 78 days), covering the period to 31 March 2026.
When is Grassfield Maritime Consultants Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Grassfield Maritime Consultants Ltd still trading?
Grassfield Maritime Consultants 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 Grassfield Maritime Consultants Ltd do?
Grassfield Maritime Consultants Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Grassfield Maritime Consultants Ltd?
Grassfield Maritime Consultants Ltd was incorporated on 3 April 2007, 19 years ago.
What is the penalty if Grassfield Maritime Consultants 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 Grassfield Maritime Consultants 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.