- Companies
- Specialist contractors
- Newcastle upon Tyne
- CML Sustain (Documentation) Limited
CML Sustain (Documentation) Limited
- Company number
- 07779339
- Incorporated
- 19 Sep 201115 years trading
- Registered office
- Clavering House, 1 Clavering Place, Newcastle upon Tyne, NE1 3NG
- Nature of business
- Other specialised construction activities n.e.c.
CML Sustain (Documentation) Limited is a 15-year-old private limited company registered in Newcastle upon Tyne, company number 07779339, one of 152 specialist construction companies in Newcastle upon Tyne. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £23K (-41.5%) on the year before, to £33K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £41K against £9,511 owed within a year: 4.3 times cover.
- 3 employees on average, up from 2 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 Nov 2025 | £33K | £41K | £9,511 | 3 | |
| 30 Nov 2024 | £56K | £54K | £64K | £8,997 | 2 |
| 30 Nov 2023 | £64K | £54K | £65K | £13K | 2 |
| 30 Nov 2022 | £62K | £41K | £60K | £12K | 2 |
| 30 Nov 2021 | £66K | £54K | £63K | £17K | 2 |
| 30 Nov 2020 | £73K | £49K | £68K | £18K | 2 |
| 30 Nov 2019 | £70K | £38K | £51K | £12K | 2 |
| 30 Nov 2018 | £73K | £32K | £50K | £21K | 2 |
| 30 Nov 2017 | £72K | £74K | £90K | £18K | 1 |
| 30 Nov 2016 | £48K | £68K | £68K | £20K |
Where CML Sustain (Documentation) Limited is registered
The registered office is in Newcastle upon Tyne (NE1), in the Newcastle upon Tyne local authority area, North East. Show NE1 3NG on a map.
Other trade companies in NE1
- Modobloc Alnwick 1 LimitedProperty developers
- Modobloc Alnwick 2 LimitedProperty developers
- GSN Energy LtdBuilders
- Fima Developments UK LimitedCivil engineering
- Me Wind Solutions LtdMachinery repair and installation
- Northlink Building and Property Maintenance LimitedFinishing trades
- DM Kleaning Services LtdCleaning companies
- Hillcrest Home Improvements LimitedLandscapers and gardeners
Also registered at this address
10 other companies use the same registered office as CML Sustain (Documentation) Limited.
- Abm Energy LtdPlumbers and heating engineers
- Cead LimitedProperty developers
- Cleaning Empire LimitedCleaning companies
- DPL Group Ne LtdRoofers
- Fiberstream LtdElectricians
- J2 Property Services LtdFacilities management
- Keystone Contracting (Ne) LtdFinishing trades
- MCN Mechanical and Electrical LimitedPlumbers and heating engineers
- Newcastle Gas Services LtdPlumbers and heating engineers
- Tynelets Commercial LimitedProperty developers
What happens if CML Sustain (Documentation) 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 07779339
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 September 2011 (15 years ago)
- Registered office
- Clavering House, 1 Clavering Place, Newcastle upon Tyne, NE1 3NG
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 22 August 2026
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 Newcastle upon Tyne
Other active specialist construction companies registered in Newcastle upon Tyne.
- CN Construction Services Ltd2026
- Coating Consultancy Limited2025
- Complypro Limited2025
- Composite Panel Structures UK Limited2024
- Consult Services North East Limited2025
- Creative Homes 4 You Ltd2019
- D Burns Interiors Ltd2022
- D N Taylor Ltd2023
All specialist construction companies in Newcastle upon Tyne · All trades in Newcastle upon Tyne · Specialist contractors across the UK
Frequently asked questions
When are CML Sustain (Documentation) Limited's accounts due?
CML Sustain (Documentation) Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is CML Sustain (Documentation) Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is CML Sustain (Documentation) Limited still trading?
CML Sustain (Documentation) 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 CML Sustain (Documentation) Limited do?
CML Sustain (Documentation) Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is CML Sustain (Documentation) Limited?
CML Sustain (Documentation) Limited was incorporated on 19 September 2011, 15 years ago.
What is the penalty if CML Sustain (Documentation) 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 CML Sustain (Documentation) 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.