- Companies
- Civil engineering
- Teddington
- Master Basement Ltd
Master Basement Ltd
- Company number
- 12964461
- Incorporated
- 21 Oct 20205 years trading
- Registered office
- 171 Kingston Road, Teddington, TW11 9JP
- Nature of business
- Construction of other civil engineering projects n.e.c.; Other building completion and finishing
Master Basement Ltd is a 5-year-old private limited company registered in Teddington, company number 12964461, one of 11 civil engineering contractors in Teddington. 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 unchanged on the year before, at £100.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £206 against £106 owed within a year: 1.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £100 | £101 | £206 | £106 | 0 |
| 31 Mar 2024 | £100 | £116 | £231 | £131 | 0 |
| 31 Mar 2023 | £100 | £2,373 | £24K | £28K | 0 |
| 31 Mar 2022 | -£1,376 | £648 | £648 | £2,024 | 0 |
| 31 Mar 2021 | -£374 | 0 |
Where Master Basement Ltd is registered
The registered office is in Teddington (TW11), in the Richmond upon Thames local authority area, London. Show TW11 9JP on a map.
Other trade companies in TW11
- Build Fixing London LimitedInstallers
- Chichester Arms Developments LimitedProperty developers
- Restore Roofing & Building LtdRoofers
- Teddington Plastering LimitedBuilders
- Signature Build Bespoke LtdBuilders
- P and R Trades LtdElectricians
- Teddington Air Conditioning LtdPlumbers and heating engineers
- Right Pitch Roofing LtdRoofers
Shared registered office
27 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 Master Basement 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
- 12964461
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 October 2020 (5 years ago)
- Registered office
- 171 Kingston Road, Teddington, TW11 9JP
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 20 October 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Teddington
Other active civil engineering contractors registered in Teddington.
- Steve Building Services Ltd2024
- Abilene Snowe Limited2010
- B Executed Management Ltd2022
- Culhane Construction Limited2015
- Eurocreative Ltd2015
- GBT Projects Ltd2022
- JP Interior Consulting Ltd2025
- JP Interior Services Ltd2020
All civil engineering contractors in Teddington · All trades in Teddington · Civil engineering across the UK
Frequently asked questions
When are Master Basement Ltd's accounts due?
Master Basement Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Master Basement 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 Master Basement Ltd still trading?
Master Basement 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 Master Basement Ltd do?
Master Basement Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Other building completion and finishing (SIC 43390).
How old is Master Basement Ltd?
Master Basement Ltd was incorporated on 21 October 2020, 5 years ago.
What is the penalty if Master Basement 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 Master Basement 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.