- Companies
- Civil engineering
- London
- Bldtech- Consult Ltd
Bldtech- Consult Ltd
- Company number
- 11825533
- Incorporated
- 13 Feb 20197 years trading
- Registered office
- Demsa Accounts 565 Green Lanes, Haringey, London, N8 0RL
- Nature of business
- Construction of other civil engineering projects n.e.c.
Bldtech- Consult Ltd is a 7-year-old private limited company registered in London, company number 11825533, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 January 2028, and the CT600 for the period to 30 April 2027 is due at HMRC on 30 April 2028.
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 £4,578 (-276.4%) on the year before, to -£2,922.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £8,786 against £11K owed within a year: 0.8 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2026 | -£2,922 | £242 | £8,786 | £11K | 1 |
| 30 Apr 2025 | £1,656 | £4,668 | £16K | £10K | 2 |
| 30 Apr 2024 | £996 | £242 | £20K | £9,603 | 1 |
| 30 Apr 2023 | £952 | £2,025 | £26K | £11K | 1 |
| 30 Apr 2022 | £839 | £484 | £28K | £9,216 | 1 |
| 30 Apr 2021 | £406 | £393 | £27K | £6,636 | 1 |
| 30 Apr 2020 | £334 | £350 | £360 | £26 |
Where Bldtech- Consult Ltd is registered
The registered office is in London (N8), in the Haringey local authority area, London. Show N8 0RL on a map.
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- Nexuswire UK LtdElectricians
Shared registered office
34 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 Bldtech- Consult 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 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2028 to 29 Feb 2028 | £150 |
| 1 to 3 months late | 1 Mar 2028 to 30 Apr 2028 | £375 |
| 3 to 6 months late | 1 May 2028 to 31 Jul 2028 | £750 |
| More than 6 months late | From 1 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 11825533
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 February 2019 (7 years ago)
- Registered office
- Demsa Accounts 565 Green Lanes, Haringey, London, N8 0RL
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2026
- Last confirmation statement
- 12 February 2026
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 London
Other active civil engineering contractors registered in London.
- Blue Boson Tech Ltd2018
- Blue Property Developments Ltd2019
- Bluemethane Limited2021
- Blutek Engineering Ltd2025
- BNL Fibre Limited2022
- Bokas Specialist Services Ltd.2017
- Bolt Rail Ltd2025
- Bolton Comm Services Ltd2025
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Bldtech- Consult Ltd's accounts due?
Bldtech- Consult Ltd's next accounts are due at Companies House by 31 January 2028 (in 476 days), covering the period to 30 April 2027.
When is Bldtech- Consult Ltd's CT600 due?
The CT600 for the period to 30 April 2027 is due at HMRC by 30 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2028.
Is Bldtech- Consult Ltd still trading?
Bldtech- Consult 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 Bldtech- Consult Ltd do?
Bldtech- Consult Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Bldtech- Consult Ltd?
Bldtech- Consult Ltd was incorporated on 13 February 2019, 7 years ago.
What is the penalty if Bldtech- Consult 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 Bldtech- Consult 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.