- Companies
- Specialist contractors
- London
- Buildburo Limited
Buildburo Limited
- Company number
- 03917949
- Incorporated
- 2 Feb 200026 years trading
- Registered office
- 346 Fulham Road, London, SW10 9UH
- Nature of business
- Other specialised construction activities n.e.c.
Buildburo Limited is a 26-year-old private limited company registered in London, company number 03917949, one of 4,318 specialist construction companies in London. Companies House shows its accounts as overdue: they were due on 31 March 2026.
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 £47K (-7.5%) on the year before, to £583K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £1.1M against £439K owed within a year: 2.5 times cover.
- 2 employees on average, down from 4 the year before.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2024 | £583K | £53K | £1.1M | £439K | 2 |
| 31 Mar 2023 | £630K | £122K | £1.1M | £325K | 4 |
| 31 Mar 2022 | £695K | £106K | £1.3M | £383K | 4 |
| 31 Mar 2021 | £758K | £231K | £1.3M | £339K | 2 |
| 31 Mar 2020 | £825K | £19K | £961K | £72K | 2 |
| 31 Mar 2019 | £934K | £35K | £1.1M | £1.5M | |
| 31 Mar 2018 | £883K | £62K | £1.5M | £843K | |
| 31 Mar 2017 | £789K | £1.4M | £666K | ||
| 31 Mar 2016 | £862K | £1M | £543K | ||
| 31 Mar 2015 | £847K | £1.1M | £584K |
Where Buildburo Limited is registered
The registered office is in London (SW10), in the Kensington and Chelsea local authority area, London. Show SW10 9UH on a map.
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Also registered at this address
1 other company uses the same registered office as Buildburo Limited.
- Tyler Mandic LimitedSpecialist contractors
What happens if Buildburo Limited files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2026 to 30 Apr 2026 | £150 |
| 1 to 3 months late | 1 May 2026 to 30 Jun 2026 | £375 |
| 3 to 6 months late | 1 Jul 2026 to 30 Sep 2026 | £750 |
| More than 6 months late | From 1 Oct 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2026 | £200 |
| 3 months late | 30 Sep 2026 | another £200 |
| 6 months late | 30 Dec 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2027 | 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
- 03917949
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2000 (26 years ago)
- Registered office
- 346 Fulham Road, London, SW10 9UH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2024
- Last confirmation statement
- 21 January 2026
- Charges (mortgages)
- 4 outstanding of 4 registered
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.
- Buildedge Drylining Ltd2025
- Builder Bros Limited2019
- Builders Are Us Limited2009
- Builders by Design Property Management Services Limited2013
- Builders in Ltd2025
- Builders of London Contractors Ltd2022
- Builderus Ltd2024
- Building 360 Ltd2020
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Buildburo Limited's accounts due?
Buildburo Limited's accounts were due at Companies House on 31 March 2026 and the register shows them as overdue.
When is Buildburo Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 March 2025, due by 31 March 2026, and one for the period to 30 June 2025, due by 30 June 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Buildburo Limited still trading?
Buildburo Limited is listed as active on the Companies House register (checked 13 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 Buildburo Limited do?
Buildburo Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Buildburo Limited?
Buildburo Limited was incorporated on 2 February 2000, 26 years ago.
What is the penalty if Buildburo 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 Buildburo Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.