Bybuild Ltd
- Company number
- 16449364
- Incorporated
- 14 May 20251 year trading
- Registered office
- The Dower House Cowlam Farm New Village Road, Little Weighton, Cottingham, England, HU20 3XH
- Nature of business
- Site preparation
Bybuild Ltd is a 1-year-old private limited company registered in Cottingham, company number 16449364, one of the UK's groundworks and demolition companies. Its next accounts are due at Companies House on 14 February 2027, and its first CT600 is due at HMRC on 13 May 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Bybuild Ltd is registered
The registered office is in Cottingham (HU20), in the East Riding of Yorkshire local authority area, Yorkshire and The Humber. Show HU20 3XH on a map.
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What happens if Bybuild 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 14 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Feb 2027 to 14 Mar 2027 | £150 |
| 1 to 3 months late | 15 Mar 2027 to 14 May 2027 | £375 |
| 3 to 6 months late | 15 May 2027 to 14 Aug 2027 | £750 |
| More than 6 months late | From 15 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16449364
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 May 2025 (1 year ago)
- Registered office
- The Dower House Cowlam Farm New Village Road, Little Weighton, Cottingham, England, HU20 3XH
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 May 2026
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Cottingham
Other active groundworks and demolition companies registered in Cottingham.
All groundworks and demolition companies in Cottingham · All trades in Cottingham · Groundworks and demolition across the UK
Frequently asked questions
When are Bybuild Ltd's accounts due?
Bybuild Ltd's next accounts are due at Companies House by 14 February 2027 (in 124 days), covering the period to 31 May 2026.
When is Bybuild Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 May 2026, due by 13 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Bybuild Ltd still trading?
Bybuild 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 Bybuild Ltd do?
Bybuild Ltd is registered under Site preparation (SIC 43120).
How old is Bybuild Ltd?
Bybuild Ltd was incorporated on 14 May 2025, 1 year ago.
What is the penalty if Bybuild 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 Bybuild 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.