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  4. Blay Builders & Contractors Limited

Blay Builders & Contractors Limited

ActiveTotal exemption (full) accountsCivil engineeringAlton
Company number
04633876
Incorporated
10 Jan 200323 years trading
Registered office
Market House, 21 Lenten Street, Alton, Hampshire, GU34 1HG
Nature of business
Construction of other civil engineering projects n.e.c.
Accounts due in
110 days
31 Jan 2027
Net assets
-£3,300▼
-173.4% on the year before
Cash at bank
£6,455▲
At 31 Mar 2025
Employees
1
Average during the year
From the Companies House register, 1 Oct 2026

Blay Builders & Contractors Limited is a 23-year-old private limited company registered in Alton, company number 04633876, one of 12 civil engineering contractors in Alton. Its next accounts are due at Companies House on 31 January 2027, and its first CT600 is due at HMRC on 31 March 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Jan 2027
in 110 days
For the period to 30 Apr 2026
CT600 due (first of two)
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
CT600 due (second of two)
30 Apr 2027
in 199 days
Period 1 Apr 2026 to 30 Apr 2026
Corporation tax payment
1 Feb 2027
in 111 days
9 months and 1 day after the period end
Confirmation statement
24 Jan 2027
in 103 days
Last made up to 10 Jan 2026

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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 £7,793 (-173.4%) on the year before, to -£3,300.
  • Net assets rose in 3 of 9 year-on-year comparisons on record.
  • Current assets of £8,973 against £18K owed within a year: 0.5 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£20K£40K31 March 2016: net assets £44K£44K201631 March 2017: net assets £35K£35K201731 March 2018: net assets £51K£51K201831 March 2019: net assets £48K£48K201931 March 2020: net assets £35K£35K202031 March 2021: net assets £10K£10K202131 March 2022: net assets £11K£11K202231 March 2023: net assets £2,809£2,809202331 March 2024: net assets £4,493£4,493202431 March 2025: net assets -£3,300-£3,3002025
Net assets at each year end, 2016 to 2025£0£20K£40K31 March 2016: net assets £44K£44K'1631 March 2017: net assets £35K£35K'1731 March 2018: net assets £51K£51K'1831 March 2019: net assets £48K£48K'1931 March 2020: net assets £35K£35K'2031 March 2021: net assets £10K£10K'2131 March 2022: net assets £11K£11K'2231 March 2023: net assets £2,809£2,809'2331 March 2024: net assets £4,493£4,493'2431 March 2025: net assets -£3,300-£3,300'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025-£3,300£6,455£8,973£18K1
31 Mar 2024£4,493£930£23K£28K1
31 Mar 2023£2,809£4,168£29K£38K1
31 Mar 2022£11K£8,391£27K£32K1
31 Mar 2021£10K£19K£19K£30K1
31 Mar 2020£35K£19K£46K£20K1
31 Mar 2019£48K£54K£59K£24K1
31 Mar 2018£51K£13K£70K£37K1
31 Mar 2017£35K£22K£75K£52K1
31 Mar 2016£44K£33K£97K£67K

Where Blay Builders & Contractors Limited is registered

Blay Builders & Contractors Limited's registered office on a map of the UK

The registered office is in Alton (GU34), in the East Hampshire local authority area, South East. Show GU34 1HG on a map.

Other trade companies in GU34

Shared registered office

50 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 Blay Builders & Contractors 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 January 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Feb 2027 to 28 Feb 2027£150
1 to 3 months late1 Mar 2027 to 30 Apr 2027£375
3 to 6 months late1 May 2027 to 31 Jul 2027£750
More than 6 months lateFrom 1 Aug 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 May 2027£200
3 months late30 Jul 2027another £200
6 months late30 Oct 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Apr 2028another 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
04633876
Status
Active
Company type
Private limited company
Incorporated
10 January 2003 (23 years ago)
Registered office
Market House, 21 Lenten Street, Alton, Hampshire, GU34 1HG
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
31 March 2025
Last confirmation statement
10 January 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 Alton

Other active civil engineering contractors registered in Alton.

All civil engineering contractors in Alton · All trades in Alton · Civil engineering across the UK

Frequently asked questions

When are Blay Builders & Contractors Limited's accounts due?

Blay Builders & Contractors Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.

When is Blay Builders & Contractors 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 2026, due by 31 March 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.

Is Blay Builders & Contractors Limited still trading?

Blay Builders & Contractors 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 Blay Builders & Contractors Limited do?

Blay Builders & Contractors Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).

How old is Blay Builders & Contractors Limited?

Blay Builders & Contractors Limited was incorporated on 10 January 2003, 23 years ago.

What is the penalty if Blay Builders & Contractors 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 Blay Builders & Contractors Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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