- Companies
- Civil engineering
- Reading
- N.J. Doyne Construction Limited
N.J. Doyne Construction Limited
- Company number
- 03377615
- Incorporated
- 29 May 199729 years trading
- Registered office
- Silver Birches Yard Reading Road, Padworth Common, Reading, Berkshire, RG7 4QL
- Nature of business
- Construction of water projects
N.J. Doyne Construction Limited is a 29-year-old private limited company registered in Reading, company number 03377615, one of 84 civil engineering contractors in Reading. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for N.J. Doyne Construction LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £459K (-27.6%) on the year before, to £1.2M.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £1.2M against £44K owed within a year: more than 10 times cover.
- 5 employees on average, up from 4 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1.2M | £16K | £1.2M | £44K | 5 |
| 31 Mar 2024 | £1.7M | £26K | £2.3M | £711K | 4 |
| 31 Jul 2023 | £1.9M | £33K | £2.8M | £851K | 5 |
| 31 Jul 2022 | £1.9M | £357K | £3.1M | £974K | 8 |
| 31 Jul 2021 | £1.9M | £360K | £4.2M | £1.8M | 9 |
| 31 Jul 2020 | £2M | £1.2M | £4.4M | £2.3M | 9 |
| 31 Jul 2019 | £3.3M | £6,953 | £6.1M | £2.7M | 9 |
| 31 Jul 2018 | £2.4M | £900 | £4.3M | £1.9M | 8 |
| 31 Jul 2017 | £2.5M | £891K | £4.4M | £1.9M | 7 |
| 31 Jul 2016 | £931K | £4,965 | £2.4M | £1.5M |
Where N.J. Doyne Construction Limited is registered
The registered office is in Reading (RG7), in the West Berkshire local authority area, South East. Show RG7 4QL on a map.
Other trade companies in RG7
- Serenity Park Homes LtdMotor traders
- J Stroud Agricultural LtdProperty developers
- Just Henry Services LtdSpecialist contractors
- The Bugfather LtdCleaning companies
- D Ray Roofing LtdRoofers
- CMK26 LimitedMotor traders
- Solstice Environments LtdPlumbers and heating engineers
- Heston Energy Solutions LimitedElectricians
Also registered at this address
2 other companies use the same registered office as N.J. Doyne Construction Limited.
- Construction Industry Training Providers LtdSpecialist contractors
- Glenidan Homes Ltd.Property developers
What happens if N.J. Doyne Construction 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 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
- 03377615
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 May 1997 (29 years ago)
- Registered office
- Silver Birches Yard Reading Road, Padworth Common, Reading, Berkshire, RG7 4QL
- Nature of business
- Construction of water projects (SIC 42910)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 29 May 2026
- Charges (mortgages)
- 1 outstanding of 6 registered
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 Reading
Other active civil engineering contractors registered in Reading.
- Niles Engineering Ltd2018
- P D Evans Consultancy Ltd2019
- Paragon Interiors Design & Build Ltd2012
- Petre Rail Ltd2016
- Phoenix Vbuild Ltd2023
- Portman Property Maintenance Ltd2005
- Potentia Construe Ltd2024
- Precise Bim Studio Limited2024
All civil engineering contractors in Reading · All trades in Reading · Civil engineering across the UK
Frequently asked questions
When are N.J. Doyne Construction Limited's accounts due?
N.J. Doyne Construction Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is N.J. Doyne Construction Limited'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 N.J. Doyne Construction Limited still trading?
N.J. Doyne Construction 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 N.J. Doyne Construction Limited do?
N.J. Doyne Construction Limited is registered under Construction of water projects (SIC 42910).
How old is N.J. Doyne Construction Limited?
N.J. Doyne Construction Limited was incorporated on 29 May 1997, 29 years ago.
What is the penalty if N.J. Doyne Construction 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 N.J. Doyne Construction Limited 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.