- Companies
- Civil engineering
- W.A. Deacon and Sons Limited
W.A. Deacon and Sons Limited
- Company number
- 02253599
- Incorporated
- 9 May 198838 years trading
- Registered office
- 5 Norman Way, High Street, Lavenham, Suffolk, CO10 9PY
- Nature of business
- Construction of other civil engineering projects n.e.c.
W.A. Deacon and Sons Limited is a 38-year-old private limited company registered in Lavenham, company number 02253599, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
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 W.A. Deacon and Sons 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 £122K (-33.6%) on the year before, to £242K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £517K against £321K owed within a year: 1.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £242K | £1,815 | £517K | £321K | 0 |
| 31 May 2025 | £364K | £1,815 | £585K | £274K | 0 |
| 31 May 2024 | £433K | £18K | £706K | £340K | 11 |
| 31 May 2023 | £383K | £273K | £670K | £334K | 10 |
| 31 May 2022 | £283K | £128K | £379K | £153K | 10 |
| 31 May 2021 | £287K | £5,480 | £451K | £198K | 10 |
| 31 May 2020 | £144K | £2,459 | £327K | £209K | 10 |
| 31 May 2019 | £264K | £5,800 | £448K | £199K | 10 |
| 31 May 2018 | £246K | £84K | £409K | £179K | 9 |
| 31 May 2017 | £279K | £114K | £471K | £204K | 11 |
Where W.A. Deacon and Sons Limited is registered
The registered office is in Lavenham (CO10), in the Babergh local authority area, East of England. Show CO10 9PY on a map.
Other trade companies in CO10
- Regrid LtdMotor traders
- Voltage Link LimitedCivil engineering
- The 1 Percent Team LtdProperty developers
- Green Star Heating Services LtdPlumbers and heating engineers
- Ca Scaffolding Services LtdScaffolders
- Delphi Developments LtdProperty developers
- Complete Solutions Group LtdFacilities management
- Finada Corp LimitedBuilders
Also registered at this address
1 other company uses the same registered office as W.A. Deacon and Sons Limited.
- Burnerserve LimitedPlumbers and heating engineers
What happens if W.A. Deacon and Sons 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 02253599
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 May 1988 (38 years ago)
- Registered office
- 5 Norman Way, High Street, Lavenham, Suffolk, CO10 9PY
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 16 February 2026
- Charges (mortgages)
- 2 outstanding of 2 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
Other active civil engineering contractors.
Frequently asked questions
When are W.A. Deacon and Sons Limited's accounts due?
W.A. Deacon and Sons Limited's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is W.A. Deacon and Sons Limited's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is W.A. Deacon and Sons Limited still trading?
W.A. Deacon and Sons 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 W.A. Deacon and Sons Limited do?
W.A. Deacon and Sons Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is W.A. Deacon and Sons Limited?
W.A. Deacon and Sons Limited was incorporated on 9 May 1988, 38 years ago.
What is the penalty if W.A. Deacon and Sons 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 W.A. Deacon and Sons 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.