1. Companies
  2. Property developers
  3. Hounslow
  4. Whonderr-Arthur Engineering Limited

Whonderr-Arthur Engineering Limited

ActiveMicro-entity accountsProperty developersHounslow
Company number
09969443
Incorporated
26 Jan 201610 years trading
Registered office
26 Dashwood Court, 40 Livingstone Road, Hounslow, TW3 1XZ
Nature of business
Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Construction of roads and motorways
Accounts due in
19 days
31 Oct 2026
Net assets
£4,538▼
-32.7% on the year before
Employees
1
Average during the year
From the Companies House register, 1 Oct 2026

Whonderr-Arthur Engineering Limited is a 10-year-old private limited company registered in Hounslow, company number 09969443, one of 154 property development companies in Hounslow. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.

Key dates

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

Accounts due
31 Oct 2026
in 19 days
For the period to 31 Jan 2026
CT600 due
31 Jan 2027
in 111 days
Period 1 Feb 2025 to 31 Jan 2026
Corporation tax payment
1 Nov 2026
in 20 days
9 months and 1 day after the period end
Confirmation statement
8 Feb 2027
in 119 days
Last made up to 25 Jan 2026

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 Whonderr-Arthur Engineering Limited

Or 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 £2,204 (-32.7%) on the year before, to £4,538.
  • Net assets rose in 4 of 8 year-on-year comparisons on record.
  • Current assets of £26K against £9,158 owed within a year: 2.9 times cover.
  • 1 employee on average, down from 2 the year before.
  • Balance sheets on record for 9 years, 2017 to 2025.

Net assets by year

Net assets at each year end, 2017 to 2025£0£5,000£10K31 January 2017: net assets £1,504£1,504201731 January 2018: net assets £7,057£7,057201831 January 2019: net assets £9,099£9,099201931 January 2020: net assets £6,202£6,202202031 January 2021: net assets £4,925£4,925202131 January 2022: net assets £8,674£8,674202231 January 2023: net assets £10K£10K202331 January 2024: net assets £6,742£6,742202431 January 2025: net assets £4,538£4,5382025
Net assets at each year end, 2017 to 2025£0£5,000£10K31 January 2017: net assets £1,504£1,504'1731 January 2018: net assets £7,057£7,057'1831 January 2019: net assets £9,099£9,099'1931 January 2020: net assets £6,202£6,202'2031 January 2021: net assets £4,925£4,925'2131 January 2022: net assets £8,674£8,674'2231 January 2023: net assets £10K£10K'2331 January 2024: net assets £6,742£6,742'2431 January 2025: net assets £4,538£4,538'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Jan 2025£4,538£26K£9,1581
31 Jan 2024£6,742£383£27K£9,7702
31 Jan 2023£10K£30K£7,6993
31 Jan 2022£8,674£30K£9,1043
31 Jan 2021£4,925£186£25K£5,2891
31 Jan 2020£6,202£913£10K£4,2261
31 Jan 2019£9,099£5,0091
31 Jan 2018£7,057£3,7861
31 Jan 2017£1,504£1,044

Where Whonderr-Arthur Engineering Limited is registered

Whonderr-Arthur Engineering Limited's registered office on a map of the UK

The registered office is in Hounslow (TW3), in the Hounslow local authority area, London. Show TW3 1XZ on a map.

Other trade companies in TW3

What happens if Whonderr-Arthur Engineering 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 October 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Nov 2026 to 30 Nov 2026£150
1 to 3 months late1 Dec 2026 to 31 Jan 2027£375
3 to 6 months late1 Feb 2027 to 30 Apr 2027£750
More than 6 months lateFrom 1 May 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Feb 2027£200
3 months late30 Apr 2027another £200
6 months late31 Jul 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jan 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
09969443
Status
Active
Company type
Private limited company
Incorporated
26 January 2016 (10 years ago)
Registered office
26 Dashwood Court, 40 Livingstone Road, Hounslow, TW3 1XZ
Nature of business
Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Construction of roads and motorways (SIC 42110)
Year end
31 January (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 January 2025
Last confirmation statement
25 January 2026

Filing notes for property development companies

Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.

Similar companies in Hounslow

Other active property development companies registered in Hounslow.

All property development companies in Hounslow · All trades in Hounslow · Property developers across the UK

Frequently asked questions

When are Whonderr-Arthur Engineering Limited's accounts due?

Whonderr-Arthur Engineering Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.

When is Whonderr-Arthur Engineering Limited's CT600 due?

The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.

Is Whonderr-Arthur Engineering Limited still trading?

Whonderr-Arthur Engineering 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 Whonderr-Arthur Engineering Limited do?

Whonderr-Arthur Engineering Limited is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Construction of roads and motorways (SIC 42110).

How old is Whonderr-Arthur Engineering Limited?

Whonderr-Arthur Engineering Limited was incorporated on 26 January 2016, 10 years ago.

What is the penalty if Whonderr-Arthur Engineering 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 Whonderr-Arthur Engineering 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.

File accounts + CT600File now£49Let's talk