- Companies
- Civil engineering
- Maidenhead
- Courtesy Building Limited
Courtesy Building Limited
- Company number
- 00652406
- Incorporated
- 14 Mar 196066 years trading
- Registered office
- 11 Castle Hill, Maidenhead, Berks, SL6 4AA
- Nature of business
- Construction of other civil engineering projects n.e.c.
Courtesy Building Limited is a 66-year-old private limited company registered in Maidenhead, company number 00652406, one of 16 civil engineering contractors in Maidenhead. 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.
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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 up £7,385 (+8.4%) on the year before, to £95K.
- Net assets rose in 9 of 9 year-on-year comparisons on record.
- Current assets of £38K against £6,935 owed within a year: 5.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 | £95K | £8,091 | £38K | £6,935 | 0 |
| 31 Mar 2024 | £88K | £8,601 | £30K | £6,159 | 0 |
| 31 Mar 2023 | £81K | £7,780 | £22K | £5,320 | 0 |
| 31 Mar 2022 | £73K | £7,190 | £14K | £5,008 | 0 |
| 31 Mar 2021 | £66K | £4,479 | £2,512 | 0 | |
| 31 Mar 2020 | £64K | £3,240 | £2,981 | 0 | |
| 31 Mar 2019 | £62K | £1,598 | £2,996 | ||
| 31 Mar 2018 | £62K | £1,644 | £3,067 | ||
| 31 Mar 2017 | £62K | £1,618 | £3,244 | ||
| 31 Mar 2016 | £62K | £1,685 | £3,368 |
Who runs and owns Courtesy Building Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (5)
| Name | Role | Appointed |
|---|---|---|
| S*** C*** | Director | Sep 1996 |
| S*** C*** | Director | Sep 1996 |
| D*** C*** | Director | Jan 2001 |
| D*** C*** | Director | Jan 2001 |
| S*** C*** | Secretary | before Dec 1991 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| D*** C*** | Director | Sep 1996 |
People with significant control (2)
Where Courtesy Building Limited is registered
The registered office is in Maidenhead (SL6), in the Windsor and Maidenhead local authority area, South East. Show SL6 4AA on a map.
Other trade companies in SL6
- B&M Cleaning Solutions LtdCleaning companies
- CC Garden Builds LtdBuilders
- Austin Groundwork Surfaces LimitedGroundworks and demolition
- Woodnest Interiors LtdJoiners and carpenters
- Carizmatic Company LimitedMotor traders
- Sakura Electrical LtdElectricians
- Elite Autos & Tyres LtdMotor traders
- Bigfrith End LtdSpecialist contractors
Shared registered office
51 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 Courtesy Building 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
- 00652406
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 March 1960 (66 years ago)
- Registered office
- 11 Castle Hill, Maidenhead, Berks, SL6 4AA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 4 March 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 Maidenhead
Other active civil engineering contractors registered in Maidenhead.
- Craftlast Limited2007
- Farncombe Smith 1990 Ltd.1991
- Greene Construction Solutions Ltd2010
- JM Electrical (Southern) Ltd2020
- Nortech Precision Engineering Limited2012
- P K Construction London Ltd2018
- SD Projects Ltd1999
- Sharp Rail Engineering Services Ltd2014
All civil engineering contractors in Maidenhead · All trades in Maidenhead · Civil engineering across the UK
Frequently asked questions
When are Courtesy Building Limited's accounts due?
Courtesy Building 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 Courtesy Building 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 Courtesy Building Limited still trading?
Courtesy Building 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 Courtesy Building Limited do?
Courtesy Building Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Courtesy Building Limited?
Courtesy Building Limited was incorporated on 14 March 1960, 66 years ago.
Who runs Courtesy Building Limited?
Courtesy Building Limited has 4 active directors, the longest-serving appointed in Sep 1996. Their names and service addresses are on the Companies House register.
Who owns Courtesy Building Limited?
2 people or companies have significant control of Courtesy Building Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Courtesy Building 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 Courtesy Building 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.