- Company number
- 15257011
- Incorporated
- 2 Nov 20232 years trading
- Registered office
- 105 Little Grove Field, Harlow, CM19 4BY
- Nature of business
- Construction of domestic buildings
Key Builds & Maintenance Ltd is a 2-year-old private limited company registered in Harlow, company number 15257011, one of 223 building contractors in Harlow. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £2,221 on the year before, to £2,222.
- Current assets of £6,815 against £8,994 owed within a year: 0.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £2,222 | £6,815 | £8,994 | 1 | |
| 30 Nov 2024 | £1 |
Who runs and owns Key Builds & Maintenance Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** K*** | Director | Nov 2023 |
Person with significant control
Where Key Builds & Maintenance Ltd is registered
The registered office is in Harlow (CM19), in the Harlow local authority area, East of England. Show CM19 4BY on a map.
Other trade companies in CM19
- Precision Refits LtdSpecialist contractors
- Solido London LimitedInstallers
- LC Painters LimitedPainters and decorators
- Paul the Gas LtdPlumbers and heating engineers
- Chun-Keys Watches LtdRepair services
- Vpa Detailing and Valeting LimitedCleaning companies
- Herd Property Services LtdFinishing trades
- Crisp & Clean Services LtdCleaning companies
What happens if Key Builds & Maintenance Ltd 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 15257011
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 November 2023 (2 years ago)
- Registered office
- 105 Little Grove Field, Harlow, CM19 4BY
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 1 November 2025
- Previous names
- Key Plastering and General Building Ltd (until 16 Sep 2025)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Harlow
Other active building contractors registered in Harlow.
- KFK Building Services Ltd2023
- Kofstel Engineering Limited2020
- Kosmos Constructions Ltd2021
- Kubel Ltd2022
- Laudamac Ltd2020
- LD1 Limited2019
- LD5 Ltd2017
- Leaside Leisure Limited1993
All building contractors in Harlow · All trades in Harlow · Builders across the UK
Frequently asked questions
When are Key Builds & Maintenance Ltd's accounts due?
Key Builds & Maintenance Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Key Builds & Maintenance Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Key Builds & Maintenance Ltd still trading?
Key Builds & Maintenance Ltd 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 Key Builds & Maintenance Ltd do?
Key Builds & Maintenance Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Key Builds & Maintenance Ltd?
Key Builds & Maintenance Ltd was incorporated on 2 November 2023, 2 years ago.
Who runs Key Builds & Maintenance Ltd?
Key Builds & Maintenance Ltd has 1 active director, the longest-serving appointed in Nov 2023. Their names and service addresses are on the Companies House register.
Who owns Key Builds & Maintenance Ltd?
One person or company has significant control of Key Builds & Maintenance Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Key Builds & Maintenance Ltd 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 Key Builds & Maintenance Ltd 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.