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  4. Keller Construction Ltd

Keller Construction Ltd

ActiveTotal exemption (full) accountsBuildersDerby
Company number
05121985
Incorporated
7 May 200422 years trading
Registered office
Prospect House 1 Prospect Place, Millennium Way, Pride Park, Derby, DE24 8HG
Nature of business
Construction of domestic buildings
Accounts due in
80 days
31 Dec 2026
Net assets
£1.3M▼
-52.5% on the year before
Cash at bank
£231K▼
At 31 Mar 2025
Employees
0
Average during the year
From the Companies House register, 1 Oct 2026

Keller Construction Ltd is a 22-year-old private limited company registered in Derby, company number 05121985, one of 353 building contractors in Derby. 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.

Accounts due
31 Dec 2026
in 80 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 170 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 81 days
9 months and 1 day after the period end
Confirmation statement
27 Mar 2027
in 166 days
Last made up to 13 Mar 2026

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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 down £1.5M (-52.5%) on the year before, to £1.3M.
  • Net assets rose in 7 of 9 year-on-year comparisons on record.
  • Current assets of £3.2M against £1.3M owed within a year: 2.4 times cover.
  • No employees reported for the latest year (directors are often not counted as employees).
  • Balance sheets on record for 10 years, 2015 to 2025.

Net assets by year

Net assets at each year end, 2015 to 2025£0£1M£2M30 November 2015: net assets £619K£619K201530 November 2016: net assets £941K£941K201630 November 2017: net assets £1.1M£1.1M201730 November 2018: net assets £1.4M£1.4M201830 November 2019: net assets £1.4M£1.4M201931 March 2021: net assets £1.7M£1.7M202131 March 2022: net assets £2.1M£2.1M202231 March 2023: net assets £2.6M£2.6M202331 March 2024: net assets £2.8M£2.8M202431 March 2025: net assets £1.3M£1.3M2025
Net assets at each year end, 2015 to 2025£0£1M£2M30 November 2015: net assets £619K£619K'1530 November 2016: net assets £941K£941K'1630 November 2017: net assets £1.1M£1.1M'1730 November 2018: net assets £1.4M£1.4M'1830 November 2019: net assets £1.4M£1.4M'1931 March 2021: net assets £1.7M£1.7M'2131 March 2022: net assets £2.1M£2.1M'2231 March 2023: net assets £2.6M£2.6M'2331 March 2024: net assets £2.8M£2.8M'2431 March 2025: net assets £1.3M£1.3M'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£1.3M£231K£3.2M£1.3M0
31 Mar 2024£2.8M£641K£7M£3.4M7
31 Mar 2023£2.6M£451K£3.9M£1.3M7
31 Mar 2022£2.1M£652K£2.4M£474K7
31 Mar 2021£1.7M£399K£2M£585K7
30 Nov 2019£1.4M£520K£1.7M£474K8
30 Nov 2018£1.4M£668K£1.4M£249K8
30 Nov 2017£1.1M£183K£1.3M£343K5
30 Nov 2016£941K£439K£1.2M£321K
30 Nov 2015£619K£282K£872K£345K

Public contracts won

Keller Construction Ltd has one public sector contract award on record; the ones with their own published value total £644K (2018). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.

BuyerContractValueAwarded
Castle Donington Parish CouncilConversion of hotel to Community Hub£644K7 Mar 2018

Where Keller Construction Ltd is registered

Keller Construction Ltd's registered office on a map of the UK

The registered office is in Derby (DE24), in the Derby local authority area, East Midlands. Show DE24 8HG on a map.

Other trade companies in DE24

Also registered at this address

1 other company uses the same registered office as Keller Construction Ltd.

What happens if Keller Construction 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 December 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 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
05121985
Status
Active
Company type
Private limited company
Incorporated
7 May 2004 (22 years ago)
Registered office
Prospect House 1 Prospect Place, Millennium Way, Pride Park, Derby, DE24 8HG
Nature of business
Construction of domestic buildings (SIC 41202)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
13 March 2026
Charges (mortgages)
0 outstanding of 8 registered

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 Derby

Other active building contractors registered in Derby.

All building contractors in Derby · All trades in Derby · Builders across the UK

Frequently asked questions

When are Keller Construction Ltd's accounts due?

Keller Construction Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.

When is Keller Construction Ltd'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 Keller Construction Ltd still trading?

Keller Construction 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 Keller Construction Ltd do?

Keller Construction Ltd is registered under Construction of domestic buildings (SIC 41202).

How old is Keller Construction Ltd?

Keller Construction Ltd was incorporated on 7 May 2004, 22 years ago.

Has Keller Construction Ltd won public sector contracts?

Yes. Keller Construction Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £644K), most recently from CASTLE DONINGTON PARISH COUNCIL.

What is the penalty if Keller Construction 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 Keller Construction Ltd 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.

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