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Mamo Building Services Limited

ActiveTotal exemption (full) accountsProperty developersArmagh
Company number
NI633833
Incorporated
24 Sep 201511 years trading
Registered office
18 Ballyards Road, Milford, Armagh, BT60 3NS
Nature of business
Development of building projects; Other specialised construction activities n.e.c.
Accounts due in
260 days
30 Jun 2027
Net assets
£1.5M▲
+40.1% on the year before
Cash at bank
£313K▲
At 30 Sep 2025
Employees
84
Average during the year
From the Companies House register, 1 Oct 2026

Mamo Building Services Limited is a 11-year-old private limited company registered in Armagh, company number NI633833, one of 53 property development companies in Armagh. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.

Key dates

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

Accounts due
30 Jun 2027
in 260 days
For the period to 30 Sep 2026
CT600 due
30 Sep 2027
in 352 days
Period 1 Oct 2025 to 30 Sep 2026
Corporation tax payment
1 Jul 2027
in 261 days
9 months and 1 day after the period end
Confirmation statement
7 Oct 2026
Date passed; check the register
Last made up to 23 Sep 2025

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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 £427K (+40.1%) on the year before, to £1.5M.
  • Net assets rose in 9 of 9 year-on-year comparisons on record.
  • Current assets of £2M against £1.1M owed within a year: 1.8 times cover.
  • 84 employees on average, down from 87 the year before.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£500K£1M30 September 2016: net assets £11K£11K201630 September 2017: net assets £19K£19K201730 September 2018: net assets £84K£84K201830 September 2019: net assets £171K£171K201930 September 2020: net assets £332K£332K202030 September 2021: net assets £366K£366K202130 September 2022: net assets £455K£455K202230 September 2023: net assets £658K£658K202330 September 2024: net assets £1.1M£1.1M202430 September 2025: net assets £1.5M£1.5M2025
Net assets at each year end, 2016 to 2025£0£500K£1M30 September 2016: net assets £11K£11K'1630 September 2017: net assets £19K£19K'1730 September 2018: net assets £84K£84K'1830 September 2019: net assets £171K£171K'1930 September 2020: net assets £332K£332K'2030 September 2021: net assets £366K£366K'2130 September 2022: net assets £455K£455K'2230 September 2023: net assets £658K£658K'2330 September 2024: net assets £1.1M£1.1M'2430 September 2025: net assets £1.5M£1.5M'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Sep 2025£1.5M£313K£2M£1.1M84
30 Sep 2024£1.1M£163K£2.4M£1.7M87
30 Sep 2023£658K£36K£972K£580K62
30 Sep 2022£455K£94K£713K£407K25
30 Sep 2021£366K£16K£562K£307K18
30 Sep 2020£332K£81K£520K£210K21
30 Sep 2019£171K£6,452£374K£239K23
30 Sep 2018£84K£284£319K£247K
30 Sep 2017£19K£0£272K£261K
30 Sep 2016£11K£8,465£72K£60K

Public contracts won

Mamo Building Services Limited has 4 public sector contract awards on record; the ones with their own published value total £114K, from 2021 to 2026. Source: Contracts Finder and Find a Tender award notices. For 3 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 2 of these were matched by the company's exact name because the notice gave no company number.

Awards by year

20211
20231
20262

Main buyers

  • Northern Ireland Housing Executive2 awards
  • Newry, Mourne and Down District Council (NMD)1 award
  • Fusion 21 Foundation1 award
BuyerContractValueAwarded
Newry, Mourne and Down District Council (NMD)ITT 31/2026 - PEACEPLUS PP1024 Schomberg Society Kilkeel Refurbishment Project Retender£114K17 Sep 2026
Fusion 21 FoundationResponsive Repairs & Void Property Framework (2026-30)Ceiling, not shown7 Sep 2026
Northern Ireland Housing ExecutiveRESPONSE MAINTENANCE SOUTH AREA (excluding Craigavon)Ceiling, not shown22 Aug 2023
Northern Ireland Housing ExecutiveCT0102 - DLO Minor WorksCeiling, not shown21 Dec 2021

Where Mamo Building Services Limited is registered

Mamo Building Services Limited's registered office on a map of the UK

The registered office is in Armagh (BT60), in the Armagh City, Banbridge and Craigavon local authority area, Northern Ireland. Show BT60 3NS on a map.

Other trade companies in BT60

What happens if Mamo Building Services 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 30 June 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jul 2027 to 31 Jul 2027£150
1 to 3 months late1 Aug 2027 to 30 Sep 2027£375
3 to 6 months late1 Oct 2027 to 31 Dec 2027£750
More than 6 months lateFrom 1 Jan 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Oct 2027£200
3 months late30 Dec 2027another £200
6 months late30 Mar 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Sep 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
NI633833
Status
Active
Company type
Private limited company
Incorporated
24 September 2015 (11 years ago)
Registered office
18 Ballyards Road, Milford, Armagh, BT60 3NS
Nature of business
Development of building projects (SIC 41100)
Other specialised construction activities n.e.c. (SIC 43999)
Year end
30 September (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
30 September 2025
Last confirmation statement
23 September 2025
Charges (mortgages)
0 outstanding of 1 registered

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 Armagh

Other active property development companies registered in Armagh.

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

Frequently asked questions

When are Mamo Building Services Limited's accounts due?

Mamo Building Services Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.

When is Mamo Building Services Limited's CT600 due?

The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.

Is Mamo Building Services Limited still trading?

Mamo Building Services 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 Mamo Building Services Limited do?

Mamo Building Services Limited is registered under Development of building projects (SIC 41100); Other specialised construction activities n.e.c. (SIC 43999).

How old is Mamo Building Services Limited?

Mamo Building Services Limited was incorporated on 24 September 2015, 11 years ago.

Has Mamo Building Services Limited won public sector contracts?

Yes. Mamo Building Services Limited has 4 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £114K), most recently from Newry, Mourne and Down District Council (NMD).

What is the penalty if Mamo Building Services 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 Mamo Building Services 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.

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