1. Companies
  2. Property developers
  3. Portsmouth
  4. SG Southern Limited

SG Southern Limited

ActiveTotal exemption (full) accountsProperty developersPortsmouth
Company number
09579441
Incorporated
7 May 201511 years trading
Registered office
C/O Ency Associates Printware Court, Cumberland Business Centre, Portsmouth, Hampshire, PO5 1DS
Nature of business
Development of building projects
Accounts due in
138 days
28 Feb 2027
Net assets
£430K▼
-29.2% on the year before
Cash at bank
£2,256▼
At 31 May 2025
Employees
0
Average during the year
From the Companies House register, 1 Oct 2026

SG Southern Limited is a 11-year-old private limited company registered in Portsmouth, company number 09579441, one of 219 property development companies in Portsmouth. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 29 May 2026 is due at HMRC on 29 May 2027.

Key dates

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

Accounts due
28 Feb 2027
in 138 days
For the period to 29 May 2026
CT600 due
29 May 2027
in 228 days
Period 1 Jun 2025 to 29 May 2026
Corporation tax payment
1 Mar 2027
in 139 days
9 months and 1 day after the period end
Confirmation statement
21 May 2027
in 220 days
Last made up to 7 May 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 SG Southern 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 £177K (-29.2%) on the year before, to £430K.
  • Net assets rose in 6 of 9 year-on-year comparisons on record.
  • 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

Net assets at each year end, 2016 to 2025£0£250K£500K31 May 2016: net assets -£39K-£39K201631 May 2017: net assets -£45K-£45K201731 May 2018: net assets £528K£528K201831 May 2019: net assets £537K£537K201931 May 2020: net assets £574K£574K202031 May 2021: net assets £586K£586K202131 May 2022: net assets £637K£637K202231 May 2023: net assets £637K£637K202331 May 2024: net assets £608K£608K202431 May 2025: net assets £430K£430K2025
Net assets at each year end, 2016 to 2025£0£250K£500K31 May 2016: net assets -£39K-£39K'1631 May 2017: net assets -£45K-£45K'1731 May 2018: net assets £528K£528K'1831 May 2019: net assets £537K£537K'1931 May 2020: net assets £574K£574K'2031 May 2021: net assets £586K£586K'2131 May 2022: net assets £637K£637K'2231 May 2023: net assets £637K£637K'2331 May 2024: net assets £608K£608K'2431 May 2025: net assets £430K£430K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 May 2025£430K£2,256£305K0
31 May 2024£608K£64K£415K0
31 May 2023£637K£510K£471K0
31 May 2022£637K£4,413£499K0
31 May 2021£586K£703£421K0
31 May 2020£574K£30K£419K0
31 May 2019£537K£1,210£422K
31 May 2018£528K£13K£13K£434K
31 May 2017-£45K£384£1.4M£1.5M
31 May 2016-£39K£66K£1M£1M

Where SG Southern Limited is registered

SG Southern Limited's registered office on a map of the UK

The registered office is in Portsmouth (PO5), in the Portsmouth local authority area, South East. Show PO5 1DS on a map.

Other trade companies in PO5

Shared registered office

30 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 SG Southern 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 28 February 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Mar 2027 to 31 Mar 2027£150
1 to 3 months late1 Apr 2027 to 31 May 2027£375
3 to 6 months late1 Jun 2027 to 31 Aug 2027£750
More than 6 months lateFrom 1 Sep 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late30 May 2027£200
3 months late29 Aug 2027another £200
6 months late29 Nov 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late29 May 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
09579441
Status
Active
Company type
Private limited company
Incorporated
7 May 2015 (11 years ago)
Registered office
C/O Ency Associates Printware Court, Cumberland Business Centre, Portsmouth, Hampshire, PO5 1DS
Nature of business
Development of building projects (SIC 41100)
Year end
29 May (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 May 2025
Last confirmation statement
7 May 2026
Charges (mortgages)
3 outstanding of 6 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 Portsmouth

Other active property development companies registered in Portsmouth.

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

Frequently asked questions

When are SG Southern Limited's accounts due?

SG Southern Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 29 May 2026.

When is SG Southern Limited's CT600 due?

The CT600 for the period to 29 May 2026 is due at HMRC by 29 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.

Is SG Southern Limited still trading?

SG Southern 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 SG Southern Limited do?

SG Southern Limited is registered under Development of building projects (SIC 41100).

How old is SG Southern Limited?

SG Southern Limited was incorporated on 7 May 2015, 11 years ago.

What is the penalty if SG Southern 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 SG Southern 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