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SI

South Island Estate Limited

Newport
SME

Callaghan Property specializes in investment, development, and consultancy in the property sector. The company is led by Nick Callaghan, who has extensive experience in connecting clients with opportunities and managing property projects.

callaghanproperty.com ↗

Summary from the supplier’s website — unverified

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Awarded
£400k
Live
1
Buyers
1
12m
£375k
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts1 / 3
  • Top buyers1
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — South Island Estate LimitedUpdated 10 Aug 2026

At a glance · for buyers and watchdogs

South Island Estate Limited has won £400k across 1 public-sector buyer, with 1 live contract. No active Companies House risk flags.

Why: top buyer Isle of Wight Council at 100% · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
1 of 3Live contracts
100%Top-buyer concentration
—Category exposure
0Contract modifications
If you're a buyer:CapabilitiesReferencesKPIComplianceWatchdog?FlagsModificationsConcentrationNews

Social value

Commitments mapped to the Government Social Value Model themes.

⚑ Self-reported
—

No social-value commitments yet

Jobs, skills, environmental, inequality and community commitments appear here once a claimed supplier attributes them to awarded contracts, or once we detect them on the supplier’s website.

ESG & policies vault · 0/5

Key governance & sustainability policies. Published documents link out; missing ones are greyed.

↔ Cross-checked
Net-zero planNot provided✓
Modern slavery statementNot provided✓
EDI policyNot provided✓
Anti-briberyNot provided✓
Data protectionNot provided✓

Capabilities

What this supplier does, where they sit, who they sell to.

◐ From website & notices
Services · 6
Investment
Development
Consultancy
AcquisitionsDisposalsPublic Sector

Extracted automatically from callaghanproperty.com on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Case studies

Delivery stories the supplier has published, with sector and outcome.

⚑ Self-reported
—

No case studies yet

Once a claimed supplier publishes delivery stories — the buyer, the sector, what was delivered and the outcome — they appear here.

Buyer references

Named public-sector contacts who have agreed to act as a reference.

✓ Confirmed by buyer
—

No buyer references yet

Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.

Accreditations & memberships

Independently issued. Verification dates cross-checked against issuer registers.

↔ Cross-checked
—

No accreditations recorded

B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.

KPI performance

Delivery, budget and satisfaction scores reported quarterly by buyers.

✓ Verified
84

No verified KPI scores yet

Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.

Contracts · 1 live · 2 historic

Pulled from Contracts Finder & Find a Tender. Most recent first.

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
Property Development Consultancy Services
Isle of Wight Council—01 Apr 2026£375k3 yrspending
Development consultancy services contract
Isle of Wight Council7322000008 Sept 2023£25k7 moClosed
Property Development Consultancy Services
Isle of Wight Council————Live
Total live value — · mean award £133k

Top buyers · 1 buyers · top 3 = 100%

Share of awarded value. Concentration fires above 40% for any single buyer.

✓ From notices
1
Isle of Wight Council
3 contracts
100%
since 2023

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
South East3 contracts
100%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). South Island Estate Limited highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
WU
WSP UK Limited
No£31.6m20
OA
ove arup limited
No£12.6m19
WU
WSP UK Ltd - SPaTS 1
No£6.3m17
OA
OVE ARUP & PARTNERS LIMITED
No£6.2m23
SA
SPaTS Atkins and CH2M Joint Venture
No£5.5m5
SI
South Island Estate Limited
Yes£375k—
Compare peers →

Red flags · 0 active

Automated scan of Companies House status, charges and insolvency records.

✓ Verified
✓ Clean. No active risk signals from Companies House status, charges or insolvency records.

Compliance scorecard

Derived from Companies House filings — not a full supplier-assurance check.

↔ Cross-checked
Trading status
Active
Live at Companies House
Annual accounts
Up to date
Last made up to 31 Mar 2025
Confirmation statement
Up to date
Next due 27 Mar 2027
Outstanding charges
0
No charges registered
Insolvency history
None
No insolvency cases registered
Certifications (ISO, Cyber Essentials, Living Wage, B-Corp, modern-slavery) are supplier self-reported and appear once a claimed profile adds them.

Modifications

Variations to awarded contracts logged under Procurement Act 2023 s.74.

✓ From notices
±

No modifications recorded

No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.

News mentions

UK trade press & nationals, matched to this supplier.

◰

No news mentions found

We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.

Companies House

Live sync — registered details, directors, PSC and SIC codes.

✓ Live sync

Registered details

Company no.
10060075
Status
Active
Type
Private limited
Incorporated
13 Mar 2016
Reg. office
1 Langley Court, Pyle Street, Newport, Isle Of Wight, PO30 1LA
SIC codes
71111
Last accounts
31 Mar 2025
Next accounts due
30 Dec 2026

Directors & PSC

  • CALLAGHAN, Nicholas George — director
    Appointed 13 Mar 2016
  • Mr Nicholas George Callaghan — person with significant control
    ownership of shares 75 to 100 percent · voting rights 75 to 100 percent

Financial

Filed accounts from Companies House.

↔ From Cos House
£

No financial filings on record

Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.

Org tree

Group structure and ownership.

↔ From Cos House
SOUTH ISLAND ESTATES LIMITED
10060075 · this company

Independent. No parent company or subsidiaries recorded at Companies House for this entity.