Rockstone Court, Flat 9, Rockstone Lane, Southampton, SO14 6HZ
About Rockstone Court
Rockstone Court is a mid-terrace house in Southampton (SO14 6HZ). It has a recorded floor area of 45 m² (around 484 sq ft) and construction records dating it to 1991-1995. At 45 m² this is the 4th smallest of 9 units on EPC record in Rockstone Court, where floor areas span 43–55 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (78 versus a worst of 52). The latest certificate (June 2021) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since April 2010. Between certificates, hot-water efficiency went from Poor to Average. The recommended improvements would push it to B (score 84). Main heating runs on electricity.
Today's modelled estimate of £173,000 sits 154.4% above the 2025 sale of £68,000. On a £-per-square-foot basis, the last sale (£140/sq ft) was about 45.7% below the postcode norm. A recent sale: £68,000 in July 2025. One planning record on file: new windows approved in 2025. Past consents include new windows, meaningful when judging how the property has evolved. At 45 m² it's 15.9% smaller than the typical home in the postcode (54 m² median across 58 EPCs). Its energy rating outperforms most of the postcode (better than 78% of similar EPCs).
Energy performance
EPC Rating
Certificate validity
Valid until 23 June 2031
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
1 application on record at Rockstone Court, Flat 9, Rockstone Lane, Southampton, SO14 6HZ
- Mar 2025RenovationFullOutcome in report
Replacement windows and doors
New Windows- Documents
- 8 docs on file
- Reference
- 25/00028/FUL
Unlock Rockstone Court, Flat 9, Rockstone Lane, Southampton, SO14 6HZ's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 38 notable nearby
- The 8 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
£173,000
Modelled from EPC, postcode comparables.
£68,000
Recorded with HM Land Registry.
Sales timeline
9 July 2025Most recent
£68,000
Median price across the last 5 sales in SO14 6HZ: £232,500 (2026–2025).
Nearby sales in SO14 6HZ
40 Rockstone Lane, Southampton, SO14 6HZ
Sold Jan 2026
£238,00037 Rockstone Lane, Southampton, SO14 6HZ
Sold Sept 2025
£232,50041 Rockstone Lane, Southampton, SO14 6HZ
Sold Jul 2025
£385,000Rockstone Court, Flat 5, Rockstone Lane, Southampton, SO14 6HZ
Sold Jul 2025
£95,000Rockstone Court, Flat 15, Rockstone Lane, Southampton, SO14 6HZ
Sold Jun 2025
£112,000
Versus other Rockstone Lane homes
On years held, Rockstone Court runs well behind the street norm.
Price per m²
£1,511
Street avg £1,956
Floor Area
45 m²
Street avg 47 m²
Habitable Rooms
3 rooms
Street avg 2 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.8 t/year
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The neighbourhood at a glance
Crime
413/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Denzil Avenue — bus stop.
Closest school
0.3 km
Mount Pleasant Juniors. 40 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
55.1dB

Night-time· 23:00 – 07:00
44.9dB







