21 Chetwynd Drive, Southampton, SO16 3HY
About 21 Chetwynd Drive
21 Chetwynd Drive is a five-bedroom detached house in Southampton (SO16 3HY). It has a recorded floor area of 196 m² (around 2110 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (November 2022) shows a C (score 71). When first surveyed in July 2017 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and hot-water efficiency went from Average to Good; while wall efficiency dropped from Good to Average and lighting dropped from Average to Poor. Other recorded features include a conservatory. Period features are noted in the property record.
At 196 m² the property is well over the postcode median (140 m² across 13 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 5 bedrooms is on the larger side for this postcode, where 4 is the typical count. One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Across 2018–2023, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £701,000 is 11.3% above the 2023 sale price. Sold June 2023 for £630,000.
What this property has
Inside
- Bedrooms5
- Bathrooms2
- CloakroomYes
- EnsuiteYes
- ConservatoryYes
Outside
- Private gardenWest-facing
- GarageIntegral
Building
- Period featuresYes
Energy performance
21 Chetwynd Drive ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Roof insulation improved
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,220 · Includes VAT
Planning history
Council records include a two-storey extension at 21 Chetwynd Drive.
1 application on record at 21 Chetwynd Drive, Southampton, SO16 3HY
- Apr 2018ExtensionFullOutcome in report
Extension: Two storey
Erection of a 2-storey front/side extension
- Documents
- 5 docs on file
- Reference
- 18/00304/FUL
Unlock 21 Chetwynd Drive, Southampton, SO16 3HY's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 11 notable nearby
- The 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 21 Chetwynd Drive was the highest on Land Registry record across the postcode.
£701,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 5 years.
£630,000
Growth on file: 4.7% per year over 5 years.
Sales timeline
29 June 2023Most recent
£630,000
+28.6%over 5 years5 January 2018
£490,000
Median price across the last 5 sales in SO16 3HY: £557,555 (2025–2019).
Nearby sales in SO16 3HY
3 Chetwynd Drive, Southampton, SO16 3HY
Sold May 2025
£565,0009 Chetwynd Drive, Southampton, SO16 3HY
Sold Feb 2022
£557,55539 Chetwynd Drive, Southampton, SO16 3HY
Sold Feb 2020
£455,00027 Chetwynd Drive, Southampton, SO16 3HY
Sold Nov 2019
£592,50043 Chetwynd Drive, Southampton, SO16 3HY
Sold Feb 2019
£550,000
Versus other Chetwynd Drive homes
EPC Rating for 21 Chetwynd Drive runs comfortably ahead of the street norm.
Price per m²
£3,214
Street avg £3,326
Floor Area
196 m²
Street avg 144 m²
Habitable Rooms
10 rooms
Street avg 6 rooms
CO₂ Emissions
5.5 t/year
Street avg 6.9 t/year
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Chamberlain Halls — bus stop.
Closest school
0.4 km
Cantell School. 25 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
51.9dB

Night-time· 23:00 – 07:00
43.3dB







