21a, Gordon Road, Southbourne, Emsworth, PO10 8AZ
About 21a
21a is a semi-detached house in Southbourne, Emsworth, Emsworth (PO10 8AZ). It has a recorded floor area of 109 m² (around 1173 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (April 2012) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). The latest certificate is from April 2012, so improvements made since then won't be reflected.
At 109 m² the property is well over the postcode median (79 m² across 41 EPCs), placing it in the larger end of the local stock. Across 1995–2012, sale prices on this property compounded at 9.5% per year. Today's modelled estimate of £438,000 sits 56.4% above the 2012 sale of £280,000. 14 years since the last transfer (August 2012). Across the public record there are 4 sales, relatively high churn for a single property. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved.
Know exactly what you're buying at 21a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
21a's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 24 Apr 2022
EPC Rating
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Nov 2012ExtensionFullIn report
Extension: Single storey · Rear of property
Single storey rear extension.
- Agent
- Martin Critchley, Architect
- Documents
- 10 docs on file
- Reference
- 12/04133/DOM
- May 2004Loft ConversionFullIn report
Loft conversion with dormers to front and rear elevations.
- Documents
- 9 docs on file
- Reference
- 04/01235/DOM
We flagged 1 thing worth checking at 21a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Price for 21a has grown more than fourfold since the 1995 starting point.
£438,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.5% per year over 17 years.
£280,000
Growth on file: 9.5% per year over 17 years.
Sales timeline
23 August 2012Most recent
£280,000
+27.3%over 7 years1 September 2004
£220,000
+157.3%over 5 years22 October 1998
£85,500
+42.5%over 3 years28 September 1995
£60,000
Median price across the last 5 sales in PO10 8AZ: £425,000 (2025–2024).
Nearby sales in PO10 8AZ
6 Gordon Road, Southbourne, Emsworth, PO10 8AZ
Sold Oct 2025
£480,00016 Gordon Road, Southbourne, Emsworth, PO10 8AZ
Sold Apr 2025
£350,00010a, Gordon Road, Southbourne, Emsworth, PO10 8AZ
Sold Nov 2024
£422,50031 Gordon Road, Southbourne, Emsworth, PO10 8AZ
Sold Oct 2024
£425,00011 Gordon Road, Southbourne, Emsworth, PO10 8AZ
Sold May 2024
£517,500
Everything we know about 21a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Gordon Road homes
On floor area, 21a stands well clear of the street.
Price per m²
£2,569
Street avg £3,928
Floor Area
109 m²
Street avg 84 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.8 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Thorney Road — bus stop.
Closest school
1.1 km
Bourne Community College. 7 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
46.7dB

Night-time· 23:00 – 07:00
39.2dB