17 SOUTHWICK STREET, BN42 4AD is a Semi-Detached in Brighton, West Sussex, England. It last sold for £299,950 in 2025. Its current EPC rating is E (score 53 out of 100), with potential to reach B. Floor area is approximately 42 m². This works out at about £7,142 per m², 84% above the town average of £3,891 per m² (context, not a valuation). Tenure: Freehold. Local authority: Adur.
17 SOUTHWICK STREET, SOUTHWICK
BRIGHTON, WEST SUSSEX · BN42 4AD
Things you should know
A quick summary of this property, drawn from its records.
It's a semi-detached property, held freehold, with 42 m² of floor area.
Last sold for £299,950 in August 2025 — up 24% since its first recorded sale. · HM Land Registry
That sale works out at ~£7,142/m² — 84% above the town average of £3,891/m² (1,803 sales). · Context, not a valuation
Energy rating EPC E (score 53/100), with potential to reach B. · EPC, inspected 2025
Built Before 1900. · Construction age band, from EPC
Facts from HM Land Registry (sales) and the EPC register (energy), under the Open Government Licence. Area comparisons are context, not a valuation or financial advice. Figures are as per our current dataset, which we're expanding continually.
Property Overview
Key facts from EPC & HM Land Registry records.
Built Form
Semi-Detached
Tenure
Freehold
Floor Area
42 m²
≈ 452 sq ft
Year Built
Before 1900
Construction age band, from EPC
Current EPC Rating
Band E · Score 53/100
Potential Band B · Valid until 14 May 2035
Local Authority
Adur↗
📍 Approximate location based on postcode centroid. Exact pin coming soon.
Value Insights
Price metrics derived from sale price and floor area.
Price per square metre
£7,142 /m²
Based on the 2025 sale
£/m² vs BRIGHTON
+84% above the average sale price
Area avg £3,891/m² · 1,803 sales
Floor area
42 m²
≈ 452 sq ft · from EPC
Last sale price
£299,950
22 August 2025
£/m² over time: 2015: £5,762 → 2025: £7,142
How This Compares
How this property's 2025 sale price of £299,950 compares with the average sale price nearby — based on recorded house prices (not £/m²).
vs BN42 postcode area
BN42 average sale price: £340,388 · based on 2,267 sales
vs BRIGHTON average
BRIGHTON average sale price: £347,556 · based on 2,585 sales
Averages are across all property types sold 2020–2026 in our dataset, so they reflect the mix of homes in the area rather than like-for-like.
Sales History
2 sales recorded
Last sold
£299,950
22 August 2025
Total growth
+23.9%
First → latest sale
Annualised
+2.2%/yr
Average per year (CAGR)
Held for
9.9 yr
Between recorded sales
Price journey
£242,000 → £299,950
2015 → 2025
Price History
How this property's sale price has changed over time.
Sale price history for 17 SOUTHWICK STREET. Sold for £242,000 in 2015 and £299,950 in 2025, an increase of £57,950 (24%), about 2.2% per year.
+£57,950 over 10 years
≈ 2.2% per year
Summary: Sale price history for 17 SOUTHWICK STREET. Sold for £242,000 in 2015 and £299,950 in 2025, an increase of £57,950 (24%), about 2.2% per year.
22 August 2025
Latest£299,950
Semi-Detached · Freehold
28 September 2015
£242,000
Semi-Detached · Freehold
EPC Intelligence
Energy Performance Certificate history for this property.
Energy Efficiency Over Time
Year-on-year EPC score progression for this property.
EPC energy efficiency scores for 17 SOUTHWICK STREET. The property scored 43 (Rating E) in 2014 and 53 (Rating E) in 2025, an improvement of 10 points.
Point improvement
2014 to 2025
Summary: EPC energy efficiency scores for 17 SOUTHWICK STREET. The property scored 43 (Rating E) in 2014 and 53 (Rating E) in 2025, an improvement of 10 points.
Rating E · Score 53
LatestInspected 14 May 2025
Valid until 14 May 2035
Potential
Floor Area
42 m²
Construction Era
Before 1900
CO₂ Emissions
3.2 t/yr
Mains Gas
Yes
Walls
Granite or whinstone, as built, no insulation (assumed)
Very PoorRoof
Pitched, no insulation (assumed)
Very PoorWindows
Full secondary glazing
GoodMain Heating
Boiler and radiators, mains gas
GoodRating E · Score 43
Inspected 4 August 2014
Expired 4 August 2024
Potential
Floor Area
48 m²
Construction Era
Before 1900
CO₂ Emissions
3.3 t/yr
Mains Gas
—
Walls
Granite or whinstone, as built, no insulation (assumed)
Very PoorRoof
Pitched, loft insulation
Very PoorWindows
Single glazed
Very PoorMain Heating
Boiler and radiators, mains gas
GoodiHow is the EPC score calculated?
The score (1–100) is the property's energy efficiency rating, produced by an accredited Domestic Energy Assessor using the UK Government's Standard Assessment Procedure (SAP). A higher score means a more energy-efficient home that's cheaper to run.
It's calculated from the property's physical characteristics, including:
- Size & floor area
- Construction & age
- Wall, roof & floor insulation
- Windows / glazing
- Main heating & controls
- Hot water & lighting
These are the factors shown in the certificates above. The score maps to a band — A (92–100, most efficient) down to G(1–20). The "potential" score is what could be achieved with the recommended improvements. Source: MHCLG EPC Register.
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