23a, Williams Road, Bosham, Chichester, PO18 8JR
About 23a
23a is a one-bedroom detached house in Bosham, Chichester, Chichester (PO18 8JR). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (November 2021) shows a D (score 57), a step below the typical UK home. When first surveyed in May 2011 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good. The recommended improvements would push it to C (score 73). At 50 m² this is the 4th smallest of 26 units on EPC record in the building, where floor areas span 37–123 m². The building's EPC ratings span F to B across 26 units on file.
Across 2000–2022, sale prices on this property compounded at 4.9% per year. Today's modelled estimate of £200,000 is 17.6% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£316/sq ft) was about 32% above the typical sold price in the postcode. At 50 m² it's 16.7% smaller than the typical home in the postcode (60 m² median across 25 EPCs). Most recent transfer: November 2022 at £170,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 23a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms1
- Bathrooms1
- Open-plan layoutYes
- Dining roomYes
Outside
- Private gardenYes
- ParkingAllocated
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
23a has no planning applications on record.
Notable planning nearby
18applications of note in the surrounding area
We flagged 1 thing worth checking at 23a
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
23a has more than doubled in price since the earliest registered sale in 2000.
£200,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 23 years.
£170,000
Growth on file: 4.9% per year over 23 years.
Sales timeline
25 November 2022Most recent
£170,000
+107.3%over 20 years25 July 2002
£82,000
+42.6%over 2 years16 February 2000
£57,500
Median price across the last 5 sales in PO18 8JR: £264,000 (2025–2023).
Nearby sales in PO18 8JR
15 Williams Road, Bosham, Chichester, PO18 8JR
Sold Aug 2025
£264,0003 Williams Road, Bosham, Chichester, PO18 8JR
Sold Jan 2025
£320,00045 Williams Road, Bosham, Chichester, PO18 8JR
Sold Apr 2024
£415,00051a, Williams Road, Bosham, Chichester, PO18 8JR
Sold Nov 2023
£160,00023 Williams Road, Bosham, Chichester, PO18 8JR
Sold Aug 2023
£197,500
Everything we know about 23a, 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 Williams Road homes
On epc rating, 23a runs well behind the street norm.
Price per m²
£3,400
Street avg £2,911
Floor Area
50 m²
Street avg 51 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.2 t/year
Street avg 2.5 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Bosham Rail Station — railway station.
Closest school
0.9 km
Bosham Primary School. 4 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
50.9dB

Night-time· 23:00 – 07:00
42.7dB