21 Castle House, Desborough Road, High Wycombe, HP11 2FP
About 21 Castle House
21 Castle House is a one-bedroom mid-terrace house in High Wycombe (HP11 2FP). It has a recorded floor area of 48 m² (around 517 sq ft). At 48 m² this is the 32nd smallest of 40 units on EPC record in the building, where floor areas span 31–61 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (November 2018) shows a C (score 74). Main heating runs on electricity: electricity, unspecified tariff.
Today's modelled estimate of £211,000 is 11.3% below the 2018 sale of £237,950, an unusual pattern given regional price growth and worth checking against the EPC condition. Sold December 2018 for £237,950.
Know exactly what you're buying at 21 Castle House
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
Outside
- ParkingUnderground
Building
- RefurbishedYes
Energy performance
21 Castle House's carbon output is low for the local stock.
EPC Rating
Planning history
21 Castle House has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Castle House
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.
- Signs of HMO activity in the area
30-day money-back guarantee
Sales history & valuation
£211,000
Modelled from EPC, postcode comparables.
£237,950
Recorded with HM Land Registry.
Sales timeline
10 December 2018Most recent
£237,950
Median price across the last 5 sales in HP11 2FP: £192,000 (2025–2024).
Nearby sales in HP11 2FP
40 Castle House, Desborough Road, High Wycombe, HP11 2FP
Sold Jul 2025
£192,00023 Castle House, Desborough Road, High Wycombe, HP11 2FP
Sold Jun 2025
£195,0001 Castle House, Desborough Road, High Wycombe, HP11 2FP
Sold May 2025
£192,00038 Castle House, Desborough Road, High Wycombe, HP11 2FP
Sold Sept 2024
£175,0008 Castle House, Desborough Road, High Wycombe, HP11 2FP
Sold Jul 2024
£177,500
Everything we know about 21 Castle House, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other Desborough Road homes
Floor Area for 21 Castle House runs comfortably ahead of the street norm.
Price per m²
£4,957
Street avg £4,943
Floor Area
48 m²
Street avg 43 m²
CO₂ Emissions
1.3 t/year
Street avg 1.4 t/year
Years Held
7 years
Street avg 6 years
Similar properties nearby
1 Loakes Court, Rutland Street
HP11 2LE
1 Alexandra Park, Queen Alexandra Road
HP11 2HJ
1 Hayden House, Baker Street
HP11 2RW
1 Ruskin Court, Oakridge Road
HP11 2FG
1 Loakes House, Rutland Street
HP11 2LL
1 River Court, Oakridge Road
HP11 2FN
1 High Street
HP11 2AZ
1 Green Street
HP11 2RA
The neighbourhood at a glance
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Bridge Street — bus stop.
Closest school
0.3 km
High Wycombe Church of England Combined School. 22 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
53.9dB

Night-time· 23:00 – 07:00
43.4dB