Half Moon House, Penn Road, Knotty Green, Beaconsfield, HP9 2TN
EPC B
About Half Moon House
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Half Moon House is a detached house in Knotty Green, Beaconsfield, Beaconsfield (HP9 2TN). It has a recorded floor area of 466 m² (around 5016 sq ft) and construction records dating it to 2003-2006. The latest certificate (January 2026) returns a B (score 81), comfortably above the UK average. When first surveyed in December 2011 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Poor to Good; while window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced England HPI: 8.9% per year against 0% for the wider region. Today's modelled estimate of £2,550,000 is 15% below the 2021 sale of £3,000,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. 5 planning records sit against the property, 0 approved, 0 refused. Sold November 2021 for £3,000,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Half Moon House's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate(1 of 2)
Jan 2026
EPC Rating
A
B
B81
C
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
8.0 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against Half Moon House, Penn Road, Knotty Green, Beaconsfield, HP9 2TN, sourced from the PlanIt planning register.
- Feb 2024Tree WorksTreesGranted
T1 chestnut - crown lift up to 6m, reduce back remaining by up to 1.5-2m up to 10m in height; T2 chestnut - crown lift up to 6m, reduce back remaining by up 1.5-2m up to 10m in height (TPO/1969/049)
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Half Moon House has more than tripled in price since its earliest registered sale in 2006.
Current estimate
See how we calculated this£2,550,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.9% per year over 15 years.
Last sold (2021)
£3,000,000
Growth on file: 8.9% per year over 15 years.
Sales timeline
Launch offer · 33% off
The complete analysis of Half Moon House, Penn Road, Knotty Green, Beaconsfield, HP9 2TN
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Beaconsfield district page.
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
Road noise across the postcode
Modelled day and night-time noise levels around HP9 2TN from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
45.5dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 36 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about Half Moon House, Penn Road, Knotty Green, Beaconsfield, HP9 2TN. Each answer is also embedded as structured data for search engines.
