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Get started14 Carfax Avenue is a one-bedroom detached house in Tongham, Farnham, Farnham (GU10 1BH). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (July 2021) shows an F (score 33), near the bottom of the EPC scale. Earlier certificates rated it D (June 2009); the latest reading is 2 bands lower. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 73), a 3-band jump. Main heating runs on electricity. At 49 m² this is the 2nd smallest of 23 units on EPC record in the building, where floor areas span 47–151 m². The building's EPC ratings span F to B, with this unit at the bottom. On EPC score it ranks last in the building (33 versus a best of 81).
Untraded for 17 years, with the last transfer in October 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Sale prices here have outpaced England HPI: 9.2% per year against 0% for the wider region. Today's modelled estimate of £184,000 sits 60% above the 2009 sale of £115,000. On a £-per-square-foot basis, the last sale (£218/sq ft) was about 17.9% below the postcode norm. At 49 m² it sits well below the postcode median (98 m² across 22 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
14 Carfax Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
Sale price has grown by over 3x since 1997.
£184,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.2% per year over 13 years.
£115,000
Growth on file: 9.2% per year over 13 years.
EPC Rating for 14 Carfax Avenue lags the street by a wide margin.
EPC Rating
33 (F)
Street avg 53 (E)
Floor Area
49 m²
Street avg 50 m²
CO₂ Emissions
4.2 t/year
Street avg 1.2 t/year
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Elm Lane — bus stop.

Daytime· 07:00 – 23:00
55.0dB

Changes detected from historical EPC data
Heating system changed
Hot water system changed
More low energy lighting installed
Heating controls changed
Low energy lighting percentage decreased
Are we missing something? Tell us about home improvements to help adjust your valuation.
19 October 2009Most recent
£115,000
+202.6%over 12 years21 March 1997
£38,000
Median price across the last 5 sales in GU10 1BH: £490,000 (2025–2022).
Habitable Rooms
3 rooms
Street avg 2 rooms
GU10 1PF
Closest school
0.2 km
Ash Manor School. 16 schools nearby.
Night-time· 23:00 – 07:00
46.0dB
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