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Get started31 Ongar Road is a two-bedroom detached house in Addlestone (KT15 1BW). It has a recorded floor area of 168 m² (around 1808 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (February 2026) shows a C (score 74). When first surveyed in December 2014 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good and lighting went from Average to Good. The recommended improvements would push it to B (score 84). This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced England HPI: 6.2% per year against 0% for the wider region. Today's modelled estimate of £451,000 is 12.7% above the 2021 sale price. At 168 m² the property is well over the postcode median (92 m² across 17 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Sold June 2021 for £400,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
The EPC has just been inspected, so the rating reflects current condition.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Extension: Rear of property
Retrospective application for Rear extension together with rooflights to facilitate habitable accommodation in roof space.
31 Ongar Road has more than quadrupled in price since its earliest registered sale in 1996.
£451,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.2% per year over 25 years.
£400,000
Growth on file: 6.2% per year over 25 years.
Floor Area for 31 Ongar Road runs comfortably ahead of the street norm.
Price per m²
£2,381
Street avg £3,979
Floor Area
168 m²
Street avg 94 m²
Habitable Rooms
5 rooms
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
St Paul's Church — bus stop.

Daytime· 07:00 – 23:00
58.4dB

Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water efficiency improved
Wall insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Rear of property
A single storey rear extension with a depth of 7.00 meters beyond the rear wall of the original dwelling house with a maximum height of 4.00 meters and eves height of 2.50 meters.
18 June 2021Most recent
£400,000
+21.2%over 5 years18 February 2016
£330,000
+277.1%over 20 years10 January 1996
£87,500
Median price across the last 5 sales in KT15 1BW: £515,000 (2025–2022).
Street avg 5 rooms
CO₂ Emissions
4.0 t/year
Street avg 4.5 t/year
KT15 1PP
Closest school
0.2 km
Holy Family Catholic Primary School. 22 schools nearby.
Night-time· 23:00 – 07:00
52.4dB
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