18 Portlock Road, Maidenhead, SL6 6DZ
About 18 Portlock Road
18 Portlock Road is a two-bedroom end-of-terrace house in Maidenhead (SL6 6DZ). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (March 2013) shows an F (score 25), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 75), a 3-band jump. The latest certificate is from March 2013, so improvements made since then won't be reflected. Records show the property has been extended at some point in its history.
At 73 m² it's 15.6% smaller than the typical home in the postcode (87 m² median across 38 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1995–2021, sale prices on this property compounded at 6.3% per year. On a £-per-square-foot basis, the last sale (£617/sq ft) was about 108.9% above the typical sold price in the postcode. Last sale on file: £485,000 in February 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- StudyYes
Outside
- Private gardenRear
- ParkingOff street
Building
- Previously extendedYes
- RefurbishedYes
Energy performance
18 Portlock Road sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 11 Mar 2023
EPC Rating
Planning history
18 Portlock Road has an approved rear extension on the planning record.
- Mar 2017ExtensionFullIn report
Extension: Part single, part two storey
Part single/ part two storey rear, first floor side extensions and roof conversion into habitable accommodation following part demolition of existing rear.
- Documents
- 24 docs on file
- Reference
- 16/03987/FULL
- Dec 2013ExtensionFullIn report
Extension: Rear of property
Single storey rear extension following demolition of existing rear extension
- Documents
- 12 docs on file
- Reference
- 13/03122/FULL
We flagged 1 thing worth checking at 18 Portlock Road
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
Price for 18 Portlock Road has grown more than fourfold since the 1995 starting point.
£529,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 26 years.
£485,000
Growth on file: 6.3% per year over 26 years.
Sales timeline
26 February 2021Most recent
£485,000
+70.2%over 7 years8 August 2013
£285,000
+34.4%over 10 years11 September 2002
£212,000
+118.6%over 7 years5 January 1995
£97,000
Median price across the last 5 sales in SL6 6DZ: £600,000 (2025–2024).
Nearby sales in SL6 6DZ
Versus other Portlock Road homes
On epc rating, 18 Portlock Road runs well behind the street norm.
Price per m²
£6,644
Street avg £5,048
Floor Area
73 m²
Street avg 94 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
7.9 t/year
Street avg 4.8 t/year
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Clara Court — bus stop.
Closest school
0.4 km
All Saints Church of England Junior School. 21 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
51.5dB

Night-time· 23:00 – 07:00
41.0dB







