1 Old Marsh Lane, Taplow, Maidenhead, SL6 0DZ
About 1 Old Marsh Lane
1 Old Marsh Lane is a detached house in Taplow, Maidenhead, Maidenhead (SL6 0DZ). It has a recorded floor area of 56 m² (around 603 sq ft) and construction records dating it to 1930-1949. The latest certificate (August 2022) shows an E (score 53), well below the UK norm with real room to improve. The rating has held steady at E across 4 certificates since November 2014. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity.
6 planning records sit against the property, 2 approved, 0 refused, 2 pending. Past consents include a loft conversion and an extension, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. A recent sale: £1,350,000 in December 2024. At 56 m² it sits well below the postcode median (122 m² across 6 EPCs), making it one of the more compact homes locally. On a £-per-square-foot basis, the last sale (£2,240/sq ft) was about 455.2% above the typical sold price in the postcode.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
More low energy lighting installed
Hot water efficiency improved
Low energy lighting percentage decreased
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Windows upgraded, improving insulation
Cavity wall insulation installed
Floor insulation added or improved
More low energy lighting installed
Solar PV panels (40 kWp) installed
Planning history
An application for a loft conversion is currently awaiting a decision.
- Mar 2026Loft ConversionFullIn report
Extension: Part single, part two storey · Rear of property
Part-single/part-two storey rear extension and loft conversion incorporating rear dormer.
- Agent
- Landmark Architectural Services Ltd
Extension- Documents
- 4 docs on file
- Reference
- PL/26/00842/FA
- Oct 2025ExtensionIn report
Extension: Single storey · Rear of property
The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 8m for which the maximum height would be 2.60m and for which the height of the eaves would be maximum 2.40m
- Agent
- Landmark Architectural Services Ltd
- Documents
- 3 docs on file
- Reference
- PL/25/4257/PNE
We flagged 2 things worth checking at 1 Old Marsh Lane
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
- Environmental risk flagged
30-day money-back guarantee
Sales history & valuation
1 Old Marsh Lane valuation sits well clear of the typical sold price in this postcode.
£1,351,000
Modelled from EPC, postcode comparables.
£1,350,000
Recorded with HM Land Registry.
Sales timeline
18 December 2024Most recent
£1,350,000
Median price across the last 4 sales in SL6 0DZ: £755,000 (2016–1997).
Versus other Old Marsh Lane homes
CO₂ Emissions for 1 Old Marsh Lane runs comfortably ahead of the street norm.
EPC Rating
53 (E)
Street avg 52 (E)
Floor Area
56 m²
Street avg 112 m²
CO₂ Emissions
1.7 t/year
Street avg 6.8 t/year
Habitable Rooms
2 rooms
Street avg 6 rooms
Similar properties nearby
1 Amerden Lakes, Amerden Lane, Taplow
SL6 0EL
1 Abbey Gate, Bath Road, Taplow
SL6 0NZ
1 Clare Road, Taplow
SL6 0LH
1 Evelyn Gardens, Taplow
SL6 0FG
1 Alvista Avenue, Taplow
SL6 0PG
1 Averil Court, Taplow
SL6 0LQ
1 Conway Road, Taplow
SL6 0LB
1 Cliveden Gages, Taplow
SL6 0GA
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Old Marsh Lane — bus stop.
Closest school
0.3 km
Dorney School. 10 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
58.5dB

Night-time· 23:00 – 07:00
53.3dB







