27b, High Street, Marlow, SL7 1AU
About 27b
27b is an end-of-terrace house in Marlow (SL7 1AU). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (December 2020) shows an F (score 26), near the bottom of the EPC scale. When first surveyed in October 2009 the rating was G, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to D (score 65), a 2-band jump. Main heating runs on electricity. At 67 m² this is the 4th smallest of 7 units on EPC record in the building, where floor areas span 48–87 m². The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (26 versus a best of 71).
Today's modelled estimate of £316,000 is 95.3% below the 2016 sale of £6,775,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last sold in January 2016, so it's been off the market for around 10 years.
Know exactly what you're buying at 27b
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
27b sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Planning history
27b has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
£316,000
Modelled from EPC, postcode comparables.
£6,775,000
Recorded with HM Land Registry.
Sales timeline
19 January 2016Most recent
£6,775,000
Median price across the last 3 sales in SL7 1AU: £1,150,000 (2022–2017).
Everything we know about 27b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other High Street homes
EPC Rating for 27b lags the street by a wide margin.
EPC Rating
26 (F)
Street avg 58 (D)
Floor Area
67 m²
Street avg 64 m²
CO₂ Emissions
6.7 t/year
Street avg 3.9 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
High Street — bus stop.
Closest school
0.4 km
Sir William Borlase's Grammar 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
50.6dB
Night-time· 23:00 – 07:00
40.8dB