9 Dean Street, Marlow, SL7 3AA
About 9 Dean Street
9 Dean Street is a semi-detached house in Marlow (SL7 3AA). It has a recorded floor area of 73 m² (around 786 sq ft) and construction records dating it to 1900-1929. The latest certificate (June 2018) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in October 2012 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Very Good and lighting went from Very Poor to Very Good. The recommended improvements would lift it to C (score 70), a 2-band jump. Main heating runs on electricity.
At 73 m² it's 16.1% smaller than the typical home in the postcode (87 m² median across 22 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and change of use to residential, meaningful when judging how the property has evolved.
Know exactly what you're buying at 9 Dean Street
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
9 Dean Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
- Nov 2012AdvertisingIn report
Display of 1 x externally illuminated fascia sign, 4 x non-illuminated fascia signs and 1 x non-illuminated hanging sign
- Documents
- 6 docs on file
- Reference
- 12/07172/ADV
- May 2012ConditionsIn report
Application for approval of details subject to condition 2 (Materials) of planning approval 11/05468/FUL
- Documents
- 1 doc on file
- Reference
- PI12/00460/ADRC
We flagged 1 thing worth checking at 9 Dean Street
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
9 Dean Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£330,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SL7 3AA: £720,000 (2025–2022).
Nearby sales in SL7 3AA
Windsor House, Apartment 5, Dean Street, Marlow, SL7 3AA
Sold Feb 2025
£790,00011 Dean Street, Marlow, SL7 3AA
Sold Mar 2023
£467,500Windsor House, Apartment 9, Dean Street, Marlow, SL7 3AA
Sold Aug 2022
£625,000Windsor House, Apartment 11, Dean Street, Marlow, SL7 3AA
Sold Mar 2022
£850,000Windsor House, Apartment 4, Dean Street, Marlow, SL7 3AA
Sold Mar 2022
£720,000
Everything we know about 9 Dean Street, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
Versus other Dean Street homes
9 Dean Street is notably below the street on epc rating.
EPC Rating
39 (E)
Street avg 82 (B)
Floor Area
73 m²
Street avg 79 m²
CO₂ Emissions
4.5 t/year
Street avg 1.4 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Similar properties nearby
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
0.1 km
Dean Street Car Park — bus stop.
Closest school
0.2 km
Holy Trinity Church of England (Aided) School. 11 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
51.1dB
Night-time· 23:00 – 07:00
41.4dB