9a, Dean Street, Marlow, SL7 3AA
About 9a
9a is a semi-detached house in Marlow (SL7 3AA). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (July 2018) returns a B (score 84), comfortably above the UK average. When first surveyed in October 2012 the rating was F, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Very Poor to Good and window efficiency went from Good to Very Good. At 88 m² this is the 13th smallest of 23 units on EPC record in the building, where floor areas span 53–96 m². The building's EPC ratings span E to B, with this unit at the top.
Know exactly what you're buying at 9a
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
9a's carbon output is low for the local stock.
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
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
High performance glazing installed
Cavity wall insulation installed
Planning history
9a has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 9a
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
9a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£593,000
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 9a, 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
EPC Rating
84 (B)
Street avg 80 (C)
Floor Area
88 m²
Street avg 78 m²
CO₂ Emissions
1.1 t/year
Street avg 1.5 t/year
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