Windsor House, Apartment 4, Dean Street, Marlow, SL7 3AA
About Windsor House
Windsor House is a two-bedroom detached house in Marlow (SL7 3AA). It has a recorded floor area of 88 m² (around 947 sq ft). The latest certificate (May 2018) returns a high B (score 86), putting the home a stone's throw from an A rating. At 88 m² this is the 10th smallest of 16 units on EPC record in Windsor House, where floor areas span 53–96 m². The building's EPC ratings span C to B, with this unit at the top. The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal.
Across 2019–2022, sale prices on this property compounded at 1.2% per year. On a £-per-square-foot basis, the last sale (£760/sq ft) was about 18.1% above the typical sold price in the postcode. Last sale on file: £720,000 in March 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Windsor House
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
What this property has
Inside
- Bedrooms2
- Bathrooms2
- Open-plan layoutYes
- EnsuiteYes
Outside
- Private gardenYes
- ParkingUnderground
Building
- Heating systemElectric
- Underfloor heatingYes
- LiftYes
- RefurbishedYes
Energy performance
Windsor House's carbon output is low for the local stock.
EPC Rating
Planning history
Windsor House has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at Windsor House
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£759,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.2% per year over 3 years.
£720,000
Growth on file: 1.2% per year over 3 years.
Sales timeline
16 March 2022Most recent
£720,000
+3.6%over 2 years11 April 2019
£695,000
Median price across the last 5 sales in SL7 3AA: £635,000 (2025–2020).
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 3, Dean Street, Marlow, SL7 3AA
Sold Jul 2020
£635,000
Everything we know about Windsor House, 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 for Windsor House runs comfortably ahead of the street norm.
Price per m²
£8,182
Street avg £7,058
Floor Area
88 m²
Street avg 78 m²
CO₂ Emissions
1.1 t/year
Street avg 1.5 t/year
Years Held
4 years
Street avg 6 years
Similar properties nearby
Bank Apartments, Flat 3, Dean Street
SL7 3DX
Bank Apartments, Flat 4, Dean Street
SL7 3DX
Bank Apartments, Flat 2, Dean Street
SL7 3DX
Bank Apartments, Flat 1, Dean Street
SL7 3DX
Bank Apartments, Flat 5, Dean Street
SL7 3DX
Bank Apartments, Flat 6, Dean Street
SL7 3DX
Bank Apartments, Flat 10, Dean Street
SL7 3DX
Bank Apartments, Flat 8, Dean Street
SL7 3DX
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