23 Barnhill Gardens, Marlow, SL7 3HB
About 23 Barnhill Gardens
23 Barnhill Gardens is a three-bedroom semi-detached house in Marlow (SL7 3HB). It has a recorded floor area of 73 m² (around 783 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (May 2010) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 61). The latest certificate is from May 2010, so improvements made since then won't be reflected. Other recorded features include a loft.
Held since August 2010 — that's 16 years off the open market, well above the local norm. Across 2001–2010, sale prices on this property compounded at 5.3% per year. Today's modelled estimate of £509,000 sits 51.9% above the 2010 sale of £335,000. On a £-per-square-foot basis, the last sale (£428/sq ft) was about 24.6% above the typical sold price in the postcode. At 73 m² it sits well below the postcode median (108 m² across 22 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 23 Barnhill Gardens
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
- Bedrooms3
- Dining roomYes
- LoftYes
Outside
- Private gardenRear
- GarageYes
Building
- Heating systemGas
Energy performance
23 Barnhill Gardens's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 23 May 2020
EPC Rating
Planning history
- Jun 2015ExtensionFullIn report
Extension: Rear of property
Householder application for construction of two storey side extension to replace existing garage with canopy to front, single storey rear extension and insertion of window to rear at first floor. Insertion of 2 x rooflights to front roofslope and 1 x rooflight to rear roofslope with construction of boxed dormer to rear in connection with conversion of loft to provide additional habitable living accommodation. External alterations to rear including retaining wall.
- Documents
- 10 docs on file
- Reference
- 15/06211/FUL
- Jun 2012Garage ConversionFullIn report
Extension: Single storey · Rear of property
Householder application for construction of single storey rear extension and associated excavation works to rear and insertion of window to front and external alterations in connection with garage conversion
Extension- Documents
- 6 docs on file
- Reference
- 12/05955/FUL
We flagged 1 thing worth checking at 23 Barnhill Gardens
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
23 Barnhill Gardens saw 3 transfers in just over a decade — high turnover for the postcode.
£509,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.3% per year over 9 years.
£335,000
Growth on file: 5.3% per year over 9 years.
Sales timeline
18 August 2010Most recent
£335,000
+9.8%over 4 years4 April 2006
£305,000
+45.2%over 4 years26 July 2001
£210,000
Median price across the last 5 sales in SL7 3HB: £693,000 (2025–2021).
Nearby sales in SL7 3HB
Everything we know about 23 Barnhill Gardens, 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 Barnhill Gardens homes
23 Barnhill Gardens is notably below the street on floor area.
Price per m²
£4,606
Street avg £4,744
Floor Area
73 m²
Street avg 108 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.8 t/year
Street avg 5.3 t/year
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Seymour Park Road — bus stop.
Closest school
0.2 km
Marlow Church of England Infant 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
48.4dB

Night-time· 23:00 – 07:00
39.4dB