21 Institute Road, Marlow, SL7 1BJ
About 21 Institute Road
21 Institute Road is a semi-detached house in Marlow (SL7 1BJ). It has a recorded floor area of 289 m² (around 3111 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (September 2023) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 72).
Across 2005–2024, sale prices on this property compounded at 5.3% per year. Today's modelled estimate of £2,098,000 is 19.3% below the 2024 sale of £2,600,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. At 289 m² the property is well over the postcode median (100 m² across 6 EPCs), placing it in the larger end of the local stock. 9 planning records sit against the property, 5 approved, 1 refused. Past consents include an extension, an annexe and a porch, meaningful when judging how the property has evolved. Most recent transfer: May 2024 at £2,600,000.
Know exactly what you're buying at 21 Institute Road
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
21 Institute Road's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Multiple extension applications run across more than a decade of planning history at 21 Institute Road.
- Apr 2024AnnexFullIn report
Extension: Single storey
Householder application for construction of single storey extension to connect and enlarge existing residential annex
Extension- Documents
- 9 docs on file
- Reference
- 24/05189/FUL
- Jan 2023Tree WorksTreesIn report
Reduce crown to a height of 7 metres and a spread of 5 metres x 1 Beech Tree (T1)
- Documents
- 5 docs on file
- Reference
- 22/08223/CTREE
What's in 21 Institute Road, Marlow, SL7 1BJ's planning history?
7 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Latest sale on 21 Institute Road was the highest on Land Registry record across the postcode.
£2,098,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.3% per year over 19 years.
£2,600,000
Growth on file: 5.3% per year over 19 years.
Sales timeline
2 May 2024Most recent
£2,600,000
+166.7%over 18 years13 June 2005
£975,000
Median price across the last 5 sales in SL7 1BJ: £1,150,000 (2024–2017).
Nearby sales in SL7 1BJ
Everything we know about 21 Institute Road, 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 Institute Road homes
On epc rating, 21 Institute Road stands well clear of the street.
Price per m²
£8,997
Street avg £8,775
Floor Area
289 m²
Street avg 110 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
11.0 t/year
Street avg 7.1 t/year
Similar properties nearby
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SL7 1EF
1 Davis Close
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1 Claremont Gardens
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1 Claremont Road
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1 Dedmere Rise
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1 Beaufort Close
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1 Carlton Place
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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
0.2 km
Liston Road — bus stop.
Closest school
0.5 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
50.9dB

Night-time· 23:00 – 07:00
41.1dB