73a, Park Street, Aylesbury, HP20 1DU
About 73a
73a is a two-bedroom end-of-terrace house in Aylesbury (HP20 1DU). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (March 2019) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since January 2009. Between certificates, lighting went from Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 74). At 73 m² this is the 9th smallest of 27 units on EPC record in the building, where floor areas span 34–108 m². The building's EPC ratings span E to C across 27 units on file.
Today's modelled estimate of £429,000 sits 113.4% above the 2025 sale of £201,000. On a £-per-square-foot basis, the last sale (£256/sq ft) was about 15.7% above the typical sold price in the postcode. Most recent transfer was August 2025 at £201,000 — fresh data. One historical planning record sits against the property in 2016.
What this property has
Inside
- Bedrooms2
Building
- Central heatingYes
- RefurbishedYes
Everything you need to know about 73a
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Heating controls upgraded for better temperature management
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
1 application on record at 73a, Park Street, Aylesbury, HP20 1DU
- Feb 2016TelecomsOutcome in report
Notice of intention to install x1 electronic communication apparatus pursuat to the Town and Country Planning (General Permitted Development)(England) Order 2015 and the electronic communications code (Conditions and Regulations) 2003 (As Amended) Location: PCP020 Stocklake s/o 73A Park Street Aylesbury HP20 1DU 482529 214033
- Reference
- 16/00380/INTN
Unlock 73a, Park Street, Aylesbury, HP20 1DU's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 7 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
73a changed hands twice within eighteen months — unusual for the area.
£429,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.4% per year over 28 years.
£201,000
Growth on file: 0.4% per year over 28 years.
Sales timeline
21 August 2025Most recent
£201,000
-4.3%26 June 2025
£210,000
-40.0%over 17 years29 May 2008
£350,000
+48.9%over 2 years15 November 2005
£235,000
+30.6%over 7 years5 January 1998
£180,000
Median price across the last 5 sales in HP20 1DU: £285,000 (2025–2023).
Nearby sales in HP20 1DU
Versus other Park Street homes
Price per m² for 73a lags the street by a wide margin.
Price per m²
£2,753
Street avg £3,274
Floor Area
73 m²
Street avg 38 m²
Habitable Rooms
4 rooms
Street avg 2 rooms
CO₂ Emissions
4.0 t/year
Street avg 1.8 t/year
Everything you need to know about 73a
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Pembroke Road — bus stop.
Closest school
0.5 km
Aylesbury Grammar School. 29 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
54.0dB

Night-time· 23:00 – 07:00
45.2dB






