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Get started23 Castle Avenue is a two-bedroom semi-detached house in Highcliffe, Christchurch, Christchurch (BH23 4LL). It has a recorded floor area of 95 m² (around 1023 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (June 2024) shows a C (score 72). The rating has held steady at C across 2 certificates since February 2014. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). Records show the property has been extended at some point in its history.
Sale prices here have outpaced England HPI: 5.6% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£445/sq ft) was about 92.7% above the typical sold price in the postcode. One planning record on file: an extension approved in 2025. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: October 2024 at £455,000.
23 Castle Avenue has an approved single-storey side and rear extension on the planning record.
Extension: Single storey · Side and rear of property
Single-storey rear and side extension.
Sale price has grown by over 3x since 2001.
£460,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 23 years.
£455,000
Growth on file: 5.6% per year over 23 years.
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Detailed AI analysis
On years held, 23 Castle Avenue runs well behind the street norm.
Price per m²
£4,789
Street avg £3,272
Floor Area
95 m²
Street avg 98 m²
Habitable Rooms
4 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
48.9dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
4 October 2024Most recent
£455,000
+42.2%over 10 years25 July 2014
£320,000
+151.0%over 13 years20 April 2001
£127,500
Median price across the last 5 sales in BH23 4LL: £400,000 (2024–2017).
27a Castle Avenue Highcliffe Christchurch
Sold Dec 2024
24 Castle Avenue Highcliffe Christchurch
Sold Nov 2021
8 Castle Avenue Highcliffe Christchurch
Sold Aug 2019
27 Castle Avenue Highcliffe Christchurch
Sold Oct 2017
25 Castle Avenue Highcliffe Christchurch
Sold Jun 2017
An AI-written breakdown of everything that matters
Detailed EPC data
Full energy ratings, history and recommendations
Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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Street avg 5 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.6 t/year
BH23 4QZ
Hinton Wood Avenue — bus stop.
Closest school
0.7 km
Highcliffe St Mark Primary School. 4 schools nearby.
Night-time· 23:00 – 07:00
39.4dB