21 Holywell Close, Poole, BH17 9BG
About 21 Holywell Close
21 Holywell Close is a four-bedroom detached house in Poole (BH17 9BG). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (March 2026) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in September 2013 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Good and lighting went from Very Poor to Average; while wall efficiency dropped from Average to Poor and roof efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 84), a 2-band jump. This certificate was lodged in the last six months, so the rating reflects current condition.
Today's modelled estimate of £519,000 sits 62.2% above the 2014 sale of £320,000. On a £-per-square-foot basis, the last sale (£220/sq ft) was about 16.7% below the postcode norm. Last changed hands 12 years ago, in February 2014.
What this property has
Inside
- Bedrooms4
Everything you need to know about 21 Holywell Close
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 25 March 2036
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
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Level 2 HomeBuyer Report
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Planning history
21 Holywell Close has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
21 Holywell Close valuation sits well clear of the typical sold price in this postcode.
£519,000
Modelled from EPC, postcode comparables.
£320,000
Recorded with HM Land Registry.
Sales timeline
21 February 2014Most recent
£320,000
Median price across the last 5 sales in BH17 9BG: £455,000 (2026–2023).
Versus other Holywell Close homes
21 Holywell Close is notably below the street on price per m².
Price per m²
£2,370
Street avg £3,557
Floor Area
135 m²
Street avg 124 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.7 t/year
Street avg 4.9 t/year
Everything you need to know about 21 Holywell Close
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
101/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Steeple Close — bus stop.
Closest school
0.4 km
Poole Grammar School. 14 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
48.5dB
Night-time· 23:00 – 07:00
39.9dB