9 Mill Close, Piccotts End, Hemel Hempstead, HP1 3AX
About 9 Mill Close
9 Mill Close is a three-bedroom detached house in Piccotts End, Hemel Hempstead, Hemel Hempstead (HP1 3AX). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (July 2019) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 73), a 2-band jump. Our model identifies extension potential, subject to local planning policy.
At 114 m² it sits well below the postcode median (166 m² across 4 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£444/sq ft) was about 130.1% above the typical sold price in the postcode. Last sale on file: £545,000 in August 2020.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Outside
- Private gardenYes
- GarageYes
Building
- Heating systemGas
- Extension potentialPossible
Energy performance
9 Mill Close's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
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Planning history
9 Mill Close has an approved single-storey rear extension on the planning record.
3 applications on record at 9 Mill Close, Piccotts End, Hemel Hempstead, HP1 3AX
- Mar 2020ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
single storey rear extension measuring 5m deep with a maximum eaves height of 3m and a maximum overall height of 3m
- Documents
- 8 docs on file
- Reference
- 20/00113/HPA
- More recent applications — locked
- ExtensionJan 2021Decision
- ExtensionOct 2020Decision
Unlock 9 Mill Close, Piccotts End, Hemel Hempstead, HP1 3AX's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 1 notable nearby
- The 22 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£592,000
Modelled from EPC, postcode comparables.
£545,000
Recorded with HM Land Registry.
Sales timeline
27 August 2020Most recent
£545,000
Median price across the last 5 sales in HP1 3AX: £545,000 (2024–2006).
Nearby sales in HP1 3AX
Versus other Mill Close homes
On epc rating, 9 Mill Close runs well behind the street norm.
Price per m²
£4,781
Street avg £4,008
Floor Area
114 m²
Street avg 163 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
6.6 t/year
Street avg 6.6 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
16/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Piccotts End Farm — bus stop.
Closest school
1.2 km
Galley Hill Primary School and Nursery. 24 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
46.8dB

Night-time· 23:00 – 07:00
39.2dB







