21 Avon Square, Hemel Hempstead, HP2 6DZ
About 21 Avon Square
21 Avon Square is a three-bedroom mid-terrace house in Hemel Hempstead (HP2 6DZ). It has a recorded floor area of 93 m² (around 1004 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (September 2009) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 74). The latest certificate is from September 2009, so improvements made since then won't be reflected.
Across 1997–2016, sale prices on this property compounded at 7.6% per year. Today's modelled estimate of £346,000 is 30.6% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£264/sq ft) was about 32.8% above the typical sold price in the postcode. On the market in February 2016 and unlisted since — roughly 10 years.
What this property has
Inside
- Bedrooms3
Energy performance
21 Avon Square's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 29 Sept 2019
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
21 Avon Square has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Avon Square has more than tripled in price since its earliest registered sale in 1997.
£346,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 18 years.
£265,000
Growth on file: 7.6% per year over 18 years.
Sales timeline
11 February 2016Most recent
£265,000
+96.3%over 12 years27 February 2003
£135,000
+95.7%over 5 years3 September 1997
£69,000
Median price across the last 5 sales in HP2 6DZ: £345,000 (2025–2022).
Nearby sales in HP2 6DZ
9a, Avon Square, Hemel Hempstead, HP2 6DZ
Sold Sept 2025
£160,0007 Avon Square, Hemel Hempstead, HP2 6DZ
Sold Feb 2025
£362,00035 Avon Square, Hemel Hempstead, HP2 6DZ
Sold Apr 2024
£338,00012 Avon Square, Hemel Hempstead, HP2 6DZ
Sold Oct 2023
£345,00023 Avon Square, Hemel Hempstead, HP2 6DZ
Sold Dec 2022
£352,000
Versus other Avon Square homes
On floor area, 21 Avon Square stands well clear of the street.
Price per m²
£2,840
Street avg £2,747
Floor Area
93 m²
Street avg 91 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.1 t/year
Street avg 3.8 t/year
Similar properties nearby
1 Avon Square
HP2 6DZ
1 Essex Mead
HP2 6LF
1 Argyll Road
HP2 6NE
1 Chequers End, Gaddesden Row
HP2 6HH
1 Hunting Gate
HP2 6NX
1 Bradden Cottages, Bradden Lane, Gaddesden Row
HP2 6HZ
1 Basildon Square
HP2 6AS
1 Hoo Cottages, Ledgemore Lane, Great Gaddesden
HP2 6HF
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Avon Square — bus stop.
Closest school
0.3 km
Maple Grove Primary School. 18 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
49.7dB

Night-time· 23:00 – 07:00
39.5dB







