What did 23 Blackwell House, The Embankment, HP3 9FX sell for?

23 Blackwell House, The Embankment, HP3 9FX last sold for £320,000 in May 2020, around 6 years ago. Before that, it sold for £290,000 in November 2015, so prices have been rising over 5 years on record. Source: HM Land Registry.

How has the value of 23 Blackwell House, The Embankment, HP3 9FX changed over time?

Across 2 sales between November 2015 and May 2020, 23 Blackwell House, The Embankment, HP3 9FX rose from £290,000 to £320,000, a change of £30,000. That works out to roughly +2.2% per year compounded over 5 years. Source: HM Land Registry.

What is the EPC rating for 23 Blackwell House, The Embankment, HP3 9FX?

The current EPC rating for 23 Blackwell House, The Embankment, HP3 9FX is C with a score of 79 out of 100, lodged in October 2015. Source: EPC Register.

How big is 23 Blackwell House, The Embankment, HP3 9FX?

23 Blackwell House, The Embankment, HP3 9FX has a recorded floor area of 60 m² (646 sq ft). That makes it about 12% smaller than the median EPC-recorded property in HP3 9FX. Source: EPC Register.

What heating system does 23 Blackwell House, The Embankment, HP3 9FX use?

The latest EPC at 23 Blackwell House, The Embankment, HP3 9FX records electricity: electricity, unspecified tariff as the main heating fuel. Source: EPC Register.

What is the council tax band for 23 Blackwell House, The Embankment, HP3 9FX?

23 Blackwell House, The Embankment, HP3 9FX is in council tax band D.

Which area is 23 Blackwell House, The Embankment, HP3 9FX in?

23 Blackwell House, The Embankment, HP3 9FX sits in Nash Mills Wharf, Hemel Hempstead, Hemel Hempstead. It falls within the HP3 postcode district in Hertfordshire.

How safe is the area around 23 Blackwell House, The Embankment, HP3 9FX?

Police records around 23 Blackwell House, The Embankment, HP3 9FX show an average of 3 reported crimes per month over the last 7 months. Violent crime makes up roughly 35% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

What schools are near 23 Blackwell House, The Embankment, HP3 9FX?

The closest primary school to 23 Blackwell House, The Embankment, HP3 9FX is Nash Mills Church of England Primary School (355m), one of 14 primaries within walking distance. The closest secondary is Longdean School (1.6km), with 4 secondaries in the surrounding area.

How well connected is 23 Blackwell House, The Embankment, HP3 9FX?

The closest bus stop to 23 Blackwell House, The Embankment, HP3 9FX is Mill Close, 185m away. The nearest rail option is Apsley Rail Station, 800m away.

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23 Blackwell House, The Embankment, Nash Mills Wharf, Hemel Hempstead, HP3 9FX

Floor area

60 m²

646 sq ft

Energy rating

Score 79

Council tax

Band D

Overview

About 23 Blackwell House

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

23 Blackwell House is a property in Nash Mills Wharf, Hemel Hempstead, Hemel Hempstead (HP3 9FX). It has a recorded floor area of 60 m² (around 646 sq ft) and council tax band D. At 60 m² this is the 8th smallest of 36 units on EPC record in the building, where floor areas span 46–83 m². The building's EPC ratings span D to B across 36 units on file. The latest certificate (October 2015) shows a C (score 79), near the top of the C band. Main heating runs on electricity: electricity, unspecified tariff. The latest certificate is from October 2015, so improvements made since then won't be reflected.

Across 2015–2020, sale prices on this property compounded at 2.2% per year. On a £-per-square-foot basis, the last sale (£495/sq ft) was about 15.2% above the typical sold price in the postcode. Last sale on file: £320,000 in May 2020.

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Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

23 Blackwell House's carbon output is low for the local stock.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 26 Oct 2025

EPC Rating

C79

Main Heating

Electric

Main Fuel

Electric

Hot Water

Very Poor

Windows

Very Good

CO2 Emissions

1.4 t/year

Occupancy

—

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Planning

Planning history

Applications and permits filed against 23 Blackwell House, The Embankment, Nash Mills Wharf, Hemel Hempstead, HP3 9FX, sourced from the PlanIt planning register.

23 Blackwell House has no planning applications on record.

But the area is active

2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Current estimate

£289,000

Modelled from EPC, postcode comparables and a sale-price growth of 2.2% per year over 5 years.

See how we calculated this

Last sold (2020)

£320,000

Growth on file: 2.2% per year over 5 years.

Sales timeline

27 May 2020Most recent
£320,000
+10.3%over 4 years
13 November 2015
£290,000

Median price across the last 5 sales in HP3 9FX: £280,000 (2025–2024).

Nearby sales in HP3 9FX

On the street

Versus other The Embankment homes

Four headline reads against 35 similar flats on this street, drawn from the latest EPC and Land Registry data.

On price per m², 23 Blackwell House stands well clear of the street.

Price per m²

£5,333

Street avg £4,682

Strongly above

Floor Area

60 m²

Street avg 65 m²

Below

CO₂ Emissions

1.4 t/year

Street avg 1.6 t/year

Above

Years Held

6 years

Street avg 6 years

Above

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Everything you need to know about 23 Blackwell House

The true value, the hidden risks and the full sale history, in one report.

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Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.

£290k

1 Athelstan Mews, Athelstan Road

HP3 9QE

£297k

1 Canal View House, Lawn Lane

HP3 9HS

£270k

1 Apsley Grange

HP3 9SY

2 bed

£316k

1 Blackwell House, The Embankment, Nash Mills Wharf

HP3 9FX

2 bed2 bath

£247k

1 Barn Close

HP3 9PJ

2 bed1 bath

£347k

1 Butterfly Crescent, Nash Mills Wharf

HP3 9GS

1 bed1 bath

£227k

1 Albion Court, Ebberns Road

HP3 9DE

1 bed1 bath

£226k

1 Bond Court, Stationers Place

HP3 9YP

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Hemel Hempstead district page.

Full Hemel Hempstead report

Rail-style transport is unusually close for this postcode.

Crime

3/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Mill Close — bus stop.

Closest school

0.4 km

Nash Mills Church of England 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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around HP3 9FX from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

49.8dB

Low

Night-time road noise heatmap for HP3 9FX

Night-time· 23:00 – 07:00

40.1dB

Low

55 dB

60 dB

65 dB

70 dB

75 dB

80 dB

Defra Road Noise Strategic Mapping, Round 4

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 23 Blackwell House, The Embankment, Nash Mills Wharf, Hemel Hempstead, HP3 9FX. Each answer is also embedded as structured data for search engines.