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21 Butterfly Crescent, Nash Mills Wharf, Hemel Hempstead, HP3 9GS

EPC B

Estimated value

£446,000

  • Since the 2015 sale (£340,000)+31%
  • Against HP3 9GS's recent median (£512,500)-13%

Newest record on this page: March 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
End terrace
Bedrooms
3
Bathrooms
2
Floor area
39 m²
418 sq ft
Energy rating
B
Score 81
Council tax
Band D
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£446,000

  • Against its 2015 sale (£340,000)+31%
  • Against HP3 9GS's recent median (£512,500)-13%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Butterfly Crescent is modelled from its 39 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP3 9GS. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    39 m² from the EPC lodged in September 2011

  • Sales of this home

    2 sales recorded, the latest in 2015

  • Recent sales in HP3 9GS

    5 sales, median £512,500 (2025–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About 21 Butterfly Crescent

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

21 Butterfly Crescent is a three-bedroom end-of-terrace house in Nash Mills Wharf, Hemel Hempstead, Hemel Hempstead (HP3 9GS). It has a recorded floor area of 39 m² (around 418 sq ft) and council tax band D. The latest certificate (September 2011) returns a B (score 81), comfortably above the UK average. The latest certificate is from September 2011, so improvements made since then won't be reflected.

At 39 m² it sits well below the postcode median (82 m² across 33 EPCs), making it one of the more compact homes locally. Across 2012–2015, sale prices on this property compounded at 8% per year. Today's modelled estimate of £446,000 is 31.2% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£814/sq ft) was about 86.1% above the typical sold price in the postcode. Last changed hands 11 years ago, in May 2015.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3
  • Bathrooms2
Before you decide

Everything you need to know about 21 Butterfly Crescent

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

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

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

21 Butterfly Crescent's carbon output is low for the local stock.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 14 Sept 2021

Current Certificate
Sept 2011

EPC Rating

A
B
B81
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
1.5 t/year
Occupancy
—

Certificate validity

Expired on 14 September 2021

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 21 Butterfly Crescent, Nash Mills Wharf, Hemel Hempstead, HP3 9GS, sourced from the PlanIt planning register.

21 Butterfly Crescent has no planning applications on record.

2

But the area is active

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

On the street

Versus other Butterfly Crescent homes

Four headline reads against 32 similar houses on this street, drawn from the latest EPC and Land Registry data.

On co₂ emissions, 21 Butterfly Crescent stands well clear of the street.

Price per m²

£8,765

Street avg £5,917

Strongly above

Floor Area

39 m²

Street avg 85 m²

Strongly below

CO₂ Emissions

1.5 t/year

Street avg 2.2 t/year

Strongly above

Years Held

11 years

Street avg 10 years

On par
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.

Rail-style transport is unusually close for this postcode.

Crime

211/mo

Falling 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. 17 schools nearby.

Nearest schools

  • Nash Mills Church of England Primary SchoolPrimary406m
  • Belswains Primary SchoolPrimary1.0km
  • Chambersbury Primary SchoolPrimary1.2km
  • Kings Langley Primary SchoolPrimary1.4km

Nearest stops

  • Mill CloseBus stop210m
  • Red Lion LaneBus stop216m
  • Rucklers LaneBus stop277m
  • Rucklers LaneBus stop364m

Most reported crime locally

  • Violence & Sexual Offences937 reports34%
  • Anti-social Behaviour630 reports23%
  • Other Theft265 reports10%
  • Criminal Damage & Arson174 reports6%

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 9GS from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for HP3 9GS

Daytime· 07:00 – 23:00

49.5dB

Low
Night-time road noise heatmap for HP3 9GS

Night-time· 23:00 – 07:00

39.8dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
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End-Terrace HouseEPC B

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
How the estimate is made
The estimate for 21 Butterfly Crescent is modelled from its 39 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP3 9GS. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 21 Butterfly Crescent. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 Butterfly Crescent was lodged in September 2011 at band B and expired in September 2021, so a new one is needed to sell or let. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Butterfly Crescent. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 13 months, which places each incident at an approximate point. The 17 schools and 30 stops listed are measured in a straight line from HP3 9GS, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
21 Butterfly Crescent is in council tax band D. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Butterfly Crescent, Nash Mills Wharf, Hemel Hempstead, HP3 9GS. Each answer is also embedded as structured data for search engines.

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