What kind of home is 18 Harpenden Lane, AL3 7PB?

18 Harpenden Lane, AL3 7PB is a 4-bedroom semi-detached house, which has been extended.

What was the last sold price for 18 Harpenden Lane, AL3 7PB?

18 Harpenden Lane, AL3 7PB last sold for £675,000 in February 2025, around 1 years ago. Land Registry has 6 sales on record going back to £108,000 in June 1997. Source: HM Land Registry.

What is the price history for 18 Harpenden Lane, AL3 7PB?

Across 6 sales between June 1997 and February 2025, 18 Harpenden Lane, AL3 7PB rose from £108,000 to £675,000, a change of £567,000. That works out to roughly +6.8% per year compounded over 28 years. Source: HM Land Registry.

What is the EPC rating for 18 Harpenden Lane, AL3 7PB?

The current EPC rating for 18 Harpenden Lane, AL3 7PB is C with a score of 70 out of 100, lodged in September 2024. It has improved from a E recorded in November 2010 (2 bands). The assessor estimates the property could reach a B. Source: EPC Register.

How big is 18 Harpenden Lane, AL3 7PB?

18 Harpenden Lane, AL3 7PB has a recorded floor area of 100 m² (1,076 sq ft), around 25 m² per bedroom. That makes it about 26% larger than the median EPC-recorded property in AL3 7PB. Source: EPC Register.

What heating system does 18 Harpenden Lane, AL3 7PB use?

The latest EPC at 18 Harpenden Lane, AL3 7PB records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 18 Harpenden Lane, AL3 7PB?

18 Harpenden Lane, AL3 7PB is in council tax band D.

Which area is 18 Harpenden Lane, AL3 7PB in?

18 Harpenden Lane, AL3 7PB sits in Redbourn, St. Albans, St Albans. It falls within the AL3 postcode district in Hertfordshire.

What is crime like near 18 Harpenden Lane, AL3 7PB?

Police records around 18 Harpenden Lane, AL3 7PB show an average of 3 reported crimes per month over the last 8 months. Violent crime makes up roughly 55% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

What schools are near 18 Harpenden Lane, AL3 7PB?

The closest primary school to 18 Harpenden Lane, AL3 7PB is Redbourn Primary School (734m), one of 4 primaries within walking distance. The closest secondary is Roundwood Park School (2.5km).

How well connected is 18 Harpenden Lane, AL3 7PB?

The closest bus stop to 18 Harpenden Lane, AL3 7PB is Ver Road, 110m away. In total there are 30 bus stops within the surrounding area.

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18 Harpenden Lane, Redbourn, St Albans, AL3 7PB

6 sales on record1 planning record

Property type

Semi-detached

Bedrooms

Bathrooms

Floor area

100 m²

1076 sq ft

Energy rating

Score 70

Council tax

Band D

Tenure

Owner Occupied

Overview

About 18 Harpenden Lane

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

18 Harpenden Lane is a four-bedroom semi-detached house in Redbourn, St. Albans, St Albans (AL3 7PB). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (September 2024) shows a C (score 70). When first surveyed in November 2010 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor. The recommended improvements would push it to B (score 81). Other recorded features include a self-contained annexe. Records show the property has been extended at some point in its history.

Most recent transfer was February 2025 at £675,000 — fresh data. At 100 m² it's 20.9% larger than the typical home in the postcode (83 m² median across 21 EPCs). Its energy rating outperforms most of the postcode (better than 86% of similar EPCs). Across 1997–2025, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £768,000 is 13.8% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£627/sq ft) was about 101.4% above the typical sold price in the postcode. One historical planning record sits against the property in 2019.

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

Bedrooms4
Bathrooms2
Open-plan layoutYes
Dining roomYes
Utility roomYes
CloakroomYes
EnsuiteYes

Outside

Private gardenYes
ParkingOff street

Building

Previously extendedYes
RefurbishedYes

Before you decide

Everything you need to know about 18 Harpenden Lane

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

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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.

Current Certificate(1 of 2)

Sept 2024

EPC Rating

C70

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Good

CO2 Emissions

3.5 t/year

Occupancy

Owner Occupied

Property Improvements

Changes detected from historical EPC data

Sept 2024from Nov 2010

EPC improved fromE41toC70

Heating Controls

Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water

AverageGood

Hot water efficiency improved

Windows

AverageGood

Window efficiency improved

Low Energy Lighting

8%84%

More low energy lighting installed

Get a survey for this property

Level 3 Building Survey

Early 20th centurySemi-Detached HouseEPC CExtended multiple times (2+ extensions)Solid (non-cavity) walls

Because the property has been extended more than once and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £1,220 · Includes VAT

Planning

Planning history

Applications and permits filed against 18 Harpenden Lane, Redbourn, St Albans, AL3 7PB, sourced from the PlanIt planning register.

1 application on record at 18 Harpenden Lane, Redbourn, St Albans, AL3 7PB

1decisions1extensions11documents

Nov 2019
PorchFull
Outcome in report
Extension: Single storey
Single story side extension with canopy porch and pitch roof, two rooflights, alteration to openings and timber pergola to rear
Extension
Documents
11 docs on file
Reference
5/2019/2465
Full record in report

Unlock 18 Harpenden Lane, Redbourn, St Albans, AL3 7PB's full planning history

You're seeing the shape of it. The report has the substance.

Every decision — granted, refused or withdrawn (1 on record)
All 1 application on this property in full
The 11 documents, officer reports & conditions
What the pattern means for extending or converting here

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Price

Sales history & valuation

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

Price for 18 Harpenden Lane has grown more than fourfold since the 1997 starting point.

Current estimate

£768,000

Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 28 years.

See how we calculated this

Last sold (2025)

£675,000

Growth on file: 6.8% per year over 28 years.

Sales timeline

28 February 2025Most recent
£675,000
+42.1%over 5 years
18 August 2019
£475,000
+41.8%over 8 years
2 June 2011
£335,000
+48.9%over 8 years
3 January 2003
£225,000
+66.7%over 3 years
15 July 1999
£135,000
+25.0%over 2 years
5 June 1997
£108,000

Median price across the last 5 sales in AL3 7PB: £565,000 (2023–2021).

Nearby sales in AL3 7PB

On the street

Versus other Harpenden Lane homes

Four headline reads against 21 similar houses on this street, drawn from the latest EPC and Land Registry data.

On years held, 18 Harpenden Lane runs well behind the street norm.

Price per m²

£6,750

Street avg £5,194

Strongly above

Floor Area

100 m²

Street avg 92 m²

Above

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

3.5 t/year

Street avg 5.4 t/year

Strongly above

Before you decide

Everything you need to know about 18 Harpenden Lane

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

Pick your report · every report is £14.99

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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.

£774k

1 Coopers Meadow, Redbourn

AL3 7EY

4 bed3 bath

£782k

1 Draper Court, Peartree House, Crown Street, Redbourn

AL3 7HN

4 bed2 bath

£806k

1 Brooke End, Redbourn

AL3 7GA

4 bed

£726k

1 Bassett Close, Redbourn

AL3 7JY

4 bed

£656k

1 Appletree Grove, Cumberland Drive, Redbourn

AL3 7PG

4 bed

£685k

1 Fish Street Farm, High Street, Redbourn

AL3 7NS

3 bed1 bath

£613k

1 Crown Cottages, St Albans Road, Redbourn

AL3 7LH

3 bed

£986k

1 Dell Cottage, Lybury Lane, Redbourn

AL3 7JJ

5 bed3 bath

Area

The neighbourhood at a glance

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

Full St Albans report

Crime

3/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Ver Road — bus stop.

Closest school

0.7 km

Redbourn Primary School. 5 schools nearby.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18 Harpenden Lane, Redbourn, St Albans, AL3 7PB. Each answer is also embedded as structured data for search engines.