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44 Harmer Green Lane, Welwyn, AL6 0AT

EPC B4 planning records
Property type
Detached
Bedrooms
4
Floor area
238 m²
2562 sq ft
Energy rating
B
Score 85
Council tax
Band G
Tenure
Owner Occupied
Overview

About 44 Harmer Green Lane

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

44 Harmer Green Lane is a four-bedroom detached house in Welwyn (AL6 0AT). It has a recorded floor area of 238 m² (around 2562 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (October 2024) returns a high B (score 85), putting the home a stone's throw from an A rating. When first surveyed in September 2010 the rating was F, the property has climbed 4 bands since. Between certificates, window efficiency went from Very Poor to Poor, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to A (score 95).

Held since March 2011 — that's 15 years off the open market, well above the local norm. On energy efficiency it sits in the top 10% of properties in this postcode. Across 2004–2011, sale prices on this property compounded at 2.8% per year. Today's modelled estimate of £1,335,000 sits 58% above the 2011 sale of £845,000. 4 planning records sit against the property, 2 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved.

Before you offer

Know exactly what you're buying at 44 Harmer Green Lane

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

Already flagged here

Larger development activity nearby
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Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

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
Energy

Energy performance

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

44 Harmer Green Lane ranks among the most efficient homes in the postcode for energy use.

Current Certificate(1 of 2)
Oct 2024

EPC Rating

A
B
B85
C
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
3.8 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Oct 2024from Sept 2010
EPC improved fromF34toB85
Hot Water
Main (No Stat)Main System

Hot water system upgraded

Windows
SinglePartial Double

Single glazing replaced with double or better glazing

Low Energy Lighting
4%100%

More low energy lighting installed

Renewable Energy
NoneSolar PV

Solar PV panels (50 kWp) installed

Planning

Planning history

Applications and permits filed against 44 Harmer Green Lane, Welwyn, AL6 0AT, sourced from the PlanIt planning register.
  1. Nov 2011
    Amendment
    In report

    Non material amendment following approval of planning permission N6/2011/0847/FP - Change in roof design for front elevation now a dummy pitch with roof taken across garage forming a crown roof over

    Documents
    2 docs on file
    Reference
    N6/2011/2325/NM
    View planning record
  2. Jul 2011
    ExtensionFull
    In report

    Extension: Single storey · Side and rear of property

    Erection of single storey rear and side extension with replacement garage

    Documents
    6 docs on file
    Reference
    N6/2011/0847/FP
    View planning record
Before you offer

We flagged 1 thing worth checking at 44 Harmer Green Lane

Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.

  • Larger development activity nearby
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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.

44 Harmer Green Lane valuation sits well clear of the typical sold price in this postcode.

Current estimate

£1,335,000

Modelled from EPC, postcode comparables and a sale-price growth of 2.8% per year over 7 years.

See how we calculated this
Last sold (2011)

£845,000

Growth on file: 2.8% per year over 7 years.

Sales timeline

  1. 23 March 2011Most recent

    £845,000

    +20.7%over 6 years
  2. 29 June 2004

    £700,000

Median price across the last 5 sales in AL6 0AT: £1,726,000 (2025–2018).

Before you offer

Everything we know about 44 Harmer Green Lane, in one report

What it's really worth, what could be wrong, and the planning, sales and area data in full.

What we flagged

  • Larger development activity nearby
£14.99
Trusted by UK homebuyers
Preview of the full property report
On the street

Versus other Harmer Green Lane homes

Four headline reads against 8 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 44 Harmer Green Lane runs well behind the street norm.

Price per m²

£3,550

Street avg £5,251

Strongly below

Floor Area

238 m²

Street avg 256 m²

Below

Habitable Rooms

7 rooms

Street avg 8 rooms

Below

CO₂ Emissions

3.8 t/year

Street avg 8.2 t/year

Strongly above
Area

The neighbourhood at a glance

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

Rail-style transport is unusually close for this postcode.

Crime

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Welwyn North Railway Station — bus stop.

Closest school

0.8 km

St John's CofE Primary School. 14 schools nearby.

Go deeper on the local area

The full 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 44 Harmer Green Lane, Welwyn, AL6 0AT. Each answer is also embedded as structured data for search engines.