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20 Hertford Road, Tewin, Welwyn, AL6 0JY

2 planning records
Property type
Detached
Bedrooms
5
Bathroom
1
Floor area
164 m²
1765 sq ft
Energy rating
D
Score 58
Council tax
Band G
Tenure
Owner Occupied
Overview

About 20 Hertford Road

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

20 Hertford Road is a five-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0JY). It has a recorded floor area of 164 m² (around 1765 sq ft), construction records dating it to 1967-1975 and council tax band G. The latest certificate (January 2016) shows a D (score 58), a step below the typical UK home. When first surveyed in December 2015 the rating was E, the property has climbed 1 band since. The recommended improvements would push it to C (score 78). The latest certificate is from January 2016, so improvements made since then won't be reflected.

2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. 10 years since the last transfer (May 2016). Across 2001–2016, sale prices on this property compounded at 7% per year. Today's modelled estimate of £888,000 is 18.4% above the 2016 sale price.

Before you offer

Know exactly what you're buying at 20 Hertford Road

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

  • Bedrooms5
  • Bathrooms1
Energy

Energy performance

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

20 Hertford Road's carbon output runs well above what efficient homes in the postcode produce.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 25 Jan 2026

Current Certificate(1 of 2)
Jan 2016

EPC Rating

A
B
C
D
D58
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
8.0 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Jan 2016from Dec 2015
EPC improved fromE54toD58
Planning

Planning history

Applications and permits filed against 20 Hertford Road, Tewin, Welwyn, AL6 0JY, sourced from the PlanIt planning register.

20 Hertford Road has 2 separate extension applications on the council record.

  1. Aug 2012
    ExtensionFull
    In report

    Extension: Single storey · Rear of property

    Single storey rear extension

    Agent
    Hertford Planning Service
    Documents
    9 docs on file
    Reference
    3/12/1139/FP
    View planning record
  2. Aug 2012
    ExtensionFull
    In report

    Extension: Rear of property

    Two storey rear extension and alterations to fenestration

    Agent
    Hertford Planning Service
    Documents
    11 docs on file
    Reference
    3/12/1145/FP
    View planning record
Before you offer

We flagged 1 thing worth checking at 20 Hertford Road

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.

Sale price has at least doubled since 2001.

Current estimate

£888,000

Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 15 years.

See how we calculated this
Last sold (2016)

£750,000

Growth on file: 7.0% per year over 15 years.

Sales timeline

  1. 26 May 2016Most recent

    £750,000

    +180.9%over 15 years
  2. 15 January 2001

    £267,000

Median price across the last 5 sales in AL6 0JY: £765,000 (2021–2015).

Before you offer

Everything we know about 20 Hertford Road, 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 Hertford Road homes

Four headline reads against 16 similar houses on this street, drawn from the latest EPC and Land Registry data.

Habitable Rooms for 20 Hertford Road runs comfortably ahead of the street norm.

Price per m²

£4,573

Street avg £5,033

On par

Floor Area

164 m²

Street avg 155 m²

On par

Habitable Rooms

8 rooms

Street avg 6 rooms

Strongly above

CO₂ Emissions

8.0 t/year

Street avg 5.6 t/year

Below
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.

Crime

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Rose and Crown PH — bus stop.

Closest school

0.1 km

Tewin Cowper Church of England Voluntary Aided Primary School. 8 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 20 Hertford Road, Tewin, Welwyn, AL6 0JY. Each answer is also embedded as structured data for search engines.