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20 St Johns Road, Watford, WD17 1QA

Property type
End terrace
Bedroom
1
Bathrooms
6
Floor area
149 m²
1604 sq ft
Energy rating
D
Score 57
Council tax
Band E
Tenure
Owner Occupied
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Overview

About 20 St Johns Road

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

20 St Johns Road is a one-bedroom end-of-terrace house in Watford (WD17 1QA). It has a recorded floor area of 149 m² (around 1604 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (October 2025) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 80).

At 149 m² the property is well over the postcode median (105 m² across 6 EPCs), placing it in the larger end of the local stock. Most recent transfer was January 2026 at £560,000 — fresh data. Across 1995–2026, sale prices on this property compounded at 6.7% per year. On a £-per-square-foot basis, the last sale (£349/sq ft) was about 27.4% above the typical sold price in the postcode.

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

  • Bedrooms1
  • Bathrooms6
Before you decide

Everything you need to know about 20 St Johns Road

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

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · from £14.99

One time fee only - money back guarantee

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.

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

Current Certificate
Oct 2025

EPC Rating

A
B
C
D
D57
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Poor
CO2 Emissions
6.9 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 8 October 2035

9 years remaining
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Early 20th centuryEnd-Terrace HouseEPC DSolid (non-cavity) walls

Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £1,155 · Includes VAT

Planning

Planning history

Applications and permits filed against 20 St Johns Road, Watford, WD17 1QA, sourced from the PlanIt planning register.

20 St Johns Road has no planning applications on record.

7

But the area is active

7 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.

20 St Johns Road has more than quadrupled in price since its earliest registered sale in 1995.

Current estimate

£614,000

Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 31 years.

See how we calculated this
Last sold (2026)

£560,000

Growth on file: 6.7% per year over 31 years.

Sales timeline

  1. 16 January 2026Most recent

    £560,000

    +617.9%over 30 years

  2. 29 June 1995

    £78,000

Median price across the last 5 sales in WD17 1QA: £590,000 (2022–2015).

On the street

Versus other St Johns Road homes

Four headline reads against 3 similar houses on this street, drawn from the latest EPC and Land Registry data.

Years Held for 20 St Johns Road lags the street by a wide margin.

Price per m²

£3,758

Street avg £4,100

Below

Floor Area

149 m²

Street avg 130 m²

Strongly above

Habitable Rooms

6 rooms

Street avg 6 rooms

Below

CO₂ Emissions

6.9 t/year

Street avg 7.7 t/year

Above
Before you decide

Everything you need to know about 20 St Johns Road

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

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · from £14.99

One time fee only - money back guarantee

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£235k

1 Elm Court, Albert Road South

WD17 1QQ

1 bed
£219k

10 Caledonian Court, West Street

WD17 1RY

1 bed
£219k

10 Woodford Road

WD17 1PA

1 bed1 bath
£435k

1 Franklin Road

WD17 1QD

2 bed1 bath
£174k

10a, Clarendon Road

WD17 1DY

1 bed1 bath
£398k

10 Franklin Road

WD17 1QD

2 bed1 bath
£353k

10 Terrace Gardens

WD17 1RB

2 bed1 bath
£339k

1 Orphanage Road

WD17 1PG

2 bed1 bath
Area

The neighbourhood at a glance

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

Rail-style transport is unusually close for this postcode.

Crime

266/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

West Street — bus stop.

Closest school

0.4 km

Watford St John's Church of England Primary School. 36 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 WD17 1QA from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for WD17 1QA

Daytime· 07:00 – 23:00

54.3dB

Low
Night-time road noise heatmap for WD17 1QA

Night-time· 23:00 – 07:00

44.8dB

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 20 St Johns Road, Watford, WD17 1QA. Each answer is also embedded as structured data for search engines.