34 St Johns Road, Watford, WD17 1QA
About 34 St Johns Road
34 St Johns Road is a semi-detached house in Watford (WD17 1QA). It has a recorded floor area of 138 m² (around 1485 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (June 2021) shows a C (score 74). When first surveyed in April 2018 the rating was G, the property has climbed 4 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Average to Good and hot-water efficiency went from Very Poor to Good. The recommended improvements would push it to B (score 88).
At 138 m² the property is well over the postcode median (105 m² across 6 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £650,000 sits 50.8% above the 2018 sale of £431,126. 10 planning records sit against the property, 4 approved, 6 refused. Past consents include HMO conversion, change of use to residential, a loft conversion and an extension, meaningful when judging how the property has evolved. Most recent transfer: November 2018 at £431,126.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Upgraded to gas central heating
Hot water system upgraded
Window efficiency improved
Roof insulation improved
More low energy lighting installed
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Mar 2021HMOAmendmentIn report
Lawful Development Certificate to change the use from Class C3 dwelling to Class C4 (up to six people living together as a single household of multiple occupancy).
Change of Use- Documents
- 7 docs on file
- Reference
- 21/00272/LDC
- Jul 2020SubdivisionAmendmentIn report
Change of use from dwelling house to 2 flats - 1 x 2 bedroom flat and 1 x 3 bedroom flat with communal garden, 1 parking space and associated bin and cycle storage
- Documents
- 22 docs on file
- Reference
- 20/00470/COU
We flagged 2 things worth checking at 34 St Johns 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.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
34 St Johns Road valuation sits well clear of the typical sold price in this postcode.
£650,000
Modelled from EPC, postcode comparables.
£431,126
Recorded with HM Land Registry.
Sales timeline
30 November 2018Most recent
£431,126
Median price across the last 5 sales in WD17 1QA: £590,000 (2022–2010).
Nearby sales in WD17 1QA
Versus other St Johns Road homes
EPC Rating for 34 St Johns Road runs comfortably ahead of the street norm.
Price per m²
£3,124
Street avg £3,233
Floor Area
138 m²
Street avg 134 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.7 t/year
Street avg 8.8 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Steady 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
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
54.3dB

Night-time· 23:00 – 07:00
44.8dB








