Flat 1, 27 St Johns Road, Watford, WD17 1PY
About Flat 1
Flat 1 is a one-bedroom semi-detached house in Watford (WD17 1PY). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1900-1929 and council tax band C. At 46 m² this is the smallest unit on EPC record across the building (46–50 m²). The building's EPC ratings span D to C, with this unit at the bottom. Period features are noted in the property record. The latest certificate (June 2024) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2014. Between certificates, window efficiency went from Poor to Good and lighting went from Good to Very Good. The recommended improvements would push it to C (score 75).
It hasn't traded since March 2008, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs). Across 1998–2008, sale prices on this property compounded at 12.1% per year. Today's modelled estimate of £233,000 is 28.7% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£366/sq ft) was about 37.1% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms1
- Bathrooms1
Outside
- ParkingYes
Building
- Heating systemGas
- Period featuresYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
Flat 1 has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 2 things worth checking at Flat 1
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
Flat 1 has more than tripled in price since its earliest registered sale in 1998.
£233,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.1% per year over 10 years.
£181,000
Growth on file: 12.1% per year over 10 years.
Sales timeline
28 March 2008Most recent
£181,000
+212.1%over 9 years29 March 1998
£58,000
Median price across the last 5 sales in WD17 1PY: £217,500 (2025–2009).
Nearby sales in WD17 1PY
Laurel House, Flat 5, 29 St Johns Road, Watford, WD17 1PY
Sold Oct 2025
£198,500Laurel House, Flat 2, 29 St Johns Road, Watford, WD17 1PY
Sold Dec 2022
£217,500Laurel House, Flat 4, 29 St Johns Road, Watford, WD17 1PY
Sold Nov 2018
£218,000Flat 2, 27 St Johns Road, Watford, WD17 1PY
Sold Jan 2017
£249,995Flat 3, 27 St Johns Road, Watford, WD17 1PY
Sold Oct 2003
£131,500
Versus other St Johns Road homes
EPC Rating for Flat 1 lags the street by a wide margin.
Price per m²
£3,935
Street avg £4,289
Floor Area
46 m²
Street avg 43 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.5 t/year
Street avg 1.8 t/year
Similar properties nearby
112a, Flat 14, The Parade, High Street
WD17 1AU
112a, Flat 9, The Parade, High Street
WD17 1AU
135a, Flat 14, The Parade, High Street
WD17 1BS
135a, Flat 16, The Parade, High Street
WD17 1BS
135a, Flat 12, The Parade, High Street
WD17 1BS
112a, Flat 1, The Parade, High Street
WD17 1AU
112a, Flat 12, The Parade, High Street
WD17 1AU
112a, Flat 4, The Parade, High Street
WD17 1AU
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
St John's Road — 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
54.5dB

Night-time· 23:00 – 07:00
45.1dB








