20 St Marys Road, Watford, WD18 0EF
About 20 St Marys Road
20 St Marys Road is a two-bedroom mid-terrace house in Watford (WD18 0EF). It has a recorded floor area of 75 m² (around 809 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (October 2010) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 60). The latest certificate is from October 2010, so improvements made since then won't be reflected. Other recorded features include a balcony.
Across 1999–2013, sale prices on this property compounded at 9.3% per year. Today's modelled estimate of £359,000 sits 52.8% above the 2013 sale of £235,000. On a £-per-square-foot basis, the last sale (£290/sq ft) was about 37.8% above the typical sold price in the postcode. Last changed hands 13 years ago, in April 2013. Across the public record there are 7 sales, relatively high churn for a single property. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).
Know exactly what you're buying at 20 St Marys 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
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms2
- Dining roomYes
Outside
- Private gardenYes
- BalconyYes
Building
- RefurbishedYes
Energy performance
20 St Marys Road's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 Oct 2020
EPC Rating
Planning history
20 St Marys Road has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at 20 St Marys 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
30-day money-back guarantee
Sales history & valuation
Sale price has grown by over 3x since 1999.
£359,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.3% per year over 14 years.
£235,000
Growth on file: 9.3% per year over 14 years.
Sales timeline
9 April 2013Most recent
£235,000
+16.0%over 2 years10 December 2010
£202,500
+17.7%over 4 years15 June 2006
£172,000
+1.2%over 1 year11 August 2004
£169,950
+9.6%over 1 year1 April 2003
£155,000
+44.9%over 2 years22 August 2000
£107,000
+56.2%over 1 year24 June 1999
£68,500
Median price across the last 5 sales in WD18 0EF: £360,000 (2025–2016).
Nearby sales in WD18 0EF
Everything we know about 20 St Marys 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
- Signs of HMO activity in the area

Versus other St Marys Road homes
EPC Rating for 20 St Marys Road lags the street by a wide margin.
Price per m²
£3,126
Street avg £3,199
Floor Area
75 m²
Street avg 71 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
4.7 t/year
Street avg 3.3 t/year
Similar properties nearby
1 Addison Court, St Marys View
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1 Cannon Road
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1 Holywell Road
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1 Farthing Close
WD18 0BT
1 Durban Road East
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1 Cardiff Road
WD18 0DS
1 Bridgeford House, Cassio Road
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1 Chester Road
WD18 0RG
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Wiggenhall Road — bus stop.
Closest school
0.1 km
Watford Grammar School for Girls. 35 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
55.7dB

Night-time· 23:00 – 07:00
46.8dB