9 Caractacus Green, Watford, WD18 6JU
About 9 Caractacus Green
9 Caractacus Green is a semi-detached house in Watford (WD18 6JU). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (August 2019) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump.
2 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion and an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £510,000 is 37.8% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£404/sq ft) was about 49.5% above the typical sold price in the postcode. Last sale on file: £370,000 in November 2019.
Know exactly what you're buying at 9 Caractacus Green
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Feb 2020Loft ConversionAmendmentIn report
Lawful Development Certificate for proposed hip to gable loft conversion with rear dormer and 3no. front roof lights
- Documents
- 8 docs on file
- Reference
- 19/01456/LDC
- Jan 2020ExtensionOutlineIn report
Extension: Single storey · Rear of property
The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6.0m for which the maximum height would be 3.0m and for which the height of the eaves would be 3.0m
- Documents
- 7 docs on file
- Reference
- 19/01417/HPD
What's in 9 Caractacus Green, Watford, WD18 6JU's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
9 Caractacus Green valuation sits well clear of the typical sold price in this postcode.
£510,000
Modelled from EPC, postcode comparables.
£370,000
Recorded with HM Land Registry.
Sales timeline
18 November 2019Most recent
£370,000
Median price across the last 5 sales in WD18 6JU: £442,500 (2024–2019).
Nearby sales in WD18 6JU
Everything we know about 9 Caractacus Green, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Caractacus Green homes
On habitable rooms, 9 Caractacus Green runs well behind the street norm.
Price per m²
£4,353
Street avg £3,645
Floor Area
85 m²
Street avg 88 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 4.0 t/year
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Healey Road — bus stop.
Closest school
0.3 km
Willow Tree Primary School. 33 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
47.9dB

Night-time· 23:00 – 07:00
39.2dB