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15 Cassiobury Drive, Watford, WD17 3AA

3 sales on record3 planning records

Estimated value

£1,105,000

  • Since the 2019 sale (£930,000)+19%
  • Against WD17 3AA's recent median (£975,000)+13%

Newest record on this page: September 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Bedrooms
4
Bathrooms
2
Floor area
174 m²
1873 sq ft
Energy rating
D
Score 67
Council tax
Band G
Tenure
Owner Occupied
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£1,105,000

  • Against its 2019 sale (£930,000)+19%
  • Against WD17 3AA's recent median (£975,000)+13%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 15 Cassiobury Drive is modelled from its 174 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in WD17 3AA. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    174 m² from the EPC lodged in June 2019

  • Sales of this home

    3 sales recorded, the latest in 2019

  • Recent sales in WD17 3AA

    5 sales, median £975,000 (2025–2019)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: September 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 of 3 applicationsFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

15 Cassiobury Drive valuation sits well clear of the typical sold price in this postcode.

Sales timeline

  1. 9 September 2019Most recent

    £930,000

    +60.3%over 15 years

  2. 1 August 2004

    £580,000

    +20.1%over 8 months

  3. 18 November 2003

    £483,000

Median price across the last 5 sales in WD17 3AA: £975,000 (2025–2019).

Risks

What this page doesn't show

1 potential issue has already been flagged for 15 Cassiobury Drive, Watford, WD17 3AA. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About 15 Cassiobury Drive

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

15 Cassiobury Drive is a four-bedroom detached house in Watford (WD17 3AA). It has a recorded floor area of 174 m² (around 1873 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (June 2019) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2019. Between certificates, roof efficiency went from Very Poor to Good. The recommended improvements would lift it to B (score 85), a 2-band jump.

At 174 m² it's 15.2% larger than the typical home in the postcode (151 m² median across 16 EPCs). Across 2003–2019, sale prices on this property compounded at 4.2% per year. Today's modelled estimate of £1,105,000 is 18.8% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£497/sq ft) was about 46.2% above the typical sold price in the postcode. 3 planning records sit against the property, 0 approved, 0 refused. Last sale on file: £930,000 in September 2019.

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

  • Bedrooms4
  • Bathrooms2
  • EnsuiteYes

Outside

  • ParkingOff road

Building

  • RefurbishedYes
Before you decide

Everything you need to know about 15 Cassiobury Drive

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

Larger development activity nearby

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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.

15 Cassiobury Drive's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
Jun 2019

EPC Rating

A
B
C
D
D67
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
6.2 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 20 June 2029

2 years remaining

Property Improvements

Changes detected from historical EPC data

Jun 2019from May 2019
Roof Insulation
UninsulatedWell Insulated

Loft insulation installed or upgraded to 250mm+

Planning

Planning history

Applications and permits filed against 15 Cassiobury Drive, Watford, WD17 3AA, sourced from the PlanIt planning register.

Multiple extension applications run across more than a decade of planning history at 15 Cassiobury Drive.

3 applications on record at 15 Cassiobury Drive, Watford, WD17 3AA

3decisions3extensions57documents1nearby
  1. Apr 2012
    ExtensionFull
    Outcome in report

    Extension: Single storey · Rear of property

    Erection of a single storey rear extension.

    Documents
    32 docs on file
    Reference
    12/00131/FULH
    Full record in report
  2. More recent applications — locked
  3. ExtensionDecision
  4. ExtensionDecision

Unlock 15 Cassiobury Drive, Watford, WD17 3AA's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (3 on record)
  • All 3 applications on this property in full, plus 1 notable nearby
  • The 57 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Cassiobury Drive homes

Four headline reads against 16 similar houses on this street, drawn from the latest EPC and Land Registry data.

15 Cassiobury Drive outperforms the street on co₂ emissions by a wide margin.

Price per m²

£5,345

Street avg £5,318

On par

Floor Area

174 m²

Street avg 170 m²

On par

Habitable Rooms

7 rooms

Street avg 7 rooms

On par

CO₂ Emissions

6.2 t/year

Street avg 7.6 t/year

Above
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

Cassiobury Park Avenue — bus stop.

Closest school

0.2 km

West Herts College. 35 schools nearby.

Nearest schools

  • West Herts College16 plus194m
  • Lanchester Primary SchoolPrimary212m
  • Chater Infant SchoolPrimary528m
  • Watford Grammar School for BoysSecondary620m

Nearest stops

  • Cassiobury Park AvenueBus stop182m
  • Cassiobury Park AvenueBus stop236m
  • Town HallBus stop337m
  • Shepherds RoadBus stop390m

Most reported crime locally

  • Violence & Sexual Offences1,094 reports29%
  • Anti-social Behaviour733 reports20%
  • Shoplifting489 reports13%
  • Other Theft287 reports8%

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 3AA from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for WD17 3AA

Daytime· 07:00 – 23:00

52.4dB

Low
Night-time road noise heatmap for WD17 3AA

Night-time· 23:00 – 07:00

43.3dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraDetached HouseEPC DPre-1919 buildSolid (non-cavity) walls

Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £1,645 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£1.0m

1 Stratford Way

WD17 3DH

4 bed
£1.0m

1 Roughwood Close

WD17 3HN

4 bed2 bath
£1.3m

1 Temple Close

WD17 3DR

4 bed2 bath
£850k

1 Bellmount Wood Avenue

WD17 3BN

4 bed
£720k

10 Beechpark Way

WD17 3TY

4 bed
£1.1m

1 Richmond Drive

WD17 3BQ

5 bed3 bath
£890k

1 Peace Drive

WD17 3XE

5 bed
£832k

10 Bellmount Wood Avenue

WD17 3BW

3 bed1 bath

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 15 Cassiobury Drive is modelled from its 174 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in WD17 3AA. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 3 sales are recorded for 15 Cassiobury Drive. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 15 Cassiobury Drive was lodged in June 2019 at band D and is valid until June 2029. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 3 applications are matched to 15 Cassiobury Drive. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 14 months, which places each incident at an approximate point. The 35 schools and 30 stops listed are measured in a straight line from WD17 3AA, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
15 Cassiobury Drive is in council tax band G. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 15 Cassiobury Drive, Watford, WD17 3AA. Each answer is also embedded as structured data for search engines.

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