What type of property is 20 Castle Grove, SG9 9GW?

20 Castle Grove, SG9 9GW is a 3-bedroom detached house, which has been extended.

What did 20 Castle Grove, SG9 9GW sell for?

20 Castle Grove, SG9 9GW last sold for £480,000 in September 2025. Before that, it sold for £395,000 in July 2019, so prices have been rising over 6 years on record. Source: HM Land Registry.

What is the price history for 20 Castle Grove, SG9 9GW?

Across 2 sales between July 2019 and September 2025, 20 Castle Grove, SG9 9GW rose from £395,000 to £480,000, a change of £85,000. That works out to roughly +3.2% per year compounded over 6 years. Source: HM Land Registry.

What is the EPC rating for 20 Castle Grove, SG9 9GW?

The current EPC rating for 20 Castle Grove, SG9 9GW is B with a score of 82 out of 100, lodged in June 2019. The assessor estimates the property could reach a A. Source: EPC Register.

What is the floor area of 20 Castle Grove, SG9 9GW?

20 Castle Grove, SG9 9GW has a recorded floor area of 98 m² (1,055 sq ft), around 33 m² per bedroom. That makes it about 8% smaller than the median EPC-recorded property in SG9 9GW. Source: EPC Register.

How is 20 Castle Grove, SG9 9GW heated?

The latest EPC at 20 Castle Grove, SG9 9GW records mains gas as the main heating fuel. Source: EPC Register.

Where is 20 Castle Grove, SG9 9GW located?

20 Castle Grove, SG9 9GW sits in Buntingford. It falls within the SG9 postcode district in Hertfordshire.

How safe is the area around 20 Castle Grove, SG9 9GW?

Police records around 20 Castle Grove, SG9 9GW show an average of 5 reported crimes per month over the last 4 months. Violent crime makes up roughly 43% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

Which schools serve 20 Castle Grove, SG9 9GW?

The closest primary school to 20 Castle Grove, SG9 9GW is Buntingford First School (158m), one of 3 primaries within walking distance. The closest secondary is Edwinstree Church of England Middle School (1.7km), with 2 secondaries in the surrounding area.

What is the nearest station to 20 Castle Grove, SG9 9GW?

The closest bus stop to 20 Castle Grove, SG9 9GW is Stearn Way, 288m away. In total there are 19 bus stops within the surrounding area.

Calculators

Featured

UK House Price Map

30 years of UK sold prices mapped by postcode district.

Postcode-level detail
Compare areas side by side

Open the map

20 Castle Grove, Buntingford, SG9 9GW

EPC B

Property type

Detached

Bedrooms

Bathrooms

Floor area

98 m²

1055 sq ft

Energy rating

Score 82

Overview

About 20 Castle Grove

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

20 Castle Grove is a three-bedroom detached house in Buntingford (SG9 9GW). It has a recorded floor area of 98 m² (around 1055 sq ft). The latest certificate (June 2019) returns a B (score 82), comfortably above the UK average. The recommended improvements would push it to A (score 93). Records show the property has been extended at some point in its history.

It changed hands recently, sold September 2025 for £480,000. Across 2019–2025, sale prices on this property compounded at 3.2% per year. On a £-per-square-foot basis, the last sale (£455/sq ft) was about 25.5% above the typical sold price in the postcode.

Before you offer

Know exactly what you're buying at 20 Castle Grove

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

Already flagged here

Larger development activity nearby

£14.99

Trusted by UK homebuyers

Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

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

Bedrooms3
Bathrooms2
Dining roomYes
EnsuiteYes

Outside

Private gardenYes
GarageSingle

Building

Previously extendedYes
RefurbishedYes

Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

EPC Rating

B82

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Very Good

CO2 Emissions

1.8 t/year

Occupancy

—

Planning

Planning history

Applications and permits filed against 20 Castle Grove, Buntingford, SG9 9GW, sourced from the PlanIt planning register.

20 Castle Grove has no planning applications on record.

Notable planning nearby

4applications of note in the surrounding area

Before you offer

We flagged 1 thing worth checking at 20 Castle Grove

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.

Larger development activity nearby

£14.99

30-day money-back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

Latest sale on 20 Castle Grove was the highest on Land Registry record across the postcode.

Current estimate

£491,000

Modelled from EPC, postcode comparables and a sale-price growth of 3.2% per year over 6 years.

See how we calculated this

Last sold (2025)

£480,000

Growth on file: 3.2% per year over 6 years.

Sales timeline

16 September 2025Most recent
£480,000
+21.5%over 6 years
30 July 2019
£395,000

Median price across the last 5 sales in SG9 9GW: £420,000 (2019–2019).

Nearby sales in SG9 9GW

Before you offer

Everything we know about 20 Castle Grove, in one report

What it's really worth, what could be wrong, and the planning, sales and area data in full.

What we flagged

Larger development activity nearby

£14.99

Trusted by UK homebuyers

On the street

Versus other Castle Grove homes

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

20 Castle Grove outperforms the street on price per m² by a wide margin.

Price per m²

£4,898

Street avg £3,859

Strongly above

Floor Area

98 m²

Street avg 106 m²

Below

CO₂ Emissions

1.8 t/year

Street avg 1.8 t/year

On par

Years Held

1 years

Street avg 7 years

Strongly below

Comparables

Similar properties nearby

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

£431k

1 Bowling Green Lane

SG9 9DF

3 bed1 bath

£429k

1 Castle Grove

SG9 9GW

3 bed2 bath

£392k

1 Bridgefoot House, Union Terrace

SG9 9AP

3 bed

£965k

1 Applewood

SG9 9GF

3 bed3 bath

£545k

1 Aldridge Way

SG9 9FX

4 bed2 bath

£708k

1 Campbell Close

SG9 9BY

4 bed2 bath

£841k

1 Baker Drive

SG9 9RZ

4 bed2 bath

£1.2m

1 Cherry Green Barns, Cherry Green, Westmill

SG9 9NQ

4 bed3 bath

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Buntingford district page.

Full Buntingford report

Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.

Crime

5/mo

Steady year-on-year across the wider district.

Nearest stop

0.3 km

Stearn Way — bus stop.

Closest school

0.2 km

Buntingford First School. 5 schools nearby.

Go deeper on the local area

The full 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 SG9 9GW from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

49.8dB

Low

Night-time road noise heatmap for SG9 9GW

Night-time· 23:00 – 07:00

40.6dB

Low

55 dB

60 dB

65 dB

70 dB

75 dB

80 dB

Defra Road Noise Strategic Mapping, Round 4

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 20 Castle Grove, Buntingford, SG9 9GW. Each answer is also embedded as structured data for search engines.