Gore Hill House, Haslingbourne Lane, Petworth, GU28 0JJ
About Gore Hill House
Gore Hill House is an eight-bedroom detached house in Petworth (GU28 0JJ). It has a recorded floor area of 143 m² (around 1539 sq ft) and construction records dating it to 1930-1949. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Other recorded features include outbuildings and a basement. The latest certificate (April 2023) shows an F (score 36), near the bottom of the EPC scale. Earlier certificates rated it D (January 2022); the latest reading is 2 bands lower. Between certificates, wall efficiency went from Very Poor to Poor and window efficiency went from Very Poor to Poor; while roof efficiency dropped from Average to Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to D (score 68), a 2-band jump. Main heating runs on oil.
Today's modelled estimate of £1,867,000 is 22.2% below the 2023 sale of £2,400,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£1,559/sq ft) was about 360.7% above the typical sold price in the postcode. 10 planning records sit against the property, 4 approved, 4 refused, 1 pending. Past consents include an extension and an annexe, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. At 143 m² it sits well below the postcode median (296 m² across 5 EPCs), making it one of the more compact homes locally. 8 bedrooms is on the larger side for this postcode, where 3 is the typical count. Last sale on file: £2,400,000 in May 2023.
Know exactly what you're buying at Gore Hill House
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
What this property has
Inside
- Bedrooms8
- Bathrooms5
- Dining roomYes
- Utility roomYes
- EnsuiteYes
- StudyYes
- BasementYes
- FireplaceYes
Outside
- Private gardenWrap around
- GarageYes
- OutbuildingsYes
Building
- Listed buildingYes
Energy performance
Gore Hill House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Fuel source changed
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Single glazing replaced with double or better glazing
Wall insulation improved
Low energy lighting percentage decreased
Planning history
An application for partial demolition is currently awaiting a decision.
- Jun 2025DemolitionFullIn report
Extension: Front of property
Demolition of existing rear conservatory, two storey front extension with associated roof works, alterations and additions to fenestration, re-rendering of external walls and alterations to roof over existing northern single storey extension.
- Agent
- Engineering Architecture Ltd
Extension- Documents
- 46 docs on file
- Reference
- SDNP/25/02598/HOUS
- May 2025OutbuildingFullIn report
Single storey detached garage with work room over in attic.
- Agent
- Engineering Architecture Ltd
- Documents
- 8 docs on file
- Reference
- SDNP/25/01975/HOUS
What's in Gore Hill House, Haslingbourne Lane, Petworth, GU28 0JJ's planning history?
8 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Gore Hill House valuation sits well clear of the typical sold price in this postcode.
£1,867,000
Modelled from EPC, postcode comparables.
£2,400,000
Recorded with HM Land Registry.
Sales timeline
21 May 2023Most recent
£2,400,000
Median price across the last 5 sales in GU28 0JJ: £820,000 (2024–1997).
Everything we know about Gore Hill House, 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 Haslingbourne Lane homes
Price per m² for Gore Hill House runs comfortably ahead of the street norm.
Price per m²
£16,783
Street avg £4,358
Floor Area
143 m²
Street avg 320 m²
Habitable Rooms
5 rooms
Street avg 9 rooms
CO₂ Emissions
8.9 t/year
Street avg 13.6 t/year
Similar properties nearby
1 Burton House, Burton Park, Duncton
GU28 0QU
1 Bushey Cottages, South Lane, Tillington
GU28 0RE
1 Chestnut Cottages, Byworth
GU28 0HP
1 Boderton Mews, Burton Park, Duncton
GU28 0LS
1 Church Cottage, Barlavington
GU28 0LG
1 Blackberry Road
GU28 0PF
1 Church View, Angel Street
GU28 0BG
1 Biddulph Mews, Duncton
GU28 0PD
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.9 km
Village — bus stop.
Closest school
1.1 km
Petworth Cof E Primary School. 2 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
43.8dB

Night-time· 23:00 – 07:00
36.1dB