The Red House, Church Street, Warnham, Horsham, RH12 3QW
About The Red House
The Red House is a six-bedroom detached house in Warnham, Horsham, Horsham (RH12 3QW). It has a recorded floor area of 359 m² (around 3864 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (June 2023) shows an F (score 31), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 77), a 3-band jump.
At 359 m² the property is well over the postcode median (106 m² across 3 EPCs), placing it in the larger end of the local stock. 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and tree works, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. On a £-per-square-foot basis, the last sale (£330/sq ft) was about 35.2% above the typical sold price in the postcode. Most recent transfer: December 2024 at £1,275,000.
Know exactly what you're buying at The Red House
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms6
- Bathrooms3
- Dining roomYes
- EnsuiteYes
- StudyYes
Outside
- Private gardenYes
- Garagedouble
Energy performance
The Red House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
The Red House has an approved single-storey rear extension on the planning record.
- Jul 2025ExtensionFullIn report
Extension: Single storey · Rear of property
Removal of existing flat roof over previous extension and replaced with a pitched tile roof. Erection of a single storey rear extension. Installation of rooflights.
- Agent
- Marlon Haus Ltd
- Documents
- 23 docs on file
- Reference
- DC/25/0772
- Nov 2009Tree WorksTreesIn report
Fell 1 Thuja Conifer (T1) and surgery to a row of Thuja Conifer trees (T2) (Work to Trees in a Conservation Area)
- Agent
- Capel Tree Surgeons
Conservation Area- Documents
- 6 docs on file
- Reference
- DC/09/1813
We flagged 1 thing worth checking at The Red House
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
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Sales history & valuation
Latest sale on The Red House was the highest on Land Registry record across the postcode.
£1,151,000
Modelled from EPC, postcode comparables.
£1,275,000
Recorded with HM Land Registry.
Sales timeline
4 December 2024Most recent
£1,275,000
Median price across the last 5 sales in RH12 3QW: £465,000 (2023–2015).
Nearby sales in RH12 3QW
10 Church Street, Warnham, Horsham, RH12 3QW
Sold Aug 2023
£575,00014 Church Street, Warnham, Horsham, RH12 3QW
Sold Feb 2017
£465,00014a, Church Street, Warnham, Horsham, RH12 3QW
Sold Jun 2016
£320,0006 Church Street, Warnham, Horsham, RH12 3QW
Sold Jul 2015
£320,0008 Church Street, Warnham, Horsham, RH12 3QW
Sold Apr 2000
£149,950
Everything we know about The Red House, 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

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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Church — bus stop.
Closest school
0.2 km
Warnham CofE Primary School. 8 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
47.1dB

Night-time· 23:00 – 07:00
38.8dB