Boundary House, Hermongers Lane, Rudgwick, Horsham, RH12 3AH
About Boundary House
Boundary House is a three-bedroom detached house in Rudgwick, Horsham, Horsham (RH12 3AH). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (September 2014) shows an F (score 31), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 82), a 4-band jump. Main heating runs on oil. The latest certificate is from September 2014, so improvements made since then won't be reflected. Other recorded features include outbuildings. The home occupies a cul-de-sac position.
3 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Across 2015–2022, sale prices on this property compounded at 8.7% per year. On a £-per-square-foot basis, the last sale (£588/sq ft) was about 23.3% above the typical sold price in the postcode. Sold July 2022 for £620,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Boundary 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
- Bedrooms3
- Bathrooms2
Outside
- Garagedouble
- OutbuildingsYes
- Cul-de-sacYes
Building
- RefurbishedYes
Energy performance
Boundary House's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Sept 2024
EPC Rating
Planning history
Boundary House has 2 separate extension applications on the council record.
- Nov 2024Garage ConversionFullIn report
Extension: Single storey · Side of property
Alterations to garage to provide habitable accommodation and link single storey extension.
Extension- Documents
- 13 docs on file
- Reference
- WA/2024/01847
- Sept 2016ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of first floor rear extension.
- Documents
- 12 docs on file
- Reference
- WA/2016/1515
We flagged 1 thing worth checking at Boundary 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
30-day money-back guarantee
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£603,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.7% per year over 7 years.
£620,000
Growth on file: 8.7% per year over 7 years.
Sales timeline
24 July 2022Most recent
£620,000
+85.1%over 7 years2 March 2015
£335,000
Median price across the last 5 sales in RH12 3AH: £567,500 (2025–2021).
Nearby sales in RH12 3AH
The Lawley Cottage, Hermongers Lane, Rudgwick, Horsham, RH12 3AH
Sold Aug 2025
£380,00015 Hermongers Lane, Rudgwick, Horsham, RH12 3AH
Sold Nov 2024
£875,0001 Hillcrest Cottages, Hermongers Lane, Rudgwick, Horsham, RH12 3AH
Sold Jun 2024
£567,50012 Hermongers Lane, Rudgwick, Horsham, RH12 3AH
Sold Aug 2022
£465,000Bramdean, Hermongers Lane, Rudgwick, Horsham, RH12 3AH
Sold Oct 2021
£900,000
Everything we know about Boundary 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

Versus other Hermongers Lane homes
On co₂ emissions, Boundary House runs well behind the street norm.
Price per m²
£6,327
Street avg £6,353
Floor Area
98 m²
Street avg 110 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
9.5 t/year
Street avg 5.3 t/year
Similar properties nearby
1 Barley Mews, Rudgwick
RH12 3XL
1 Brookhurst Field, Foxholes, Rudgwick
RH12 3DQ
1 Buck Way, Broadbridge Heath
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1 Arundene Cottage, Loxwood Road, Rudgwick
RH12 3BT
1 Adams Close, Broadbridge Heath
RH12 3UT
1 Buckhurst Cottages, Church Street, Rudgwick
RH12 3EZ
1 Chantler Lane, Broadbridge Heath
RH12 3TW
1 Bell Road, Warnham
RH12 3QJ
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
0.3 km
Hermonger Lane — bus stop.
Closest school
1.9 km
Rudgwick Primary School. 1 school 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
43.3dB

Night-time· 23:00 – 07:00
37.5dB