21 Prewetts Mill Apartments, Mill Bay Lane, Horsham, RH12 1ST
About 21 Prewetts Mill Apartments
21 Prewetts Mill Apartments is an end-of-terrace house in Horsham (RH12 1ST). It has a recorded floor area of 83 m² (around 893 sq ft) and construction records dating it to 2012 onwards. At 83 m² this is the 56th smallest of 59 units on EPC record in the building, where floor areas span 30–90 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (June 2024) shows a C (score 74). When first surveyed in November 2017 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Good to Very Good, hot-water efficiency went from Very Poor to Poor and main heating went from Very Poor to Average; while window efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 81). Main heating runs on electricity.
At 83 m² the property is well over the postcode median (55 m² across 58 EPCs), placing it in the larger end of the local stock.
Know exactly what you're buying at 21 Prewetts Mill Apartments
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
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Heating controls changed
Hot water system upgraded
Wall insulation upgraded
Floor insulation added or improved
Planning history
21 Prewetts Mill Apartments has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Prewetts Mill Apartments
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
21 Prewetts Mill Apartments has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£321,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in RH12 1ST: £267,300 (2025–2024).
Nearby sales in RH12 1ST
8 Prewetts Mill Apartments, Mill Bay Lane, Horsham, RH12 1ST
Sold Oct 2025
£215,00053 Prewetts Mill Apartments, Mill Bay Lane, Horsham, RH12 1ST
Sold Jun 2025
£285,00046 Prewetts Mill Apartments, Mill Bay Lane, Horsham, RH12 1ST
Sold Jun 2025
£327,50044 Prewetts Mill Apartments, Mill Bay Lane, Horsham, RH12 1ST
Sold Nov 2024
£267,30018 Prewetts Mill Apartments, Mill Bay Lane, Horsham, RH12 1ST
Sold Jul 2024
£210,000
Everything we know about 21 Prewetts Mill Apartments, 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 Mill Bay Lane homes
On co₂ emissions, 21 Prewetts Mill Apartments runs well behind the street norm.
EPC Rating
74 (C)
Street avg 69 (C)
Floor Area
83 m²
Street avg 53 m²
CO₂ Emissions
3.3 t/year
Street avg 1.9 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
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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
0.2 km
Cricketfield Road — bus stop.
Closest school
0.4 km
St Mary's CofE (Aided) Primary School. 15 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
49.7dB
Night-time· 23:00 – 07:00
40.8dB