12a, Grand Avenue, Hassocks, BN6 8DA
About 12a
12a is a two-bedroom detached house in Hassocks (BN6 8DA). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1930-1949 and council tax band D. Tenure is freehold. The latest certificate (March 2020) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in September 2009 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good and main heating went from Average to Good; while wall efficiency dropped from Good to Average and lighting dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 2-band jump. Other recorded features include a conservatory. Our model identifies extension potential, subject to local planning policy.
Most recent transfer was October 2025 at £420,000 — fresh data. Across 1996–2025, sale prices on this property compounded at 6.4% per year. On a £-per-square-foot basis, the last sale (£582/sq ft) was about 89.1% above the typical sold price in the postcode. At 67 m² it's 28.7% smaller than the typical home in the postcode (94 m² median across 16 EPCs). One historical planning record sits against the property in 2026.
Know exactly what you're buying at 12a
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
- Bedrooms2
- Bathrooms1
- ConservatoryYes
Outside
- Private gardenYes
- GarageYes
Building
- TenureFreehold
- Central heatingYes
- RefurbishedYes
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Planning history
- Apr 2026PorchFullIn report
Extension: Part single, part two storey · Side of property
Demolition of existing porch and conservatory. Proposed part two storey and part single storey side extension, new porch to front elevation and new roof over existing flat roof garage.
Extension- Documents
- 20 docs on file
- Reference
- DM/25/3264
We flagged 1 thing worth checking at 12a
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
Price for 12a has grown more than fourfold since the 1996 starting point.
£450,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 29 years.
£420,000
Growth on file: 6.4% per year over 29 years.
Sales timeline
19 October 2025Most recent
£420,000
+86.7%over 19 years14 December 2005
£225,000
+226.1%over 9 years11 August 1996
£69,000
Median price across the last 5 sales in BN6 8DA: £530,000 (2025–2023).
Nearby sales in BN6 8DA
Everything we know about 12a, 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 Grand Avenue homes
On habitable rooms, 12a runs well behind the street norm.
Price per m²
£6,269
Street avg £4,887
Floor Area
67 m²
Street avg 97 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
3.0 t/year
Street avg 3.9 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Spitalford Bridge — bus stop.
Closest school
0.1 km
Hassocks Infant School. 6 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
47.9dB

Night-time· 23:00 – 07:00
38.5dB