20a, Tongdean Lane, Withdean, Brighton, BN1 5JD
About 20a
20a is a four-bedroom semi-detached house in Withdean, Brighton, Brighton (BN1 5JD). It has a recorded floor area of 117 m² (around 1259 sq ft). The latest certificate (May 2016) shows a C (score 77), near the top of the C band. The recommended improvements would push it to B (score 86). The latest certificate is from May 2016, so improvements made since then won't be reflected. Other recorded features include a self-contained annexe. Our model identifies extension potential, subject to local planning policy.
Today's modelled estimate of £701,000 is 12.2% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£496/sq ft) was about 51.6% above the typical sold price in the postcode. Most recent transfer: March 2021 at £625,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- StudyYes
Outside
- ParkingOff street
Building
- Extension potentialPossible
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 May 2026
EPC Rating
Certificate validity
Expired on 16 May 2026
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Planning history
20a has no planning applications on record.
But the area is active
8 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£701,000
Modelled from EPC, postcode comparables.
£625,000
Recorded with HM Land Registry.
Sales timeline
22 March 2021Most recent
£625,000
Median price across the last 5 sales in BN1 5JD: £720,000 (2024–2014).
Nearby sales in BN1 5JD
16a, Tongdean Lane, Withdean, Brighton, BN1 5JD
Sold Dec 2024
£720,00031 Tongdean Lane, Withdean, Brighton, BN1 5JD
Sold Jul 2024
£1,600,00022a, Tongdean Lane, Withdean, Brighton, BN1 5JD
Sold Mar 2020
£725,00029 Tongdean Lane, Withdean, Brighton, BN1 5JD
Sold Jul 2015
£600,00020 Tongdean Lane, Withdean, Brighton, BN1 5JD
Sold Sept 2014
£710,000
Versus other Tongdean Lane homes
Floor Area for 20a lags the street by a wide margin.
Price per m²
£5,342
Street avg £3,988
Floor Area
117 m²
Street avg 164 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
2.9 t/year
Street avg 6.6 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
1110/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Bottom of Valley Drive — bus stop.
Closest school
0.7 km
Westdene Primary School. 28 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
50.6dB

Night-time· 23:00 – 07:00
41.6dB







