11a, High Street, Seal, Sevenoaks, TN15 0AL
About 11a
11a is a three-bedroom mid-terrace house in Seal, Sevenoaks, Sevenoaks (TN15 0AL). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (August 2019) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in December 2013 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Average to Very Poor. The recommended improvements would push it to C (score 78). Period features are noted in the property record. The home occupies a cul-de-sac position.
At 101 m² the property is well over the postcode median (54 m² across 8 EPCs), placing it in the larger end of the local stock. Most recent transfer: January 2021 at £410,000. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1998–2021, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £474,000 is 15.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£377/sq ft) was about 56.2% above the typical sold price in the postcode.
Know exactly what you're buying at 11a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Open-plan layoutYes
Outside
- Cul-de-sacYes
Building
- Period featuresYes
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
11a has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 11a
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
Sale price has grown by over 3x since 1998.
£474,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 23 years.
£410,000
Growth on file: 5.8% per year over 23 years.
Sales timeline
13 January 2021Most recent
£410,000
+39.9%over 6 years14 September 2014
£293,000
+20.1%over 10 years1 April 2004
£244,000
+22.0%over 1 year27 August 2002
£200,000
+73.9%over 4 years4 June 1998
£115,000
Median price across the last 5 sales in TN15 0AL: £295,000 (2022–2016).
Nearby sales in TN15 0AL
9 High Street, Seal, Sevenoaks, TN15 0AL
Sold Sept 2022
£365,0003 High Street, Seal, Sevenoaks, TN15 0AL
Sold Apr 2022
£295,00015 High Street, Seal, Sevenoaks, TN15 0AL
Sold Jun 2016
£485,00011 High Street, Seal, Sevenoaks, TN15 0AL
Sold Feb 2015
£380,00013 High Street, Seal, Sevenoaks, TN15 0AL
Sold Feb 2008
£255,000
Everything we know about 11a, 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 High Street homes
11a outperforms the street on habitable rooms by a wide margin.
Price per m²
£4,059
Street avg £3,656
Floor Area
101 m²
Street avg 65 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.7 t/year
Street avg 3.9 t/year
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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
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
The Crown — bus stop.
Closest school
0.4 km
Seal Church of England 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
47.9dB

Night-time· 23:00 – 07:00
40.6dB