Upper Flat, 37 Kelvin Avenue, London, N13 4TH
About Upper Flat
Upper Flat is a mid-terrace house in London (N13 4TH). It has a recorded floor area of 67 m² (around 721 sq ft) and construction records dating it to 1930-1949. The latest certificate (October 2024) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2009. Between certificates, lighting went from Very Poor to Good. The recommended improvements would push it to C (score 79).
It changed hands recently, sold January 2025 for £400,000. Across 1999–2025, sale prices on this property compounded at 6.3% per year. Today's modelled estimate of £441,000 is 10.3% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£555/sq ft) was about 49.2% above the typical sold price in the postcode.
Know exactly what you're buying at Upper Flat
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
More low energy lighting installed
Planning history
Upper Flat has no planning applications on record.
Notable planning nearby
17applications of note in the surrounding area
We flagged 1 thing worth checking at Upper Flat
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.
- Signs of HMO activity in the area
30-day money-back guarantee
Sales history & valuation
Price for Upper Flat has grown more than fourfold since the 1999 starting point.
£441,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 26 years.
£400,000
Growth on file: 6.3% per year over 26 years.
Sales timeline
6 January 2025Most recent
£400,000
+384.8%over 25 years29 January 1999
£82,500
Median price across the last 5 sales in N13 4TH: £610,000 (2025–2022).
Nearby sales in N13 4TH
23 Kelvin Avenue, Enfield, London, N13 4TH
Sold Jul 2025
£742,17767 Kelvin Avenue, Enfield, London, N13 4TH
Sold Nov 2024
£520,00035 Kelvin Avenue, Enfield, London, N13 4TH
Sold Aug 2022
£435,00031 Kelvin Avenue, Enfield, London, N13 4TH
Sold May 2022
£665,00057b, Kelvin Avenue, London, N13 4TH
Sold Aug 2021
£149,120
Everything we know about Upper Flat, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other Kelvin Avenue homes
Years Held for Upper Flat lags the street by a wide margin.
Price per m²
£5,970
Street avg £4,784
Floor Area
67 m²
Street avg 50 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
2.6 t/year
Street avg 2.4 t/year
Similar properties nearby
2a, Flat 6, Spencer Avenue
N13 4TR
2a, Flat 4, Spencer Avenue
N13 4TR
1a, Flat 1, Aldermans Hill, Enfield
N13 4YD
122a, Flat 5, Aldermans Hill
N13 4PT
2a, Flat 2, Spencer Avenue
N13 4TR
122a, Flat 3, Aldermans Hill
N13 4PT
2a, Flat 5, Spencer Avenue
N13 4TR
1a, Flat 3, Aldermans Hill, Enfield
N13 4YD
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Tottenhall Rd/ Nth Circular Rd — bus stop.
Closest school
0.4 km
Tottenhall Infant School. 57 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
54.1dB

Night-time· 23:00 – 07:00
44.4dB