17b, King Henrys Road, London, NW3 3QP
About 17b
17b is a mid-terrace house in London (NW3 3QP). It has a recorded floor area of 78 m² (around 840 sq ft) and construction records dating it to 1900-1929. The latest certificate (September 2022) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 8 certificates since October 2008. Between certificates, window efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 69).
Untraded for 21 years, with the last transfer in August 2005. At 78 m² the property is well over the postcode median (59 m² across 45 EPCs), placing it in the larger end of the local stock. Across 2000–2005, sale prices on this property compounded at 40% per year. Today's modelled estimate of £891,000 sits 73% above the 2005 sale of £515,000. On a £-per-square-foot basis, the last sale (£613/sq ft) was about 18.5% below the postcode norm.
Know exactly what you're buying at 17b
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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 controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Wall insulation improved
Hot water efficiency improved
Windows upgraded, improving insulation
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Heating controls changed
Single glazing replaced with double or better glazing
Heating controls upgraded for better temperature management
Window efficiency improved
More low energy lighting installed
Planning history
17b has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
17b has more than quadrupled in price since its earliest registered sale in 2000.
£891,000
Modelled from EPC, postcode comparables and a sale-price growth of 40.0% per year over 5 years.
£515,000
Growth on file: 40.0% per year over 5 years.
Sales timeline
21 August 2005Most recent
£515,000
+523.8%over 5 years13 March 2000
£82,556
Median price across the last 5 sales in NW3 3QP: £740,000 (2025–2022).
Nearby sales in NW3 3QP
Flat 3, 9 King Henrys Road, London, NW3 3QP
Sold Jun 2025
£675,00017d, King Henrys Road, London, NW3 3QP
Sold Mar 2025
£680,000Flat 4, 23 King Henrys Road, London, NW3 3QP
Sold Nov 2024
£740,000Flat 2, 19 King Henrys Road, London, NW3 3QP
Sold Oct 2023
£936,999Flat 3, 23 King Henrys Road, London, NW3 3QP
Sold Jul 2022
£745,500
Everything we know about 17b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other King Henrys Road homes
17b outperforms the street on floor area by a wide margin.
Price per m²
£6,603
Street avg £9,737
Floor Area
78 m²
Street avg 76 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.5 t/year
Street avg 2.9 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Eton Road / Chalk Farm — bus stop.
Closest school
0.3 km
Haverstock School. 71 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
53.9dB
Night-time· 23:00 – 07:00
43.4dB