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About 17b
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
17b is an end-of-terrace house in London (NW5 4DL). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1900-1929 and council tax band D. At 77 m² this is the 7th smallest of 11 units on EPC record in the building, where floor areas span 31–92 m². The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (77 versus a worst of 61). The latest certificate (October 2025) shows a C (score 77), near the top of the C band. When first surveyed in October 2015 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Average, roof efficiency went from Good to Very Good and window efficiency went from Very Poor to Poor; while lighting dropped from Very Good to Good.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 2)
Oct 2025
EPC Rating
A
B
C
C77
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
1.7 t/year
Occupancy
Rented
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
17b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
Current estimate
See how we calculated this£678,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
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The complete analysis of 17b, Gillies Street, London, NW5 4DL
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
Versus other Gillies Street homes
Four headline reads against 11 similar flats on this street, drawn from the latest EPC and Land Registry data.
On epc rating, 17b stands well clear of the street.
EPC Rating
77 (C)
Street avg 67 (D)
Floor Area
77 m²
Street avg 66 m²
CO₂ Emissions
1.7 t/year
Street avg 2.7 t/year
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the London district page.
Rail-style transport is unusually close for this postcode.
Crime
11/mo
Rising year-on-year across the wider district.
Nearest stop
0.4 km
Queens Crescent — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around NW5 4DL from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
53.2dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 97 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 17b, Gillies Street, London, NW5 4DL. Each answer is also embedded as structured data for search engines.