17a, Penn Road, Islington, London, N7 9RD
About 17a
17a is a one-bedroom semi-detached house in Islington, London, London (N7 9RD). It has a recorded floor area of 78 m² (around 840 sq ft) and construction records dating it to before 1900. At 78 m² this is the 13th smallest of 32 units on EPC record in the building, where floor areas span 38–256 m². The building's EPC ratings span G to C, with this unit at the top. Period features are noted in the property record. The latest certificate (February 2024) shows a C (score 79), near the top of the C band. The rating has held steady at C across 2 certificates since February 2014. Between certificates, lighting went from Average to Very Good.
Held since December 2005 — that's 20 years off the open market, well above the local norm. 2 planning records sit against the property, 1 approved, 0 refused, 1 pending. Past consents include tree works, meaningful when judging how the property has evolved. An active application for tree works is awaiting a decision. At 78 m² it's 25.8% larger than the typical home in the postcode (62 m² median across 49 EPCs). 1 bedrooms is on the smaller side for this postcode, where 4 is the typical count. Today's modelled estimate of £891,000 is 46.1% above the 2005 sale price. On a £-per-square-foot basis, the last sale (£727/sq ft) was about 47.4% above the typical sold price in the postcode.
Know exactly what you're buying at 17a
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
- Bedrooms1
- Bathrooms1
- Dining roomYes
Outside
- Private gardenYes
Building
- Period featuresYes
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Floor insulation added or improved
Planning history
Planning history at 17a is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
- Sept 2021Tree WorksTreesIn report
Rear garden Bay Laurel - Reduce the height by 2.5m. Trim/reduce spread all round to shape
- Documents
- 4 docs on file
- Reference
- P2021/2475/TRE
- May 2015Tree WorksTreesIn report
2 x Sycamore in rear garden. (T1): Raise by removing 4x lowest laterals and thin crown by 20%. (T2): thin crown by 20%
- Reference
- P2015/1884/TRE
We flagged 1 thing worth checking at 17a
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
17a valuation sits well clear of the typical sold price in this postcode.
£891,000
Modelled from EPC, postcode comparables.
£610,000
Recorded with HM Land Registry.
Sales timeline
16 December 2005Most recent
£610,000
Median price across the last 5 sales in N7 9RD: £920,000 (2025–2023).
Nearby sales in N7 9RD
5c, Penn Road, London, N7 9RD
Sold Oct 2025
£900,000Flat B, 9 Penn Road, Islington, London, N7 9RD
Sold Jun 2024
£920,00023 Penn Road, Islington, London, N7 9RD
Sold Dec 2023
£2,350,00013a, Penn Road, Islington, London, N7 9RD
Sold Jan 2023
£750,000Flat B D, 25 Penn Road, Islington, London, N7 9RD
Sold Oct 2022
£575,000
Everything we know about 17a, 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 Penn Road homes
On epc rating, 17a stands well clear of the street.
Price per m²
£7,821
Street avg £8,039
Floor Area
78 m²
Street avg 61 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.6 t/year
Street avg 2.7 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Caledonian Road / Nags Head Holloway — bus stop.
Closest school
0.6 km
Sacred Heart Catholic Primary School. 88 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
57.4dB

Night-time· 23:00 – 07:00
48.4dB