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17b, Belsize Square, London, NW3 4HT

3 planning records
Property type
Semi-detached
Floor 1st
Habitable rooms
3
From EPC
Floor area
102 m²
1098 sq ft
Energy rating
D
Score 59
Tenure
Private Rental
Overview

About 17b

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

17b is a semi-detached house in London (NW3 4HT). It has a recorded floor area of 102 m² (around 1098 sq ft) and construction records dating it to 1900-1929. The latest certificate (April 2012) shows a D (score 59), a step below the typical UK home. When first surveyed in October 2009 the rating was E, the property has climbed 1 band since. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from April 2012, so improvements made since then won't be reflected. At 102 m² this is the 35th smallest of 52 units on EPC record in the building, where floor areas span 39–211 m². The building's EPC ratings span F to C across 52 units on file.

3 planning records sit against the property, 0 approved, 0 refused.

Before you offer

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.

Already flagged here

Larger development activity nearby
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Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Recommended upgrades on file would lift this property by multiple EPC bands.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 04 Apr 2022

Current Certificate(1 of 2)
Apr 2012

EPC Rating

A
B
C
D
D59
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
4.7 t/year
Occupancy
Rented

Property Improvements

Changes detected from historical EPC data

Apr 2012from Oct 2009
EPC improved fromE42toD59
Planning

Planning history

Applications and permits filed against 17b, Belsize Square, London, NW3 4HT, sourced from the PlanIt planning register.

Planning history at 17b is exclusively tree-management applications — typical for a property with mature trees on or near the plot.

  1. Jul 2020
    Tree WorksTrees
    In report

    REAR GARDEN: 1 x Ash (T1) - Reduce crown by 30%, 2.5m of height and 2m width. 1 x Sycamore (T2) - Reduce crown by 30%, 3m of height and 2m width.

    Documents
    4 docs on file
    Reference
    2020/2417/T
    View planning record
  2. Feb 2004
    Tree WorksTrees
    In report

    REAR GARDEN 1 x Laburnum - fell.

    Documents
    2 docs on file
    Reference
    2004/0289/T
    View planning record
Before you offer

We flagged 1 thing worth checking at 17b

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
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Price

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

£928,000

Modelled from EPC, postcode comparables.

See how we calculated this

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.

Median price across the last 5 sales in NW3 4HT: £1,000,000 (2024–2022).

Before you offer

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.

What we flagged

  • Larger development activity nearby
£14.99
Trusted by UK homebuyers
Preview of the full property report
On the street

Versus other Belsize Square homes

Four headline reads against 71 similar flats on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 17b runs well behind the street norm.

EPC Rating

59 (D)

Street avg 65 (D)

Below

Floor Area

102 m²

Street avg 92 m²

Above

CO₂ Emissions

4.7 t/year

Street avg 3.7 t/year

Below

Habitable Rooms

3 rooms

Street avg 3 rooms

On par
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

6/mo

Rising year-on-year across the wider district.

Nearest stop

0.1 km

Belsize Square — bus stop.

Closest school

0.5 km

Holy Trinity CofE Primary School, NW3. 70 schools nearby.

Go deeper on the local area

The full report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around NW3 4HT from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for NW3 4HT

Daytime· 07:00 – 23:00

53.9dB

Low
Night-time road noise heatmap for NW3 4HT

Night-time· 23:00 – 07:00

42.9dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 17b, Belsize Square, London, NW3 4HT. Each answer is also embedded as structured data for search engines.