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23 Colby Street, Southampton, SO16 9RT

Property type
Semi-detached
Floor 02
Bedrooms
2
Bathroom
1
Floor area
62 m²
667 sq ft
Energy rating
C
Score 77
Tenure
Freehold
Overview

About 23 Colby Street

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

23 Colby Street is a two-bedroom semi-detached house in Southampton (SO16 9RT). It has a recorded floor area of 62 m² (around 667 sq ft) and construction records dating it to 2012-2021. Tenure is freehold. At 62 m² this is the 26th smallest of 67 units on EPC record in the building, where floor areas span 38–120 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (August 2025) shows a C (score 77), near the top of the C band. Earlier certificates rated it B (December 2014); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average.

On the market in March 2017 and unlisted since — roughly 9 years. Across 2014–2017, sale prices on this property compounded at 3.3% per year. Today's modelled estimate of £198,000 is 13.8% above the 2017 sale price.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms2
  • Bathrooms1

Outside

  • ParkingAllocated

Building

  • TenureFreehold
  • RefurbishedYes
Before you decide

Everything you need to know about 23 Colby Street

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

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

23 Colby Street's carbon output is low for the local stock.

Current Certificate(1 of 2)
Aug 2025

EPC Rating

A
B
C
C77
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
1.1 t/year
Occupancy
Rented
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

21st century2nd Floor FlatFreeholdEPC C

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £495 · Includes VAT

Planning

Planning history

Applications and permits filed against 23 Colby Street, Southampton, SO16 9RT, sourced from the PlanIt planning register.

23 Colby Street has no planning applications on record.

3

But the area is active

3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Current estimate

£198,000

Modelled from EPC, postcode comparables and a sale-price growth of 3.3% per year over 2 years.

See how we calculated this
Last sold (2017)

£174,000

Growth on file: 3.3% per year over 2 years.

Sales timeline

  1. 3 March 2017Most recent

    £174,000

    +7.4%over 2 years
  2. 11 December 2014

    £162,000

Median price across the last 5 sales in SO16 9RT: £155,000 (2023–2022).

On the street

Versus other Colby Street homes

Four headline reads against 50 similar flats on this street, drawn from the latest EPC and Land Registry data.

23 Colby Street is notably below the street on epc rating.

Price per m²

£2,806

Street avg £2,865

On par

Floor Area

62 m²

Street avg 60 m²

On par

Habitable Rooms

3 rooms

Street avg 3 rooms

Above

CO₂ Emissions

1.1 t/year

Street avg 1.0 t/year

Below
Before you decide

Everything you need to know about 23 Colby Street

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Southampton district page.

Crime

9/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Green Lane — bus stop.

Closest school

0.3 km

Oasis Academy Lord's Hill. 27 schools nearby.

Go deeper on the local area

A Local Area 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 SO16 9RT from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SO16 9RT

Daytime· 07:00 – 23:00

52.5dB

Low
Night-time road noise heatmap for SO16 9RT

Night-time· 23:00 – 07:00

42.6dB

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 23 Colby Street, Southampton, SO16 9RT. Each answer is also embedded as structured data for search engines.