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21 Elm House, Thomas Blake Avenue, Southampton, SO14 5DJ

Property type
Mid terrace
Floor 3
Floor area
73 m²
786 sq ft
Energy rating
C
Score 77
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Overview

About 21 Elm House

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

21 Elm House is a mid-terrace house in Southampton (SO14 5DJ). It has a recorded floor area of 73 m² (around 786 sq ft). At 73 m² this is the 21st smallest of 24 units on EPC record in the building, where floor areas span 48–73 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (November 2020) shows a C (score 77), near the top of the C band. Main heating runs on electricity: electricity, unspecified tariff.

At 73 m² it's 17.7% larger than the typical home in the postcode (62 m² median across 24 EPCs). Across 2021–2021, sale prices on this property compounded at 71.8% per year. Today's modelled estimate of £177,000 is 37.5% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£164/sq ft) was about 52.8% above the typical sold price in the postcode. Sold February 2021 for £128,750. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about 21 Elm House

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

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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.

21 Elm House's carbon output is low for the local stock.

Current Certificate
Nov 2020

EPC Rating

A
B
C
C77
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Electric
Hot Water
Poor
Windows
Very Good
CO2 Emissions
0.6 t/year
Occupancy
—

Certificate validity

Valid until 12 November 2030

4 years remaining
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

3rd Floor FlatEPC 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 21 Elm House, Thomas Blake Avenue, Southampton, SO14 5DJ, sourced from the PlanIt planning register.

21 Elm House has no planning applications on record.

1

But the area is active

1 notable application 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.

21 Elm House changed hands twice within eighteen months — unusual for the area.

Current estimate

£177,000

Modelled from EPC, postcode comparables and a sale-price growth of 71.8% per year over 1 year.

See how we calculated this
Last sold (2021)

£128,750

Growth on file: 71.8% per year over 1 year.

Sales timeline

  1. 17 February 2021Most recent

    £128,750

    +71.8%

  2. 8 February 2021

    £74,931

Median price across the last 5 sales in SO14 5DJ: £123,750 (2025–2024).

On the street

Versus other Thomas Blake Avenue homes

Four headline reads against 24 similar flats on this street, drawn from the latest EPC and Land Registry data.

21 Elm House outperforms the street on floor area by a wide margin.

Price per m²

£1,764

Street avg £1,474

Above

Floor Area

73 m²

Street avg 61 m²

Strongly above

CO₂ Emissions

0.6 t/year

Street avg 0.2 t/year

Strongly below

Years Held

5 years

Street avg 5 years

On par
Before you decide

Everything you need to know about 21 Elm House

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

Pick your report · from £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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£175k

10 Riverside Quay, Thomas Blake Avenue

SO14 5DH

£174k

10 Chantry House, Albert Road North

SO14 5BU

1 bed1 bath
£170k

1 Hilda Place, Kent Street

SO14 5SP

2 bed1 bath
£169k

10 Trinity Court, Old Mill Lane

SO14 5BW

£188k

1 Deanery Court, Thomas Blake Avenue

SO14 5BX

£190k

10 Riverside House, Thomas Blake Avenue

SO14 5BZ

1 bed1 bath
£161k

10 Deanery Court, Thomas Blake Avenue

SO14 5BX

£202k

10 Elm Quay, Thomas Blake Avenue

SO14 5DL

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.
Full Southampton report

Rail-style transport is unusually close for this postcode.

Crime

413/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Anglesea Terrace — bus stop.

Closest school

0.6 km

Hope Community School Southampton. 29 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 SO14 5DJ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SO14 5DJ

Daytime· 07:00 – 23:00

51.8dB

Low
Night-time road noise heatmap for SO14 5DJ

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 21 Elm House, Thomas Blake Avenue, Southampton, SO14 5DJ. Each answer is also embedded as structured data for search engines.