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12 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH

2 planning records
Property type
Semi-detached
Habitable rooms
6
From EPC
Floor area
111 m²
1195 sq ft
Energy rating
F
Score 29
Council tax
Band B
Tenure
Owner Occupied
Overview

About 12 Heol Y Deri

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

12 Heol Y Deri is a semi-detached house in Cwmgwili, Llanelli, Llanelli (SA14 6PH). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (October 2016) shows an F (score 29), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 86), a 4-band jump. Main heating runs on oil.

At 111 m² the property is well over the postcode median (84 m² across 18 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.

Before you decide

Everything you need to know about 12 Heol Y Deri

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

Larger development activity nearby
£14.99one-off

30-day 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
Energy

Energy performance

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

12 Heol Y Deri's carbon output runs well above what efficient homes in the postcode produce.

EPC Rating

A
B
C
D
E
F
F29
G
Main Heating
Gas
Main Fuel
Oil
Hot Water
Poor
Windows
Average
CO2 Emissions
10.0 t/year
Occupancy
Owner Occupied
Planning

Planning history

Applications and permits filed against 12 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH, sourced from the PlanIt planning register.
  1. Dec 2012
    ExtensionFull
    In report

    EXTENSION AND ALTERATION TO DISABLED FACILITIES

    Documents
    4 docs on file
    Reference
    E/27330
    View planning record
  2. Jun 2006
    ExtensionFull
    In report

    DEMOLISH EXISTING OUTBUILDINGS, CONSTRUCT BEDROOM/BATHROOM EXTENSION

    Documents
    6 docs on file
    Reference
    E/12945
    View planning record
Before you offer

We flagged 1 thing worth checking at 12 Heol Y Deri

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
£14.99

30-day money-back guarantee

Price

Sales history & valuation

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

12 Heol Y Deri has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£169,000

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 SA14 6PH: £180,000 (2025–2023).

On the street

Versus other Heol Y Deri homes

Four headline reads against 18 similar houses on this street, drawn from the latest EPC and Land Registry data.

12 Heol Y Deri outperforms the street on floor area by a wide margin.

EPC Rating

29 (F)

Street avg 48 (E)

Strongly below

Floor Area

111 m²

Street avg 84 m²

Strongly above

CO₂ Emissions

10.0 t/year

Street avg 5.9 t/year

Strongly below

Habitable Rooms

6 rooms

Street avg 5 rooms

Strongly above
Before you decide

Everything you need to know about 12 Heol Y Deri

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

Larger development activity nearby
£14.99one-off

30-day 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.
£165k

1 Clos Pen Y Waun, Cross Hands

SA14 6SQ

£174k

1 Clos Y Gwendraeth, Gorslas

SA14 6DJ

£175k

1 Clos Y Delfryn, Tumble

SA14 6EN

£175k

1 Craig Y Llety, Upper Tumble

SA14 6BZ

£163k

1 Banc Y Gors, Upper Tumble

SA14 6BR

£179k

1 Bethesda Road, Tumble

SA14 6HY

3 bed1 bath
£180k

1 Clos Erw Werdd, Cross Hands

SA14 6NJ

£156k

1 Danybanc, Pontardulais Road, Cross Hands

SA14 6PB

Area

The neighbourhood at a glance

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

Crime

3/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Cwmgwili Playground — bus stop.

Go deeper on the local area

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

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 12 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH. Each answer is also embedded as structured data for search engines.