18 High Street, Llanelli, SA15 2RE
About 18 High Street
18 High Street is a mid-terrace house in Llanelli (SA15 2RE). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (January 2024) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 82), a 3-band jump.
Across 2000–2025, sale prices on this property compounded at 5% per year. Today's modelled estimate of £132,000 sits 80.8% above the 2025 sale of £73,000. Most recent transfer was March 2025 at £73,000 — fresh data. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs).
Know exactly what you're buying at 18 High Street
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
Energy performance
18 High Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
18 High Street has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 2 things worth checking at 18 High Street
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
- Recent ownership pattern worth a look
30-day money-back guarantee
Sales history & valuation
Sale price has grown by over 3x since 2000.
£132,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 25 years.
£73,000
Growth on file: 5.0% per year over 25 years.
Sales timeline
5 March 2025Most recent
£73,000
+62.2%7 October 2024
£45,000
+104.5%over 24 years22 June 2000
£22,000
Median price across the last 5 sales in SA15 2RE: £136,000 (2024–2022).
Everything we know about 18 High Street, 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
- Recent ownership pattern worth a look

Versus other High Street homes
On years held, 18 High Street runs well behind the street norm.
Price per m²
£849
Street avg £1,049
Floor Area
86 m²
Street avg 93 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
6.3 t/year
Street avg 4.7 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
High Street — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.