BRICK.
Heol Hir, Llanishen, CF14
CF149BR
£425,000
Key numbers
Comp median
£325,000
+31% vs asking
Est. rent
£1,500/mo
4.2% gross yield
Condition
4/10
Needs work
LTT
£12,375
Running costs
£276/mo
2yr trend
+1.4%
fast liquidity
AI Summary
This three-bedroom detached house in Llanishen is being marketed at £425,000, but comparable sales data places the realistic market value closer to £325,000 — a significant gap that buyers should scrutinise carefully before proceeding. The property requires a full heavy renovation including damp remediation, complete kitchen and bathroom replacement, external render repair, and full internal redecoration, adding materially to the total cost of ownership. While the location in an affluent, low-crime area of Cardiff with good school proximity is genuinely appealing, the asking price appears difficult to justify given the condition, floor area, and comparable evidence available.
Comparable sales - 20 transactions · sector
Median ARV
£325,000
Min
£245,000
Max
£440,000
52 TALYGARN STREET
£280,000
21 OLD CHURCH ROAD
£375,000
11 GLANDWR PLACE
£245,000
341 CAERPHILLY ROAD
£266,000
27 HEOL RHAYADER
£250,000
~£1,500/mo
Based on 17 nearby lettings · range £1,350–£2,000/mo
Gross yield
4.2%
Median
£1,500
pcm
Low
£1,350
pcm
High
£2,000
pcm
£2,000pcm
£1,800pcm
£1,800pcm
£1,755pcm
£1,700pcm
£1,695pcm
£1,650pcm
£1,500pcm
Land Transaction Tax (LTT) · Wales
Purchase price: £425,000 · Effective rate: 2.9%
£12,375
No first-time buyer relief in Wales
Land Transaction Tax is managed by the Welsh Revenue Authority. Higher rates apply to additional properties (BTL, second homes). No first-time buyer relief in Wales.
Due within 14 days of completion. Your solicitor typically handles filing and payment.
Mortgage Brokers
Whole-of-market mortgage broker · Free initial consultation
UK-wide online mortgage broker · Free, whole-of-market
Solicitors & Conveyancers
Online conveyancing · Fixed fees from £595 · No completion, no fee
Verified partners selected for your area. Always compare multiple quotes.
AI photo assessment
Condition
4/10
FairKerb appeal
4/10
Positives from photos
Concerns from photos
Cavity wall, filled cavity
Strip out, structural if needed, everything new
Wall insulation: ~£700.
Transport
Nearby schools
School data from OpenStreetMap. Check Ofsted for official inspection ratings.
Nearby amenities
Deprivation decile 10 of 10 (1 = most deprived, 10 = least deprived). Classified as "Affluent"
Crime - 157 incidents (2026-01)
Crime data from Police UK. Covers incidents reported within approximately 1 mile.
Low coal mining risk
Estimated monthly costs
£276/mo
EPC certificate (heating + hot water + lighting)
Estimated Band C from 58m² floor area
Regional average (Welsh Water)
Estimated UK average
Estimated from 58m² (House)
These are estimates based on averages and EPC data. Actual costs will vary depending on usage, provider, and local authority rates.
Moderate transaction volume in this area.
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BRICK. Property Intelligence
Report prepared 1 April 2026
Data sources
HM Land Registry, EPC Register, Environment Agency, Police UK, OpenStreetMap, planning.data.gov.uk, Coal Authority, SpareRoom, and portal listing data. Market statistics derived from 30M+ recorded transactions.
Important
This report is for informational purposes only and does not constitute financial, legal, or investment advice. Property values, costs, and market data are estimates based on publicly available sources. While we strive for accuracy, we make no warranties about the completeness or reliability of the information. Always conduct your own due diligence and seek independent professional advice before making property decisions. Brickstack Ltd accepts no liability for any loss arising from the use of this report.
BRICK. Property Intelligence
Data: HM Land Registry, EPC Register, Environment Agency, Police UK, OpenStreetMap, planning.data.gov.uk, Coal Authority. Market statistics from 30M+ transactions.
This report is for informational purposes only and does not constitute financial, legal, or investment advice. Property values, costs, and market data are estimates based on publicly available sources. Always conduct your own due diligence and seek independent professional advice before making property decisions. Brickstack Ltd accepts no liability for any loss arising from the use of this report.
9 April 2026 | brickstack.co.uk