Housebuilding Companies in Cardiff: 486 Active Firms (2026)
Housebuilding companies in Cardiff develop, construct and sell new residential properties across the city and surrounding metropolitan area.
Buying centres sit around land and planning, construction delivery, and sales into private-buyer or housing-association channels. Local builders tend to compete through site access, consent management and subcontractor networks, while regional operators add finance, procurement and a more formal residential sales function. Engagements are project-based rather than repeat service contracts: a plot or small site can tie up capital, trades and buyer demand from acquisition through completion. Mixed-tenure schemes pull the model towards housing-association relationships and closer planning coordination, not just open-market sales.
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Cardiff has 486 actively trading housebuilding companies, a sizeable local cohort for a city market where site availability and planning work shape capacity. The employment footprint is small in company terms: the cohort reports 497 employees, consistent with project managers using subcontracted trades rather than large payrolls. Scale is concentrated in a thin upper band, with 6 companies reporting turnover above £5M. Formation has not stopped either, with 133 firms incorporated since 2022, although many of these are likely to remain specialist operators until they secure land and delivery finance.
Planning consent is the gating item for Cardiff-area operators, because the commercial model depends on converting land control into saleable residential units before finance and subcontractor commitments become too exposed. Building-control approval, warranty provision, site safety and buyer-facing disclosure sit alongside that planning work. Where housing associations are involved, procurement discipline and specification control tend to be tighter than in pure private-sale schemes. Market structure therefore favours firms that can manage local consent risk, staged construction cash flow and after-sales obligations, even when the actual build is delivered through subcontracted trades.
Future movement appears more likely to come from selective land positions and mixed-tenure delivery than from a broad shift in business models. The cohort looks weighted towards small, project-led builders, so access to finance, planning capacity and subcontractor availability may decide which operators move beyond occasional schemes. Housing-association demand can soften sales risk, but it also tends to narrow margins and raise delivery scrutiny. Consolidation may occur around firms with repeatable planning and site-management capability, while many newer entrants are likely to remain asset-light, dormant between projects, or dependent on project-by-project cycles.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
486
Active firms
2026
6
£5M+ firms
Reported revenue
133
Recent incorporations
Since 2022
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Key facts
About 1% of the trading cohort reports turnover above £5M (6 of 486 firms) — the rest sits below that revenue band.
27% of the cohort was incorporated since 2022 (133 firms), so a sizeable share is in its first few filing cycles.
Cardiff housebuilders sit between land acquisition, planning consent, construction delivery and sales risk.
Project-vehicle structures appear common in residential development, with delivery often separated from land ownership and sales.
Suppliers tend to sell into both developer clients and contractor-builders, so procurement can run through land teams, site managers or finance functions.
Planning, building-control and warranty requirements shape deal timing before homes reach buyers.
Top Cardiff Housebuilding companies
Financial sub-scores
Computed from 3 filingsDevelops residential properties including new‑build houses and apartment developments. Also carries out home renovations and extensions, remodelling existing properties and delivering multi‑unit…
Serves homebuyers, first-time buyers, downsizers and growing families across Cardiff and South Wales, alongside businesses, landowners and council bodies seeking residential property development or…
Financial Health
WeakWeak · 0% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsDevelops a residential housing scheme comprising low‑carbon houses and apartments for sale and rent. Manages development phases, property marketing, and buyer or tenant registrations for homes within…
Serves private homebuyers and residential tenants seeking 1, 2 and 3 bedroom low-carbon houses and apartments in Tonyrefail, with access to Cardiff and South Wales.
Financial Health
WeakWeak · -23% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsDelivers residential construction and development projects using modern methods of construction (MMC). Works with partners from feasibility to completion to build energy‑efficient homes, including…
Serves housing associations, property developers, architects and local authority partners involved in residential, affordable housing and mixed-use schemes, with project references in South Wales.
Financial Health
WeakWeak
Location
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Financial sub-scores
Computed from 5 filingsProvides construction and property development services, delivering residential building projects including new apartment blocks, housing developments and refurbishment of existing buildings into…
Serves public-sector and residential property clients, including local authorities and development partners, seeking housing-led construction, redevelopment and fire remediation projects for local…
Financial Health
StableStable · -10% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides residential building services including construction of bespoke new homes, property extensions, and small housing developments. Manages projects from architectural planning and design…
Serves private residential clients and homeowners in South Wales, including people commissioning bespoke new homes, home extensions, and buyers of small detached housing developments.
Financial Health
StableStable · -18% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProperty investment and development company that sources, funds, and manages residential and commercial property developments. Works with private investors and banks, oversees construction projects,…
Targets private investors and private banks seeking property-backed development investments, alongside buyers, tenants and landlords involved in residential, commercial and hotel property sales and…
Financial Health
StrongStrong · 108% CAGR over 3y
Location
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Financial sub-scores
Computed from 5 filingsDevelops and markets residential properties at the Woodside Court housing development, offering newly built homes designed for modern living with energy‑efficient construction and bespoke layouts,…
Targets affluent homebuyers and property investors seeking luxury, sustainable executive homes, including buyers prioritising modern design, energy efficiency and community living.
Financial Health
HealthyHealthy
Location
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Financial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsFinancial Health
StableStable · Hiring · 16% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -64% CAGR over 5y
Location
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Computed from 5 filingsFinancial Health
DistressedDistressed
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Computed from 3 filingsFinancial Health
StableStable · 0% CAGR over 2y
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Computed from 5 filingsFinancial Health
StableStable · -73% CAGR over 4y
Location
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Computed from 5 filingsProvides building and construction services including new build projects, refurbishment, renovation and adaptation works. Delivers design-and-build contracts with an in-house design team and operates…
Serves public sector bodies and private clients requiring building projects, with customers shown across South Wales towns including Merthyr, Pontypool, Tonypandy, Caldicot, Ebbw Vale and Blaenavon.
Financial Health
StableStable · Hiring · 6% CAGR over 4y
Location
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Provides construction and building contracting services including commercial design and build projects, new build housing, refurbishment works, heritage property restoration, and integration of solar…
Serves commercial property clients, housing developers and associations, heritage property owners, and organisations commissioning new-build, refurbishment or solar construction projects.
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 3 filingsDesigns and constructs modular housing using offsite factory manufacturing methods. Delivers residential building projects and runs training and social programmes, including construction skills…
Financial Health
StrongStrong · Growing, Hiring · 330% CAGR over 2y
Location
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Develops residential, hotel and mixed‑use property projects. Activities include planning and construction of luxury homes and apartments, town centre redevelopments, conference hotels, marinas and…
Targets property investors and development partners, alongside hotel/leisure brands and residential buyers interested in UK homes, apartments, town-centre schemes and hospitality assets.
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
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Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
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Computed from 5 filingsFinancial Health
DistressedDistressed
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Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
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Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
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Computed from 4 filingsFinancial Health
StableStable · 0% CAGR over 3y
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Financial Health
N/AN/A
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Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
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Computed from 5 filingsFinancial Health
WeakWeak
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Computed from 4 filingsFinancial Health
StableStable · 0% CAGR over 5y
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Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
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Computed from 4 filingsFinancial Health
StrongStrong · Growing, Hiring · 14% CAGR over 3y
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Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
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Computed from 5 filingsFinancial Health
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Computed from 4 filingsFinancial Health
StrongStrong
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Computed from 2 filingsFinancial Health
StrongStrong · Hiring · 100% CAGR over 1y
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Computed from 5 filingsFinancial Health
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Computed from 2 filingsFinancial Health
StableStable · 0% CAGR over 1y
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Computed from 5 filingsFinancial Health
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Financial sub-scores
Computed from 5 filingsDevelops residential housing schemes, building small to mid‑scale developments of new homes and managing construction through in‑house teams. Also involved in building, owning and refurbishing…
Sells to private homebuyers seeking new-build houses in small bespoke and larger residential developments, primarily in South Wales and selected UK locations as sites are developed.
Financial Health
StableStable · Hiring · 11% CAGR over 4y
Location
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Computed from 5 filingsProperty development company involved in the construction and sale of new-build residential housing. Developed a housing scheme of two, three and four-bedroom homes marketed to buyers as part of a…
Sells to private homebuyers, including families and commuters, seeking 2, 3 and 4 bedroom new-build homes in South Wales locations near local schools, amenities and transport links.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 4 filingsDevelops residential property projects, building small developments of new-build detached houses and marketing the completed homes for sale through estate agents to private buyers and investors.
Targets private residential buyers, including families and owner-occupiers, seeking new-build detached houses in Caerphilly near local amenities and transport links.
Financial Health
StableStable
Location
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Computed from 5 filingsDevelops residential housing projects, including construction and sale of new-build family homes. Acquires land, designs and builds energy‑efficient properties, and markets completed houses to buyers.
Sells to private homebuyers and families seeking new-build, energy-efficient luxury houses in South Wales, particularly around Merthyr Tydfil.
Financial Health
WeakWeak
Location
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Property developer that acquires land, renovates properties, and builds new residential housing developments. Designs and constructs energy‑efficient houses, including multi‑bedroom family homes, and…
Sells to private homebuyers and families seeking high-end, energy-efficient new-build homes in South Wales, with developments aimed at purchasers of large family houses.
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N/AN/A
Location
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Computed from 5 filingsFinancial Health
StableStable · Hiring · 7% CAGR over 4y
Location
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Computed from 4 filingsProperty developer and housebuilder delivering new residential developments. Designs and constructs one- to four-bedroom houses and bungalows, including semi‑detached and detached homes, and sells…
Serves young families, individuals and homebuyers seeking affordable 1–4 bedroom houses and bungalows in residential developments in Wales.
Financial Health
HealthyHealthy · 0% CAGR over 3y
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Computed from 3 filingsDevelops and sells new-build residential properties through planned housing developments. Offers homes for purchase to private buyers, including options to customise interior finishes, and manages…
Sells to private home buyers, including first-time buyers and families, looking for new-build homes in South Wales areas such as Aberdare, Merthyr Tydfil and nearby communities.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
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Computed from 3 filingsDevelops and builds residential housing developments, constructing and selling new‑build homes including two‑ to four‑bedroom properties. Also provides homebuyer support such as assisted sale…
Sells to private homebuyers in South Wales, including first-time buyers, families seeking 2-4 bedroom homes, and existing homeowners using assisted sale or Help to Buy Wales schemes.
Financial Health
StableStable · -4% CAGR over 2y
Location
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Computed from 3 filingsProvides construction and property development services including new-build housing, groundworks, refurbishment and restoration of heritage buildings. Manages projects from planning and design…
Serves housing providers, commercial clients, public sector bodies, architects and design teams across Wales involved in residential, commercial, heritage and community development projects.
Financial Health
HealthyHealthy · Growing · 2% CAGR over 2y
Location
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Computed from 3 filingsProvides building contracting services including new builds, extensions, alterations and refurbishment projects for public and private sector clients such as education, commercial and residential.…
Serves public sector bodies, local authorities, universities, health authorities and housing associations, plus regular private sector clients, architects, building surveyors, homebuyers and…
Financial Health
WeakWeak · -91% CAGR over 2y
Location
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How Cardiff Housebuilding companies work and how to sell to them
What they do
Cardiff housebuilders earn revenue by turning controlled land into completed homes, usually through private sales, forward sales to housing associations, or mixed-tenure arrangements that combine the two. Income is lumpy rather than subscription-like: cash arrives around reservations, completions and contracted milestones, while land, planning, professional fees and build costs sit upfront. Most firms sell a physical asset but operate as project managers, coordinating architects, surveyors, planners, lenders, warranty providers and subcontracted trades. Pricing is set at scheme level, with margin shaped by land cost, planning obligations, build inflation and the timing of sales against finance drawdowns.
Who they sell to
Most local operators sell finished homes to private buyers, often through estate agents and site-based sales activity, while mixed-tenure developers also negotiate with housing associations and public-sector-linked delivery partners. Buyer-side decision makers vary: private sales involve households, mortgage advisers and conveyancers; affordable or mixed-tenure work brings in development directors, asset teams, procurement leads and technical reviewers. Sales cycles tend to run with the construction programme rather than a conventional quarterly pipeline. Housing-association channels usually involve longer qualification, specification and legal review, while open-market sales depend more on reservation rates, local demand and mortgage availability.
What they buy
Most Cardiff housebuilding firms tend to spend on services and systems that reduce site risk, shorten admin cycles or support sales. Common purchases include planning consultancy, architectural design, quantity surveying, project accounting, legal conveyancing, health and safety support, warranty administration, site insurance, finance brokerage, payroll and subcontractor management. Larger operators may also buy CRM, document control, procurement software, buyer care systems, marketing support, cyber security and management reporting. Field tools that help site managers evidence progress, defects, inspections and contractor attendance can be relevant where the buyer still runs a lean office but carries delivery risk across several live projects.
Why and how to sell to them
Housebuilding buyers tend to evaluate suppliers when a site is acquired, planning consent is nearing approval, finance is being arranged, a scheme moves into construction, or sales rates start to affect cash flow. Leadership changes and a shift from one-off projects to repeat delivery can also open budgets for finance control, buyer communication and contractor oversight. Outreach usually works better when tied to a scheme event rather than a generic efficiency claim. Useful angles include reducing planning slippage, making lender and warranty reporting easier, improving subcontractor visibility, protecting margin against cost movement, or helping sales and aftercare teams manage buyers without adding permanent headcount.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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Frequently asked questions
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