Canterbury & Kent

Kent New-Build Costs November 2026: Taxes and Regulation Make Up 42% of a Home Counties New-Build Price, Says CPS

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Government-imposed costs account for 42% of the minimum viable selling price of a new three-bed house on a greenfield site in the Home Counties, according to a Centre for Policy Studies (CPS) report published on 10 November 2026 [1][2]. The think tank’s model puts that viable price at around £535,000, against roughly £311,000 if the same scheme carried none of those costs. For anyone weighing up Kent new-build costs in November 2026, the report helps explain why a new home in Canterbury, Whitstable or Herne Bay is priced the way it is, and why an independent survey and valuation still earn their keep on a brand-new property.

Key Takeaways

• The CPS report “Easing the Burdens” models two schemes: 100 brownfield flats in inner London (57% government-imposed costs) and 100 greenfield houses in Chelmsford (42%) [1][2].
• The Home Counties gap is £224,000 per house: a viable price of about £535,000 versus about £311,000 without the modelled costs [1][3].
• The figures are outputs of a model, not sales data, and rest on two developments. Critics may read the assumptions differently [2][3].
• Canterbury’s final Local Plan targets around 1,215 homes a year and 30% affordable housing on greenfield sites, so the same cost pressures apply locally [4][5].
• Housebuilders expect the Your First Home equity loan scheme to delay new-build sales until spring 2027 [6].

What the CPS Report Says About Kent New-Build Costs November 2026

The report, co-authored by Edward Donovan and Ben Hopkinson, CPS head of housing and infrastructure, counts every cost a developer carries because a rule requires it, then asks what price each home must achieve for the scheme to be worth building [1][2].

For the inner London model, 100 two-bed flats of 700 sq ft on a brownfield site, the answer is about £775,000 per flat. Strip out the government-imposed costs and the figure falls to about £333,000, a difference of £442,000 [1]. For the Home Counties model, 100 three-bed houses on a greenfield site in Chelmsford, the viable price is about £535,000 against about £311,000 without those costs, a gap of £224,000 [1][3].

The costs counted include affordable housing obligations, planning delays, stamp duty, corporation tax, the Residential Property Developer Tax, the Community Infrastructure Levy (CIL), Biodiversity Net Gain and mandated building specifications such as balconies, dual-aspect layouts and second staircases [1][2].

“If it wants more homes it must make them more attractive to build.”, Edward Donovan, co-author, Centre for Policy Studies [1]

Hopkinson said recent governments were right to focus on planning reform, but that without addressing regulation and taxation the country “will continue to be millions of homes short of where it needs to be” [1]. Shadow housing secretary Katie Lam backed the findings [1][3].

The caveats that matter

The figures come from a model the authors built, not from real transactions [2]. The £333,000 and £311,000 prices are theoretical, assuming supply rises until prices fall to that level [3]. The conclusions rest on two modelled developments, not a national assessment [1][3]. The CPS is a centre-right think tank with a stated policy view, and other economists and housing bodies may weigh the inputs differently. The 42% figure is one organisation’s estimate, not a settled fact.

The Cost Stack Inside a Home Counties New-Build Price

The table sets out the modelled Home Counties scheme and the categories the CPS says push the price up [1][2].

Item in the CPS Home Counties model	Detail
Scheme type	100 three-bed houses, greenfield, Chelmsford
Viable price with government-imposed costs	c. £535,000
Price without those costs (theoretical)	c. £311,000
Difference per home	c. £224,000 (c. 42%)
Affordable housing	Share of homes delivered below market value
Taxes	Stamp duty, corporation tax, Residential Property Developer Tax
Levies	Community Infrastructure Levy
Environmental rules	Biodiversity Net Gain
Planning	Delay and holding costs while consent is sought
Build specification	Mandated additions (some apply only in London)

Some requirements, such as second staircases, are London rules, and the CPS says the London and non-London figures are not directly comparable [2]. For Kent, the greenfield model is the closer fit, but Chelmsford is not Canterbury and no figure in the report describes a Kent site.

Why Kent New-Build Costs Matter in Canterbury, Whitstable and Herne Bay

The council’s final draft Local Plan, reported by KentOnline in February 2026, targets 1,215 homes a year, or more than 23,000 by 2042/43, with at least 2,329 affordable-rent homes and 30% affordable housing on greenfield sites [4]. The council’s own 2025 timetable note put the national figure at 1,216 a year, up from 1,149, so the two sources differ by one home [5].

Full council approved the Regulation 19 version on 18 March 2026 and the consultation closed on 18 May. The council expected to submit the plan to the Secretary of State for examination from September 2026, with a planning inspector then appointed [7].

The next decade of new homes around Canterbury, Herne Bay and Whitstable will therefore be delivered on sites carrying the kind of obligations the CPS counted: a 30% affordable requirement on greenfield land, Biodiversity Net Gain, infrastructure contributions and planning timescales. Whether one sees these costs as too high or as the price of fair development, they land somewhere. A buyer of an open-market new-build house in the district pays a price set, in part, to carry them.

Why new-build premiums exist

A new three-bed house is often priced above a similar second-hand home nearby. Part of that is genuine value: new fittings, warranties, energy performance and no chain. Part of it, if the CPS model is right, is the cost stack above. The developer needs a certain price per plot to make the scheme viable, and that price does not fall because a comparable 1990s house down the road sold for less. The asking price reflects what the scheme needs; an independent valuation reflects what the home is worth on the day against resale comparables. The two numbers are not always the same.

Viability Decides What Gets Built, and What Gets Cut

When a scheme’s numbers are tight, developers can negotiate down the affordable share through a viability assessment, phase the build, or trim the specification of the open-market homes. The CPS treats mandated specification as a cost; for a buyer, the risk runs the other way. Where rules do not require a feature, it may be the first thing to go.

Typical pressure points include finish and fit-out specified to a budget; external works such as driveways and drainage left to the end of a phase; and workmanship under time pressure at roofing details, cavity trays and insulation, which is hard to see once a home is decorated.

None of this means a new home in Kent will be poorly built. It means the buyer should not assume it has been independently checked on their behalf. Building control sign-off and a warranty inspection are not a snagging survey carried out for the purchaser.

The Your First Home Scheme and the Timing Question

The Negotiator reported on 10 November 2026 that Gleeson Homes expects the government’s Your First Home scheme to “postpone demand” and increase cancellations ahead of its launch [6]. The scheme offers a 20% equity loan on new-build homes, with a deposit between 2.5% and 15%, interest-free for five years. Pre-registration opens by the end of December 2026, full applications from February 2027 and the first loans from April 2027 [6].

“In far too many cases, it simply isn’t financially viable to build the homes that we need.”, Katie Lam, shadow housing secretary, quoted in Property Industry Eye [1]

Bellway chief executive Jason Honeyman described the likely boost as “modest” and said it would not “supercharge housebuilding” [6].

For a Kent buyer this cuts two ways. A first-time buyer who can wait may prefer to pre-register and buy in spring 2027 with the equity loan. A buyer who does not need the scheme may find developers more willing to negotiate on price, incentives or upgrades while reservations are slow. Either way, the home should be independently inspected and valued before exchange, not after.

Why an Independent Survey and Valuation Pay Off on a New Build

The CPS report describes a system in which the margin on each home is tightly managed. That is the environment in which an independent check is worth having.

A snagging inspection is a visual survey of a completed, or nearly completed, new home by a surveyor acting for the buyer. It records defects and unfinished items room by room and outside, so the developer can put them right before completion. An independent RICS-regulated surveyor will also look at items a buyer cannot easily judge, such as roof coverings, flashings, loft insulation and ventilation.

A mortgage valuation is carried out for the lender and is often brief. An independent RICS valuation is carried out for the buyer and tests the developer’s price against local resale evidence, the incentives on offer and the likely value once the home is no longer “new”. Where the asking price is driven by what the scheme needs to achieve, that second opinion can be the difference between a sound purchase and negative equity on an early resale.

What Kent Buyers Should Do Now

1. Check the site’s planning position. Planning documents show the affordable housing share, CIL or Section 106 contributions, phasing conditions and whether the site is a Local Plan allocation [4][7].
2. Ask what the price includes. Incentives such as paid stamp duty or upgraded kitchens can inflate the headline figure. Tell the valuer about them.
3. Decide whether Your First Home changes the timing. First-time buyers should check eligibility and the pre-registration timetable before reserving a home that completes before April 2027 [6].
4. Book a snagging inspection before legal completion, so defects are recorded while the developer has the strongest incentive to fix them.
5. Commission an independent valuation, especially where the price sits above resale comparables in the same postcode or a large incentive package is attached.

FAQ

Does the CPS report mean new-build prices in Kent will fall?

No. The report models what prices need to be for a scheme to be viable under current rules, and what they could theoretically be without those costs [1][2]. It does not forecast a price change.

Is the 42% figure a Kent number?

No. It comes from a modelled 100-house greenfield scheme in Chelmsford, Essex [1][3]. Kent greenfield sites face a broadly similar set of obligations, including Canterbury’s 30% affordable requirement on greenfield land [4], but the report contains no Kent-specific figure, and the result would differ by site.

Is a snagging survey necessary if the home has a ten-year warranty?

A warranty covers specified structural defects; it does not identify defects for the buyer. A snagging inspection by an independent RICS-regulated surveyor records them while they are easiest to resolve.

Conclusion

The CPS report puts a number, 42%, on something new-build buyers in Kent have long sensed: a new home on a greenfield site carries a heavy load of obligations and taxes, whatever one thinks of their merits [1][2]. The figure is a model, not a measurement, and Chelmsford is not Canterbury, but the mechanism is the one shaping sites across the district as the Local Plan heads for examination [4][7]. Add the uncertainty around Your First Home [6], and the case for an independent check grows stronger.

Buyers looking at a new home in Canterbury, Whitstable, Herne Bay or wider east Kent should treat the developer’s price as a starting point, not a verdict. A snagging inspection and an independent valuation from an RICS-regulated surveyor give a buyer their own evidence before exchange. Canterbury Surveyors can arrange both across the district; getting in touch before a reservation is placed gives the surveyor the best chance to help.

References

1. Marc da Silva, “Housebuilding crisis deepens as government rules push up development costs”, Property Industry Eye, 10 November 2026. propertyindustryeye.com.
2. Edward Donovan and Ben Hopkinson, “Easing the Burdens: How Government Policy Blocks Homes”, Centre for Policy Studies, 10 November 2026. cps.org.uk.
3. Brit Brief, “Government costs add £442k to London flat prices, says CPS”, Brit Brief, 10 November 2026. britbrief.co.uk.
4. KentOnline, “Final draft of plan to deliver thousands of homes set for approval”, KentOnline, 25 February 2026. kentonline.co.uk.
5. Canterbury City Council, “Timetable for district’s planning blueprint set to be tweaked”, Canterbury City Council News, 6 June 2025. news.canterbury.gov.uk.
6. David Callaghan, “Housebuilders warn first-time buyer scheme will stall market”, The Negotiator, 10 November 2026. thenegotiator.co.uk.
7. Canterbury City Council, “Canterbury District Local Plan: Regulation 19 consultation”, Canterbury City Council News, 23 March 2026. news.canterbury.gov.uk.