Twenty English local authorities had a 2024 median new-build house price above £535,000 — each with at least 50 recorded sales of new-build detached, semi-detached or terraced homes, filtered from HM Land Registry Price Paid data. At the top, Windsor and Maidenhead's median new-build house sold for £716,500, 3.5 times the £203,995 floor in Liverpool, England's cheapest new-build-house market on the same measure. But the borough's council tax bill tells a different story: at £1,952.62 for Band D in 2026-27, it's the lowest of any authority on this list — and £458 a year below the national average.

This piece is the mirror of a companion table showing England's cheapest places to buy a new-build house. Restricting both to houses only (detached, semi-detached and terraced — no flats) matters because a citywide median can be dragged down by a large flat share; a house-only cut shows what the market for an actual house looks like, at both ends.

The 20 most expensive local authorities for a new-build house

Ranked by 2024 median price, category-A HM Land Registry transactions, new-build detached/semi/terraced sales only, minimum 50 recorded sales:

Local authorityMedian new-build house priceSales (2024)Band D council tax (2026-27)
Windsor and Maidenhead£716,50092£1,952.62
Brentwood£700,00051£2,258.14
Waverley£670,000142£2,604.87
Bath and North East Somerset£649,99579£2,383.42
Runnymede£631,50060£2,492.99
North Hertfordshire£620,000183£2,448.52
Hart£609,80086£2,400.02
Guildford£605,000134£2,547.30
Reigate and Banstead£605,00051£2,566.61
Cotswold£600,00071£2,391.65
Broxbourne£565,000129£2,306.43
East Hertfordshire£564,875228£2,454.78
South Cambridgeshire£555,000418£2,536.25
East Hampshire£552,500164£2,343.92
Bracknell Forest£550,000186£2,264.80
West Berkshire£550,000145£2,505.37
Chelmsford£550,000147£2,300.18
Wokingham£549,995329£2,497.70
Basingstoke and Deane£545,000214£2,255.21
Uttlesford£535,000342£2,333.82

For context, the national 2024 median for a new-build house across 211 qualifying English local authorities was £351,500 (55,965 sales) — every authority on this list sits at least 52% above that national figure, and the top five are at least 80% above it.

A Thames Valley and Home Counties cluster, not a scattered list

Geography does most of the explaining. Of the twenty, thirteen sit within the wider commuter belt around London and the M4/M11/M25 corridors — Windsor and Maidenhead, Brentwood, Runnymede, Guildford, Reigate and Banstead, Broxbourne, East and North Hertfordshire, South Cambridgeshire, Bracknell Forest, West Berkshire, Wokingham and Basingstoke and Deane. Waverley, Hart and Cotswold extend the pattern into the Surrey Hills and Cotswolds, while Bath and North East Somerset is the one clear outlier — a west of England market shaped by proximity to Bath and Bristol rather than London commuting. Uttlesford and Chelmsford, both in Essex, close out the table.

New-build stock in these areas is heavily weighted toward detached houses. Across the ten priciest authorities, detached properties made up 45% of 2024 new-build house sales (433 of 949), against 36% semi-detached and 18% terraced — and detached houses sold for an average of £801,649, well above the £592,372 average for semis and £590,884 for terraces in the same set. A large share of the premium at the top of this table is a detached-house premium, not simply a location premium on an equivalent property.

Every authority on this list clears the £500,000 stamp duty cliff

First-time buyer relief in England disappears entirely above £500,000 — not tapered, a hard cliff. Above that price, a first-time buyer pays exactly the same Stamp Duty Land Tax as a home mover. Every median price in the table above is over £500,000 or, in the case of the bottom four (Bracknell Forest, Chelmsford, Wokingham, Basingstoke and Deane, Uttlesford), close enough that most individual sales in those authorities will clear it too. Worked examples at England's standard SDLT rates, confirmed via Homecost's calculator on 2026-09-08 (identical for first-time buyers and movers at these prices):

PriceSDLT owedEffective rate
£535,000 (cheapest of the 20)£16,7503.13%
£605,000£20,0003.33%
£649,995£22,5003.46%
£716,500 (Windsor and Maidenhead)£25,8253.60%

For comparison, the SDLT bill on the £351,500 national new-build house median is £7,575 for a mover and £2,575 for a first-time buyer — relief that a buyer in any of these twenty authorities cannot claim. Read more on how the cliff works in our explainer on the £500,000 stamp duty threshold.

What the monthly cost looks like

Illustrative only — actual rates depend on lender, deposit size and credit profile. Using the Bank of England's quoted 5-year fixed rate at 75% loan-to-value (4.32%, April 2026), a 25% deposit and a 25-year term:

PriceDeposit (25%)LoanIllustrative monthly repayment
£351,500 (national new-build house median)£87,875£263,625~£1,439
£535,000£133,750£401,250~£2,189
£605,000£151,250£453,750~£2,476
£716,500£179,125£537,375~£2,932

These figures exclude council tax, buildings insurance and any service charge, and are not a quote — speak to a mortgage broker or lender for a rate based on your own circumstances.

The twist: expensive to buy doesn't mean expensive to run

Eleven of the twenty authorities in the table have a 2026-27 Band D council tax bill below the £2,410.97 national average across all 296 English billing authorities — despite sitting at the very top of the new-build house price table. Windsor and Maidenhead is the sharpest case: the most expensive market on this list to buy in, and the cheapest to run, at £1,952.62. Brentwood (£2,258.14), Basingstoke and Deane (£2,255.21), Bracknell Forest (£2,264.80), Chelmsford (£2,300.18) and Uttlesford (£2,333.82) all combine a house price at least 50% above the national new-build median with a council tax bill below the national mean.

This is the reverse of the pattern in our cheap-to-buy, dear-to-run analysis of England's council tax burden, which found the opposite inversion — low-priced northern and coastal markets carrying some of the country's highest council tax burdens relative to typical prices. Together, the two pieces show that purchase price and the ongoing tax bill move largely independently of each other across England — a cheap postcode is not always cheap to run, and an expensive one is not always expensive to run.

Not every authority on this list fits that pattern: Waverley (£2,604.87) and Reigate and Banstead (£2,566.61) carry both a high purchase price and an above-average council tax bill, so the "expensive but cheap to run" framing is a majority pattern here, not a universal rule.

Try it on your own postcode

Homecost's postcode tool breaks this down for any address — recorded sale prices, the current Band D council tax rate, an EPC-based running-cost estimate, and stamp duty for your own situation. Compare more markets in our regional price guides, including the cheapest and most expensive ends of England's new-build market.

This is general information based on published data, not financial or tax advice. Speak to a qualified mortgage adviser or conveyancer before acting on any figure in this article.