New build vs old house: how to choose

The short answer

Neither is better for everyone. A new build gives you a home nobody has lived in, lower energy bills, a warranty, no chain above you, and a set of buyer protections a resale does not have. A second-hand home is often cheaper for the space, usually comes with an established neighbourhood and a garden that has grown in, and you can see exactly what you are buying before you commit.

The right choice depends on what you value, how long you plan to stay, and how much you can put down. This guide sets the two side by side so you can weigh them for yourself.

What a new build gives you

Lower running costs

New homes are built to current building regulations, so they are usually far more energy efficient than older homes. Government statistics published on 29 October 2026, covering energy certificates from April 2016 to March 2026, put the median energy efficiency rating of new homes in England and Wales at 84, which is band B. For existing homes in England, the median was 68, which is band D.

That gap shows up in your heating bills. The rules are also tightening: the Future Homes Standard, published in March 2026, comes into force in England on 24 March 2027 and is designed so new homes are built with low-carbon heating and high levels of energy efficiency. Homes whose building control application was made before 24 March 2027 can still be built to the earlier rules, as long as work starts before 24 March 2028. The energy efficiency guide explains EPC ratings, heat pumps and solar panels.

A warranty

Nearly every new home is sold with a structural warranty, which usually runs for 10 years from completion. For the first two years, the builder must put right defects that breach the warranty's standards. After that, the warranty provider covers specified structural problems until the policy ends. Some warranties also protect your deposit if the builder becomes insolvent before completion. See how new-build warranties work.

Buyer protections

If the builder is registered with the New Homes Quality Code, it must:

• give you clear information before you reserve, including size, tenure, specification, expected council tax band and service charges
• not use high-pressure selling, such as an incentive that only applies if you decide on the spot
• give you a cooling-off period of at least 14 days after you reserve
• let you inspect the home, or send a qualified inspector, before completion
• run an after-sales service for at least two years
• deal with complaints to a set timetable, with the New Homes Ombudsman Service behind it

None of this applies when you buy a second-hand home from its owner.

No chain above you

The builder is not buying another home, so there is no chain above you to collapse. If you are selling a home of your own, you still have a chain below you, and some builders offer part exchange to remove it. The part exchange guide explains how that works.

Incentives and choice

Builders often offer incentives: a contribution to your deposit or stamp duty, upgrades, or help selling your current home. Treat them as builder-stated offers and get them in writing. New-build incentives shows where builders are cutting prices today. If you buy early, you may also get to choose kitchen, tile and flooring finishes.

What a second-hand home gives you

• Often more space for the money. Compare prices per square metre, not just the headline price.
• An established area. Trees, gardens, shops and schools are already there, and you can see how the street feels at different times.
• What you see is what you get. You view the actual home, not a show home or a plan.
• Room to negotiate. A seller may accept less, especially if their home has been on the market for a while.
• Character and plot. Older homes can have larger gardens or features new builds do not.

The trade-offs are higher running costs in many older homes, the risk of hidden defects, and repairs or upgrades you pay for yourself. You rely on a survey you commission and on the seller's answers to your solicitor's questions.

The new-build premium

A new home often costs more than a similar second-hand home in the same area. That gap is the new-build premium. Part of it reflects real value: the warranty, lower bills and a home with nothing worn out. Part of it is simply being new, and that part can fade once you have lived there and the home becomes a resale itself.

The premium matters most if you might sell within a few years. Before you agree a price, compare it with what similar homes nearby have actually sold for. The new-build premium tool sets a new home's price against similar local resales, so you can see the gap for a real home.

Your lender will also value the home. If the valuation comes in below the price, you may need a bigger deposit or a lower price to keep the same loan.

Costs compared

Stamp duty is the same whether a home is new or old. In England and Northern Ireland, standard stamp duty is nil up to £125,000, and first-time buyers pay nothing up to £300,000 on homes up to £500,000. On a £350,000 home, a home mover pays £7,500 and a first-time buyer £2,500. Use the cash you need calculator to see the full cost of a real new home, less the builder's incentive. It is an illustration, not advice.

Risks to weigh

Delays

If you buy before the home is finished, your completion date is an estimate. Builds slip because of weather, materials or labour. That can clash with a rental notice, a sale of your own, or a mortgage offer that expires. The off-plan guide explains how to plan for it.

Snags

Most new homes have some snags: small defects in the finish. The builder should fix them under its after-sales service, but it can take several visits. The snagging guide shows what to look for.

Tenure and ongoing charges

Check whether the home is freehold or leasehold. In England and Wales, for most new residential long leases granted on or after 30 June 2022 (1 April 2023 for retirement homes), ground rent is limited to a peppercorn, which in practice means nothing. Service charges are a separate cost and can rise.

Many new estates also have estate management charges, paid to a management company to look after roads, green spaces or play areas the council does not adopt. These apply to freehold houses too. Under the New Homes Quality Code, the builder must give you an estimate of these costs over the first five years before you reserve. The guide to leasehold, freehold and estate charges explains what to ask.

Living on a building site

On a large development, building can carry on around you for months or years. Ask which phases are still to come and when they are expected to finish. Under the Code, the builder must tell you about future phases it has planning consent for, and give you its best information on timescales when you complete.

Second-hand risks

Older homes carry their own risks: damp, old wiring, a boiler near the end of its life, roof repairs, or subsidence. A survey reduces the risk but cannot remove it, and the cost of putting things right is yours. If the home was built in the last 10 years, ask whether any of its original warranty is left.

Protections compared

How to decide

Ask yourself these questions:

1. How long will you stay? The longer you stay, the less the new-build premium matters and the more the lower bills add up.
2. How much is your deposit? Some schemes, including Your First Home, are only for new builds. See all schemes.
3. Can you wait? If you need to move by a fixed date, a finished new home or a resale may suit you better than buying off-plan.
4. Do you want to renovate? If you enjoy improving a home, a second-hand home gives you more room to add value.
5. What is the area like? Compare the new development with established streets nearby using the area guides.
6. What will it cost to run? Add energy bills, service or estate charges and expected repairs over the years you plan to stay, not just the price.

If you lean towards a new build, search every new home by place and read how to buy a new build home for each step.