Journal

How to Protect [and Boost] Your New Home's Value: Future-Proofing That Pays

Read Time: 2 minutes
Author. Ross Booth • Director & Passivhaus Certified Builder

Building a home to today's minimum regulations might be a bit cheaper now, but investing in a Passivhaus is a smart financial strategy. See how your choice affects your home’s bills, maintenance, value and future-readiness.

Over the past five years, we've seen a clear shift in what clients ask for. Most enquiries used to be for homes built simply to meet Building Regulations. Today, around 85% focus on building to the Passivhaus Standard.

It mirrors a wider UK trend. Passivhaus is moving from niche to normal as people connect energy-efficiency with long‑term value. About 1% of all new UK homes are now built to the Passivhaus Standard, with a 10% target by 2035.

Energy prices have been a big catalyst. Bills will rise again this autumn, meaning the typical UK home will pay £600 a year more than before Russia's invasion of Ukraine in 2022, which sent prices soaring.

Homeowners want predictability and that's driving demand for homes with measurably low energy use.

Pricing is Following Energy Performance

More people now factor energy performance into what they'll pay for a home.

  • Early evidence suggests Passivhaus-certified homes are achieving an estimated 5–15% uplift in valuations, offsetting the typical 4–8% additional build cost to meet the standard.
  • Rightmove reports 77% of homeowners would pay more for an energy-efficient home and 74% say efficiency will influence their next move.
  • NatWest: A home's EPC [Energy Performance Certificate] is now 'very important' to more people, rising from 29% [2021] to 42% [2025].
  • Market pricing reflects that shift. Properties rated EPC A or B command a 2.8% premium compared to EPC D, while homes rated F or G sell at a 4.2% discount [Nationwide]. 
     

Bottom line: as energy awareness grows, high‑performance homes are rewarded, while less efficient properties will lose value and become harder to sell.   

Source: Nationwide

4 Ways a Passivhaus Will Save You Money

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01. Future-Ready for Building Standard Changes

Passivhaus is where future building regulations are heading. Scotland is planning a Passivhaus-equivalent standard for all new build homes [voluntary from 2026 and mandatory from 2028]. 

With net‑zero emission targets fast approaching [2045 Scotland; 2050 UK], households will be nudged to cut energy use by upgrading insulation, replacing fossil-fuel boilers and improving their overall condition. A certified Passivhaus is optimised for net zero from day one, so you'll avoid expensive future retrofits.

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02. Lower, Predictable Bills

Passivhaus reduces heating demand by 79% versus homes built to current Scottish building regulations. A draught-free, well-insulated home with high-performance triple glazing and controlled ventilation keeps heat where it belongs, so you spend less to stay comfortable, year after year.

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03. Less Maintenance 

Moisture is the enemy of buildings. Passivhaus detailing avoids thermal bridges, reducing the risk of condensation, mould and fabric deterioration. Fewer problems mean fewer disruptive, expensive repairs over the life of the home.

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04. Climate Ready 

Summer 2025 was the UK's warmest on record [the five hottest have all been since 2000] and the share of UK homes reporting summer overheating has quadrupled to 80% over the last decade.

The Passivhaus Standard includes strict overheating limits [homes must spend less than 10% of the year above 25°C, but aim for 0%]. Designs are stress‑tested for future climate conditions and with proper ventilation, shaded glazing and no excess heat loss from hot water systems or appliances, a Passivhaus stays comfortable without needing bolt-on fixes [e.g. external blinds].

Watch Out For Greenwashing

As efficiency becomes central to value, "eco", "green" or "low-energy" labels are everywhere. But unless a home is independently tested against a rigorous standard [like Passivhaus] there's no evidence that claims of quality and performance are true. 

The UK has a well-documented energy performance gap. Many homes use 60% more energy than predicted at design stage. Passivhaus closes that gap by requiring measured airtightness, verified energy modelling, independent review and documenting on-site construction quality. In short: proof, not promises.

Also beware of claims like "designed using Passivhaus principles." Often it means a home has a few features added [e.g. triple glazing, extra insulation] with the assumption a low-energy home will follow.

Without all the Passivhaus principles working together, performance is a gamble. You could end up with a "low‑energy" home that barely dents your bills. We've explored the evidence in two cautionary case studies.

Passivhaus Vs Building Regs

If you're weighing up building a home that just meets building regulations vs Passivhaus Standard, ask: What will matter to me in 10 years?

  • Will my home meet buyer expectations, or lag behind?
  • Will I be shielded from rising energy costs, or exposed
  • Will I have measured proof of performance, or just marketing promises?
  • Will my home be climate-ready and healthy? No overheating, fresh, filtered air, no condensation, dust or mould?

Author.

Ross Booth

Director & Passivhaus Certified Builder

A skilled joiner with over 20 years’ of experience, Ross began his career as an apprentice building new homes in Aberdeenshire. He broadened his craft, managing builds in Australia and Canada. A certified Passivhaus tradesperson, Ross has spent his career determinedly striving to raise the standard of UK homes.

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