February172025 Deans Building Passive Home Rose Manor 0128

PASSIVE HOUSE CLASSIC

Whitehall

Carbon Savings

2,312 KG

Heat Savings

92%

This thoughtfully designed eHaus is Marlborough’s first certified Passive House. Built to perform, the home features 278mm thick walls, triple-glazed windows, and exceptional airtightness, delivering year-round comfort and remarkably low energy use. 

Inside, the spacious layout includes three bedrooms, with a generous master suite complete with walk-in robe and ensuite. An open-plan kitchen and living area connects to a separate media room and office, offering both space to entertain and quiet corners to retreat. 

A covered deck extends the living outdoors which is ideal for Marlborough’s long summers. Designed and built for a couple downsizing from a draughty 1920s bungalow, this home will provide a far more comfortable retirement than their previous home. You can read more about the couple and their decision to build a Passive House here.

Meet the team Behind this project

Attachment 1

Vlada Acimovic

Vlada is an European trained Architect, Certified Passive House designer and passionate to see New Zealand adopt the eHaus approach to building spaces that he has been familiar with for so long in Europe. 

Design Components

Floor
Fully insulated concrete pad with a U-value of 0.182 W/(m²K)
Wall
140mm timber frame with service cavity U-value of 0.199 W/(m²K)
Glazing
Triple Glazed Ug value=0.5 W/(m²K) g- value = 52%
Ventilation
Zehnder ComfoAir Q350 MHRV

Performance Specs

Heating Demand
12.8 kWh/(m²yr)
Heating Load
7.9 W/m²
Frequency of Overheating
0.2% year over 25C
TFA
156.7 m²
Form Factor
3.22
Air Leakage @ 50Pa
0.46ACH
Per Demand
31 kWh/(m²yr)

Consultant: eHaus - Maria Rei

Certifier: Praxis