Owners · Buyers · Heritage architects
Heritage building engineering for Hobart's older homes
Georgian sandstone cottages in Battery Point, Victorian brick homes in North and West Hobart, timber houses on old stumps: older buildings move and age in their own ways. We assess them, design repairs that work with the original fabric, and prepare the structural drawings heritage approvals ask for.
Engineering only
We assess and design. A licensed builder or stonemason carries out the work.
Fixed quote in 1–2 business hours
Get a fixed quote for your older home
Send photos of the building and the problem, its approximate age, and whether it is heritage listed if you know.
Fixed quote for your job. No obligation. Or call 03 6146 4747
In short
A heritage building engineer assesses older and heritage-listed buildings and designs repairs or alterations that keep as much original fabric as possible. In Hobart, works to a place on the Tasmanian Heritage Register need Heritage Council approval, and local heritage places and precincts fall under Code C6 of the Hobart Local Provisions Schedule. We provide the structural reports and drawings, priced by fixed quote.
- Fee
- Fixed quote per job, agreed before we start
- Typical buildings
- Georgian and Victorian sandstone and brick, timber homes on stumps
- You receive
- Condition report, existing-condition drawings, repair design and a Form 35
Approvals
What approvals does a heritage home need in Hobart?
A heritage home in Hobart can need up to three approvals: the Tasmanian Heritage Council for a state-listed place, the City of Hobart for a local heritage place or precinct, and a building surveyor for the building work itself.
| Listing or approval | Who decides | Usual route | What the engineer provides |
|---|---|---|---|
| Tasmanian Heritage Register | Tasmanian Heritage Council | A minor works approval (called a Certificate of Exemption before 2025), or a permit through a council development application | Drawings of the existing structure alongside the proposed works, and the engineering case for the repair |
| Local heritage place or precinct (Hobart LPS, Code C6) | City of Hobart, as planning authority | A planning permit is usually needed. Precinct buildings are rated contributory, non-contributory or neutral | Structural reports and drawings for the application |
| Building approval (any building) | Building surveyor | Low risk, notifiable or permit work under the Director's Determination | A structural design with a Form 35 |
From Heritage Tasmania's getting approval guidance and the City of Hobart's heritage FAQs. Ground disturbance at a heritage place may also need an archaeological statement.
The Hobart Local Provisions Schedule
The Hobart LPS took effect on 26 September 2025, replacing the Hobart Interim Planning Scheme 2015. Local heritage places and heritage precincts now sit under Code C6 of the Tasmanian Planning Scheme.
Where are Hobart's heritage areas?
Hobart's heritage studies covered Sandy Bay, West Hobart, South Hobart, North Hobart and Battery Point, about 900 places in all. Your council or heritage consultant can confirm whether a property is listed.
Common problems
What structural problems do older Hobart homes have?
Older Hobart homes most often suffer from shallow footings, water and decay, because they were built before site classification, damp-proof courses and modern ties were standard. These are general engineering observations; each building is assessed on its own evidence.
Shallow footings
Rubble, sandstone or brick footings set close to the surface. On reactive clay they move with the seasons, so cracks open and close.
Lime mortar and repointing
Lime mortar is softer than cement and lets moisture out through the joints. Hard cement repointing can trap it in the stone.
Rising damp and salt
Without an effective damp-proof course, salts rise into the base of walls and erode soft sandstone and brick.
Roof spread
Roofs without adequate ceiling ties can push the tops of walls outward, showing as bowing walls and cracks near the eaves.
Timber decay
Stumps, bearers, lintels and wall plates rot or suffer borer, especially where subfloor ventilation is poor.
Openings and lintels
Timber lintels decay and flat brick arches drop, cracking the masonry over windows and doors.
Is a crack in a sandstone wall serious?
A crack in a sandstone wall is serious when it is wide, growing or paired with other signs, such as doors that bind or a wall that leans. Many cracks in old masonry are old and stable. We measure each one, rate it against the AS 2870 damage categories and, where the answer isn't clear, recommend readings over the seasons before any repair is designed.
Our guide to cracks in walls explains the widths and patterns in more detail.
Our approach
How do you repair a heritage building without losing its character?
You repair a heritage building by finding the cause first, then doing the least work that fixes it, with materials that suit the original. A crack in a sandstone wall is a symptom, and the cause is often water, not the wall.
Do
- Find and fix the cause first: drains, downpipes, leaks and trees come before structure
- Monitor cracks through the seasons before deciding on underpinning
- Match materials, such as lime mortar for soft stone and old brick
- Keep original fabric, and make new structure identifiable and reversible where possible
- Record the existing condition before any work starts
Don't
- Repoint or render soft sandstone with hard cement
- Underpin a whole house because of one crack
- Remove walls or chimneys without checking what they hold up
- Dig beside shallow old footings without a design
- Seal masonry with coatings that stop it drying out
Working with your heritage consultant or architect
On a listed place, a heritage consultant or architect usually prepares the heritage documentation. We provide the structural part: an assessment of the building's condition, drawings of the existing structure, and a repair or alteration design that keeps disturbance to original fabric low, with a Form 35 for the building surveyor.
Repairs in older homes are often a mix of services: a crack and movement report to find the cause, underpinning design where footings must be strengthened, or restumping for timber floors on failing stumps. We never sell or carry out the work, so the advice is about the building, not a job.
How it works
How does a heritage structural assessment work?
- Step 1
Tell us about the building
Photos of the problem, the building's approximate age, whether it is listed, and what you plan to do.
- Within 1–2 business hours
Get a fixed quote
It says what's included, whether footings need exposing and when you'll receive the report.
- On site
Inspect and record
Cracks measured and rated against the AS 2870 damage categories, footings exposed where needed, and the structure recorded.
- On the date in your quote
Report and drawings
The cause, the condition and what to do, with existing-condition drawings of the structure for heritage approvals.
- Only if needed
Repair or alteration design
A design that respects the fabric, a Form 35, and stage inspections while a licensed builder or stonemason does the work.
Heritage and older homes
Every old building is different, so we price each job from your photos and plans, and fix the price before we start.
- Condition assessment of the structure
- Existing-condition drawings for heritage approvals
- Repair or alteration design with a Form 35
- No repair work to sell you, ever
Buying an older home?
A pre-purchase structural inspection from $590 + GST tells you what the cracks or sloping floors mean before you commit.
Related services
Often needed in older homes
Underpinning advice, design & certification
An independent second opinion on an underpinning quote, then design, stage inspections and certification. We never sell or install underpinning.
Learn more
Restumping & reblocking engineering
Subfloor inspection, stump and footing layout, documents for your building surveyor and certification for raised timber floors. Any licensed builder can do the work.
Learn more
Wall removal & beam design
Load-bearing wall removal designed properly: the steel or LVL beam, the posts and the footings, with drawings your builder can build from.
Learn more