Newbury & Basingstoke New-Build Estates: Why Section 6 Catches Nearly Every Extension
Modern estates in Newbury, Thatcham and Basingstoke sit on shallow strip foundations and tight plots. Here's why a routine rear extension almost always triggers Section 6 of the Party Wall Act.
The estates ringing Newbury, Thatcham, Basingstoke and Tadley — Sandleford Park, Kingsland Grange, Hounsome Fields, Chineham — look nothing like a Victorian terrace, but they trip up homeowners on the Party Wall Act just as often. The reason is Section 6: excavation near a neighbour's foundations. On tight modern plots with shallow strip footings, almost any rear extension crosses the trigger line.
What Section 6 actually says
You must serve notice on any adjoining owner if you're excavating: - Within 3 metres of their building or structure, at a depth lower than the bottom of their foundations, or - Within 6 metres, if any part of your excavation cuts a 45° line drawn downwards from the bottom of their foundations.
Why new-build estates almost always trigger it
- Plot widths of 8–10 m mean your rear extension footings are often 2–3 m from the neighbour's flank wall.
- Strip foundations of 800–1,000 mm are standard on modern estates. Anything deeper next door (e.g. a raft or a piled footing for a garden room) triggers Section 6 immediately.
- Semi-detached and end-of-terrace plots in Basingstoke's Chineham and Hatch Warren developments are the highest-risk — one or both neighbours will almost always be within the 3 m zone.
- Detached homes in Newbury's Sandleford Park aren't safe either: outbuilding foundations, boundary walls and garden studios all count as "adjoining structures".
What "notice" doesn't mean
A Section 6 notice isn't a request for permission. Your neighbour cannot stop the works — they can only choose how the process runs. Their three options are the same as for Section 2: 1. Consent in writing within 14 days. 2. Dissent and appoint their own surveyor (you pay the reasonable fees). 3. Dissent and agree a single Agreed Surveyor with you.
Silence for 14 days is treated as dissent, and a surveyor is appointed on their behalf.
The Newbury/Basingstoke sequence
- Architect confirms the extension footprint and foundation depth.
- Structural engineer specifies the footing type.
- Eligibility check — Section 6 applies if the numbers above are met.
- Notice drafted and served, minimum one month before works.
- Schedule of Condition on the neighbour(s).
- Award drafted, agreed and served (if not consented).
- Works can lawfully begin.
Fixed fees for RG14–RG20 and RG21–RG29
- Notice service: £150 first notice, £75 each additional
- Full Award (one dissenting neighbour): £850
- Two dissenting neighbours: £1,275
- Schedule of Condition standalone: £350
No mileage charges — Newbury and Basingstoke are inside our 70-mile radius from Highworth. Site visits usually within a week.
The single biggest mistake
Assuming that because your house is only ten years old and everyone's foundations are "the same", Section 6 doesn't apply. It applies to the depth of your excavation relative to their foundations — and a modern extension with insulation upgrades routinely digs 1.2–1.5 m below ground, well below the neighbour's original strip. Serve the notice, book the Schedule of Condition, and you protect both sides for the price of one weekend's takeaway budget.
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