Sea Point sits on the well-known granite and Malmesbury shale contact, with dense development and very constrained erven.
Access rather than geology is usually what determines whether a borehole is possible here at all.
What Is Under Sea Point
The formations below are what a rig actually meets on a Sea Point property, and between them they govern the depth, the casing requirement and what the hole will realistically give you.
| Formation | Where it sits | What it means for drilling |
|---|---|---|
| Cape Granite Suite | The lower slopes and the well-known granite-shale contact along the seaboard | Water in the weathered mantle and in jointing. Depth to fresh rock changes quickly across a single stand. |
| Malmesbury Group shale | Intruded by the granite, exposed in places along the shore | A tight formation where water comes from fracture zones rather than the rock mass. Moderate yields at best. |
| Table Mountain Group sandstone | The mountain and buttresses above the suburbs | Hard fractured quartzite. Deeper, fracture-dependent, and the recharge for everything below it. |
Send your street and what the water is for, and get an itemised quote for Sea Point.
Get a Sea Point Borehole QuoteWhat That Means for Your Borehole
- Access is the first constraint, not the geology. Tight erven, steep driveways and shared walls rule out more positions here than ground conditions do.
- Saline intrusion is a real risk this close to the sea, so the sustainable rate matters more than the peak rate.
- Yields are typically modest. Storage paired with a moderate hole is the normal working answer on the seaboard.
Where We Work Around Sea Point
- Sea Point main road and the promenade side
- Fresnaye and the upper slopes
- Bantry Bay approaches
- Three Anchor Bay and Green Point boundary
- Sectional title blocks along Beach Road
- Older stands on the mountain side
What to Watch For Here
Most of Sea Point is sectional title. That makes the body corporate the first conversation rather than the drilling contractor.
Yields are modest on this ground, so a borehole here is a supplement to municipal supply rather than a replacement for it.
What the Water Is Used For
- Irrigating established gardens and mature trees
- Topping up the pool, subject to what the analysis says
- Washing paving, vehicles and hard surfaces
- Standby supply when municipal water is interrupted
- Reducing a monthly municipal water bill
Wellpoint or Borehole?
Almost never. There is no meaningful sand aquifer under most of the seaboard, and hard rock close to surface leaves a driven point nothing to draw from.
Water Quality in Sea Point
Proximity to the sea makes salinity the parameter to watch, and it can climb if a hole is pumped harder than the ground recharges. Otherwise the water off granite and sandstone here is typically soft and low in dissolved solids.
A water analysis is what turns that from a general expectation into a number for your specific hole, and treatment should be specified against the result rather than against the area's reputation.
Registration and Abstraction
Boreholes and wellpoints inside the City of Cape Town must be registered with the City. Separately, the National Water Act governs how much you may abstract: reasonable domestic use and small-scale garden watering generally fall under Schedule 1, while larger abstraction may require registration or a water use authorisation from the Department of Water and Sanitation. Requirements change, so confirm your position before drilling rather than after. Requirements change, so confirm your position before drilling.
Related Services
For the drilling process itself, the geology across the rest of the country and how a quote is put together, see Borehole Installers South Africa.
Borehole Prices in Sea Point
Drilling is charged per metre, so depth drives the total. The ranges below are framed for local ground conditions and access.
| Item | Indicative range | What moves it locally |
|---|---|---|
| Drilling, per metre | R600 - R1,400 /m | Hard rock and difficult access both push the rate up on the seaboard. |
| uPVC casing, installed, per metre | R400 - R750 /m | Casing the weathered zone is standard; the depth of it varies sharply with slope position. |
| Mobilisation and site establishment | R4,000 - R15,000 | Access and site conditions move this; a site visit settles it before quoting. |
| Water survey | R5,000 - R12,000 | Targets structure rather than depth. Worth most where yield is fracture-dependent. |
| Yield testing | R3,500 - R15,000 | Establishes the sustainable rate that pump selection depends on. |
| Pump, supplied and installed | R15,000 - R45,000 | Greater depth means more head, which means a larger pump and heavier cable. |
| Storage and booster | R12,000 - R35,000 | Needed wherever peak demand exceeds the borehole's sustainable rate. |
| Typical complete project | R110,000 - R280,000+ | Everything above, excluding treatment, which depends entirely on the water analysis. |
These are indicative ranges, not a quotation. They are compiled from published South African supplier and contractor pricing to give you a starting point for budgeting. They are not our rate card, and no figure here is a commitment.
Treat them as a broad guide only. Published borehole pricing in South Africa varies enormously - different 2026 guides quote per-metre drilling rates for the same province that differ by a factor of three - because depth, geology, access, specification, distance and fuel costs all move the number. Depth in particular is not known until the hole is finished. Figures generally exclude VAT unless noted, and change over time. Only an itemised written quote against your actual site means anything.
Sea Point Borehole FAQs
Is a borehole realistic on a Sea Point property?
It depends far more on access than on geology. A truck-mounted rig needs a route in and a working platform, and dense development on small erven defeats that on many properties here.
Where it is possible, expect a modest yield. This is supplementary supply for irrigation and washing rather than a replacement for the municipal connection.
Can a Sea Point apartment block drill a borehole?
With the body corporate's approval and a workable position on the common property, sometimes yes, usually for common-area irrigation and washing.
It is a scheme decision rather than an individual one, and the practical constraint is almost always whether a rig can physically reach a sensible position on the site.
Can a drilling rig even get onto a Sea Point property?
That is the right first question here, and the honest answer is sometimes not. A truck-mounted rig needs a route in and a working platform at the drilling point, and tight erven with steep access defeat both more often on the seaboard than anywhere else in the metro.
A site visit settles it before anything is quoted. Smaller rigs exist for constrained sites, but they change the cost and sometimes the achievable depth.
Will a borehole this close to the sea give salty water?
It can, and the risk rises with how hard the hole is pumped. Drawing down faster than the ground recharges pulls the saline interface toward the borehole.
Yield testing establishes a sustainable rate, and sizing the pump to that rather than to the hole's maximum is what protects the water quality over the long term.
NEED A BOREHOLE IN SEA POINT?
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