RICS Level 2 Survey in B24 Birmingham

The housing stock in B24 tells the story of Birmingham's industrial and suburban expansion across three distinct eras. Along Tyburn Road and its side streets, the dominant property type is the Edwardian and early Georgian terrace - two-up two-down or extended three-bedroom red-brick houses built between 1912 and 1935, many of them constructed using clay extracted from the same Holly Lane brick works that later became the site for Persimmon Homes' Holly Fields development. These properties feature solid brick external walls, suspended timber ground floors, single-skin rear extensions, and original sash or casement windows that are now well past their design life. The 288 houses recorded on Tyburn Road alone give a sense of the scale of this stock, and the common thread running through almost all of them is the need for ongoing maintenance that owners have not always been able to fund.

The second wave of building, running from the mid-1930s through to the late 1950s, produced the cavity-wall semi-detached houses that now dominate the B24 market by sales volume. The Rightmove average of £274,658 for a B24 semi reflects strong local demand from families priced out of Sutton Coldfield and buyers commuting to the industrial employers in Tyburn and Castle Bromwich. These inter-war semis were built to a higher specification than their Edwardian predecessors - cavity walls, concrete ground floors, clay-tile roofs - but they are now 70 to 90 years old, and the original cavity-wall ties, built from iron or early-generation steel, are corroding. Corroded ties lose their ability to hold the outer leaf of the wall against the inner leaf, and the result can range from hairline cracking in the outer skin to visible bowing. Our surveyors use binoculars and a calibrated crack gauge on every B24 wall inspection.

The mid-century and later stock in B24 0QJ and parts of B24 8 includes post-war council-built properties, 1960s and 1970s system-built housing, and a scattering of 1980s and 1990s private developments. These buildings introduce a different set of concerns: non-standard construction types (some use no-fines concrete or timber-frame panels), flat-roof sections that have been poorly maintained, and UPVC windows installed in the 1990s that are now beyond their 25-year warranty period. All of these property types sit within the scope of a RICS Level 2 Survey, and our report will identify which type you are buying before assessing condition accordingly.

The geology of north-east Birmingham is a direct consequence of the Triassic-age sedimentary sequence that underlies the West Midlands. Higher plateau areas in B24 sit on Triassic sandstone, which is relatively stable. The lower-lying ground, however - including the land immediately around the former Holly Lane brick works - is underlain by the Mercia Mudstone Group: a sequence of red-brown clay, siltstone and evaporite horizons that have high plasticity indices and a well-documented tendency to shrink when they dry out and swell when they become saturated. The Holly Lane site itself is the most tangible evidence of this: the land was commercially viable as a brick works because the clay at shallow depth was of sufficient quality to manufacture fired clay bricks at scale. That same clay now sits beneath the gardens and sub-floor voids of thousands of B24 homes.

Shrink-swell subsidence does not always follow a linear or dramatic pattern. The most common presentation is seasonal movement: walls crack slightly in a dry summer as the clay shrinks, then partially close up again during a wet autumn as moisture returns to the soil. Over multiple cycles - and B24 properties have been through 70 to 90 of them - the cumulative effect is step-cracking at mortar joints, lintel rotation above window openings, and soil voids beneath ground-bearing concrete slabs. Our surveyors record crack width, pattern and orientation at every visit. A crack that is diagonal, wider at the top than the bottom, and located at a window corner is the classic subsidence signature; a horizontal crack at the base of a cavity wall outer leaf points more directly toward tie corrosion or overloading.

Buyers of B24 properties with known clay exposure - particularly those close to the former Holly Lane works, along Tyburn Road, and in the lower postcodes of B24 8 and B24 9 - should treat any cracking as a prompt for thorough inspection rather than an automatic barrier to purchase. The majority of cracked properties we survey in B24 show historic movement that has stabilised, and many can be purchased and repaired at a cost that, once quantified, supports a meaningful renegotiation. The RICS Level 2 Survey is the correct starting point: it identifies and categorises every crack, gives our professional opinion on likely cause, and recommends specialist structural investigation where the evidence warrants it.

B24's employment base gives important context to the buyer profile in this part of Birmingham. Jaguar Cars' Castle Bromwich Assembly factory and Fort Dunlop - the former tyre manufacturing complex on Tyburn Road that has been reborn as a mixed commercial campus - anchor an area with approximately 35,000 workers in the Erdington constituency and an employment rate that sits above the Birmingham city average. Many buyers in B24 are households on average incomes around £38,700 who are purchasing their first or second property, often stretching to the limit of their mortgage offer to get into the semi-detached market at the £274,000 average. For these buyers, an undetected Category 3 defect is not an inconvenience - it is a financial crisis. A new roof on a B24 semi runs to £6,000 to £9,000. Rewiring a three-bedroom house costs £4,500 to £7,000. Stabilising a subsidence-affected foundation with underpinning can exceed £15,000.

The sales volume data for B24 - 260 transactions in the last 12 months, down 16% from the previous year - tells a secondary story: buyers are taking longer to commit, and vendors are pricing more carefully. In a market where price negotiation has become more acceptable, a RICS Level 2 Survey report with a clear Schedule of Condition gives buyers a documented basis for a reduction request. Our surveyors regularly see buyers in B24 use findings in our reports to negotiate reductions of £5,000 to £15,000 on mid-century semis where roof, damp or electrical defects were identified. The cost of the survey - from £395 in B24 - is typically recovered on a single line item in the post-survey negotiation.

Buyers arriving from outside Birmingham who are relocating for work at Jaguar Land Rover or the broader Tyburn Road industrial corridor sometimes underestimate the condition variation within B24. Gravelly Hill, known nationally as the location of the Gravelly Hill Interchange (Spaghetti Junction), sits within B24 and contains housing stock that spans four decades and multiple construction methods. A property on the western edge of B24 9, close to the Spaghetti Junction industrial cluster, may have been exposed to a different maintenance history and ground condition than a property a mile north toward Walmley. Our local knowledge of B24 means we approach each address with a specific working hypothesis about what we are likely to find, which makes the inspection more targeted and the report more useful.